Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Chevrolet TrailBlazer 6.0 H, AWDFACTORY OEM SERVICE PROCEDURE
Master Electrical Component List
| Name | Location | Locator View | Connector End View |
|---|---|---|---|
| 1-2 Shift Solenoid (1-2 SS) Valve | Inside the automatic transmission | - | Component Connector End Views |
| 2-3 Shift Solenoid (2-3 SS) Valve | Inside the automatic transmission | - | Component Connector End Views |
| 3-2 Shift Solenoid (3-2 SS) Valve | Inside the automatic transmission | - | Component Connector End Views |
| A/C Compressor Clutch Assembly | Behind the A/C compressor pulley, part of the A/C compressor | - | Component Connector End Views |
| A/C Low Pressure Switch | At the right rear of underhood compartment, on the accumulator | - | Component Connector End Views |
| A/C Refrigerant Pressure Sensor | On the high pressure hose connection to the compressor | - | Component Connector End Views |
| Accelerator Pedal Position (APP) Sensor | On the accelerator bracket | - | Component Connector End Views |
| Air Suspension Compressor Assembly (G67) | Behind the right rear wheel well | - | Component Connector End Views |
| Air Suspension Inflator Switch (G67) | Right rear trim panel | - | Component Connector End Views |
| Air Suspension Sensor - LR (G67) | Above the left rear wheel, attached to the frame and upper control arm | - | Component Connector End Views |
| Air Suspension Sensor - RR (G67) | Above the right rear wheel, attached to the frame and upper control arm | - | Component Connector End Views |
| Air Temperature Actuator - Left | Below the I/P, to the left of the center console, above the accelerator | - | Component Connector End Views |
| Air Temperature Actuator - Right | To the right of the I/P center support, behind the I/P | - | Component Connector End Views |
| Air Temperature Sensor Assembly - Inside (CJ2) | In the left B-pillar | - | Component Connector End Views |
| Air Temperature Sensor - Lower Left (CJ2) | In the lower air duct to the left of the lower console | - | Component Connector End Views |
| Air Temperature Sensor - Lower Right (CJ2) | In the lower air duct to the right of the lower console | - | Component Connector End Views |
| Air Temperature Sensor - Upper Left (CJ2) | In the upper duct in the left center of the I/P | - | Component Connector End Views |
| Air Temperature Sensor - Upper Right (CJ2) | In the upper duct in the right center of the I/P | - | Component Connector End Views |
| Ambient Air Temperature Sensor (CJ2) | Above the left side of the grille | - | Component Connector End Views |
| Ambient Air Temperature Sensor (DF5) | Above the left side of the grille | - | Component Connector End Views |
| Ambient Light Sensor (CJ3) | In the center of the I/P upper trim panel | - | Component Connector End Views |
| Ambient Light/Sunload Sensor Assembly (CJ2) | In the center of the I/P upper trim panel | - | Component Connector End Views |
| Audio Amplifier (UQA) | Behind the right side panel of the rear compartment | - | Component Connector End Views |
| Automatic Transmission Fluid Pressure Manual Valve Position Switch | Inside the automatic transmission | - | Component Connector End Views |
| Automatic Transmission Shift Lock Actuator | In the floor shift control | - | Component Connector End Views |
| Auxiliary Power Outlet - Console | At the rear of the lower console | - | Component Connector End Views |
| Auxiliary Power Outlet - Front | In the center of the I/P beside the cigar lighter | - | Component Connector End Views |
| Backup Lamp - Left (Z88) | In the rear bumper at the left rear corner of the vehicle | - | Component Connector End Views |
| Backup Lamp - Right (Z88) | In the rear bumper at the right rear corner of the vehicle | - | Component Connector End Views |
| Battery | Left front of the underhood compartment | - | - |
| Blower Motor | Below the right side of the I/P near the I/P compartment | - | Component Connector End Views |
| Blower Motor Control Module (CJ2) | Below the right side of the I/P near the blower | - | Component Connector End Views |
| Blower Motor Resistor Assembly (CJ3) | Attached to the bottom of the blower assembly | - | Component Connector End Views |
| Body Control Module (BCM) | Attached to the rear fuse block, beneath the left rear seat | - | Component Connector End Views |
| Brake Booster Vacuum Sensor (5.3L) | On the power brake booster | - | Component Connector End Views |
| Brake Fluid Level Switch | At the left rear of the underhood compartment in the master cylinder fluid reservoir | - | Component Connector End Views |
| Camshaft Actuator Solenoid Assembly (4.2L) | On the upper right of the engine block | - | Component Connector End Views |
| Camshaft Position (CMP) Sensor (4.2L) | At the upper right front of the engine block, below the valve cover | - | Component Connector End Views |
| Camshaft Position (CMP) Sensor (5.3L/6.0L) | At the center front of the engine | - | Component Connector End Views |
| Cargo Lamp | In the interior cargo area at the rear of the headliner above the liftgate | - | Component Connector End Views |
| Cellular Microphone (UE1) | In the upper console | - | Component Connector End Views |
| Center High Mounted Stop Lamp (CHMSL) | At the top center of the liftgate exterior | - | Component Connector End Views |
| Cigar Lighter | In the center trim panel of the I/P | - | Component Connector End Views |
| Cobra Intrusion Sensor Module (BAE) | Part of export theft deterrent option BAE, dealer installed | - | - |
| Console Mode Actuator - Auxiliary | Inside the lower console, at the rear | - | Component Connector End Views |
| Cooling Fan | At the front of the engine | - | Component Connector End Views |
| Cornering Lamp - Left (Z88/W49) | Below the left headlamp, to the left | - | Component Connector End Views |
| Cornering Lamp - Right (Z88/W49) | Below the right headlamp, to the right | - | Component Connector End Views |
| Courtesy/Reading Lamp - Center | In the middle of the headliner above the 2nd row seats | - | Component Connector End Views |
| Courtesy/Reading Lamp - Front | In the middle of the headliner above the front seats | - | Component Connector End Views |
| Crankshaft Position (CKP) Sensor (4.2L) | At the left rear of the engine block below the starter | - | Component Connector End Views |
| Crankshaft Position (CKP) Sensor (5.3L/6.0L) | At the right rear of the engine, adjacent to the starter | - | Component Connector End Views |
| Data Link Connector (DLC) | Below the I/P above the accelerator pedal | - | Component Connector End Views |
| Defrost Actuator | On the cowl side of the upper I/P carrier | - | Component Connector End Views |
| Digital Radio Receiver (U2K) | Right side dash area, behind the glove box | - | Component Connector End Views |
| Digital Video Disc (DVD) Player (U42) | In the upper console | - | Component Connector End Views |
| Door Latch Assembly - Driver | In the left front door | - | Component Connector End Views |
| Door Latch Assembly - LR | In the left rear door | - | Component Connector End Views |
| Door Latch Assembly - Passenger | In the right front door | - | Component Connector End Views |
| Door Latch Assembly - RR | In the right rear door | - | Component Connector End Views |
| Driver Door Module (DDM) | Attached to the lower part of the driver door switch panel | - | Component Connector End Views |
| Electronic Adjustable Pedals (EAP) Assembly (JF4) | On the pedals assembly | - | Component Connector End Views |
| Electronic Adjustable Pedals (EAP) Relay (JF4) | Behind the lower left of the I/P taped to the harness | - | Component Connector End Views |
| Electronic Adjustable Pedals (EAP) Switch (JF4) | On the steering column | - | Component Connector End Views |
| Electronic Brake Control Module (EBCM) | On the inner left frame rail, adjacent to the transmission | - | Component Connector End Views |
| Electronic Frontal Sensor (EFS) - Left | On the left side of the frame at the front of the vehicle | - | Component Connector End Views |
| Electronic Frontal Sensor (EFS) - Right | On the right side of the frame at the front of the vehicle | - | Component Connector End Views |
| Engine Control Module (ECM) (5.3L/6.0L) | Near the lower left front of the engine | - | Component Connector End Views |
| Engine Coolant Temperature (ECT) Sensor (4.2L) | On the lower right rear of the engine block | - | Component Connector End Views |
| Engine Coolant Temperature (ECT) Sensor (5.3L/6.0L) | On the left front of the engine, near the generator | - | Component Connector End Views |
| Engine Oil Pressure (EOP) Sensor (5.3L/6.0L) | At the top and rear of the engine block | - | Component Connector End Views |
| Engine Oil Pressure (EOP) Switch (4.2L) | At the lower right of the engine block, near the oil filter | - | Component Connector End Views |
| Evaporative Emission (EVAP) Canister Purge Solenoid (4.2L) | On the left side of the engine block | - | Component Connector End Views |
| Evaporative Emission (EVAP) Canister Purge Solenoid (5.3L/6.0L) | On top of the engine, toward the front | - | Component Connector End Views |
| Evaporative Emission (EVAP) Canister Vent Solenoid | At the right rear of the fuel tank | - | Component Connector End Views |
| Fog Lamp - Left Front (T96) | In the left side of the front bumper | - | Component Connector End Views |
| Fog Lamp - Right Front (T96) | In the right side of the front bumper | - | Component Connector End Views |
| Front Axle Actuator (NP8) | On the inner flange of the right front axle | - | Component Connector End Views |
| Front Passenger Door Module (FPDM) | Attached to the lower part of the passenger door switch panel | - | Component Connector End Views |
| Fuel Injector 1 (4.2L) | On the left side of the engine attached to the fuel rail at the number 1 cylinder | - | Component Connector End Views |
| Fuel Injector 1 (5.3L/6.0L) | On the left side of the intake manifold attached to the fuel rail at the number 1 cylinder | - | Component Connector End Views |
| Fuel Injector 2 (4.2L) | On the left side of the engine attached to the fuel rail at the number 2 cylinder | - | Component Connector End Views |
| Fuel Injector 2 (5.3L/6.0L) | On the right side of the intake manifold attached to the fuel rail at the number 2 cylinder | - | Component Connector End Views |
| Fuel Injector 3 (4.2L) | On the left side of the engine attached to the fuel rail at the number 3 cylinder | - | Component Connector End Views |
| Fuel Injector 3 (5.3L/6.0L) | On the left side of the intake manifold attached to the fuel rail at the number 3 cylinder | - | Component Connector End Views |
| Fuel Injector 4 (4.2L) | On the left side of the engine attached to the fuel rail at the number 4 cylinder | - | Component Connector End Views |
| Fuel Injector 4 (5.3L/6.0L) | On the right side of the intake manifold attached to the fuel rail at the number 4 cylinder | - | Component Connector End Views |
| Fuel Injector 5 (4.2L) | On the left side of the engine attached to the fuel rail at the number 5 cylinder | - | Component Connector End Views |
| Fuel Injector 5 (5.3L/6.0L) | On the left side of the intake manifold attached to the fuel rail at the number 5 cylinder | - | Component Connector End Views |
| Fuel Injector 6 (4.2L) | On the left side of the engine attached to the fuel rail at the number 6 cylinder | - | Component Connector End Views |
| Fuel Injector 6 (5.3L/6.0L) | On the right side of the intake manifold attached to the fuel rail at the number 6 cylinder | - | Component Connector End Views |
| Fuel Injector 7 (5.3L/6.0L) | On the left side of the intake manifold attached to the fuel rail at the number 7 cylinder | - | Component Connector End Views |
| Fuel Injector 8 (5.3L/6.0L) | On the right side of the intake manifold attached to the fuel rail at the number 8 cylinder | - | Component Connector End Views |
| Fuel Pump and Sender Assembly | Mounted on top of the fuel tank | - | Component Connector End Views |
| Fuel Tank Pressure (FTP) Sensor | At the top left rear of the fuel tank | - | Component Connector End Views |
| Fuse Block - Rear | Beneath the left rear seat | - | Component Connector End Views |
| Fuse Block - Underhood | In the underhood compartment, above the left front wheel well | - | Component Connector End Views |
| Fusible Link 1 (4.2L) | In the engine harness, near the positive battery terminal | - | - |
| Fusible Link 1 (5.3L/6.0L) | In the battery cable harness, near the positive battery terminal | - | - |
| Garage Door Opener (UG1) | In the overhead console | - | Component Connector End Views |
| Generator | At the left front of the engine | - | Component Connector End Views |
| Headlamp - High Beam - Left | Inside the left headlamp | - | Component Connector End Views |
| Headlamp - High Beam - Right | Inside the right headlamp | - | Component Connector End Views |
| Headlamp - Low Beam - Left | Inside the left headlamp | - | Component Connector End Views |
| Headlamp - Low Beam - Right | Inside the right headlamp | - | Component Connector End Views |
| Headlamp Leveling Actuator - Left (TR6) | Behind the left headlamp | - | Component Connector End Views |
| Headlamp Leveling Actuator - Right (TR6) | Behind the right headlamp | - | Component Connector End Views |
| Headlamp Switch | On the left side of the I/P | - | Component Connector End Views |
| Headlamp Washer Fluid Pump (CE4) | Attached to the washer fluid reservoir at the right front of the engine | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Sensor 1 (4.2L) | On the exhaust manifold on the right side of the engine | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Sensor 2 (4.2L) | In the exhaust pipe, adjacent to the transmission | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (5.3L/6.0L) | In the left bank exhaust pipe, ahead of the catalytic converter | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (5.3L/6.0L) | In the left bank exhaust pipe, behind the catalytic converter | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (5.3L/6.0L) | In the right bank exhaust pipe, ahead of the catalytic converter | - | Component Connector End Views |
| Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (5.3L/6.0L) | In the right bank exhaust pipe, behind the catalytic converter | - | Component Connector End Views |
| Heated Seat Element - Driver Back (w/Heat) | Behind the upholstery in the seat back | - | Component Connector End Views |
| Heated Seat Element - Driver Cushion (w/Heat) | Under the upholstery in the seat cushion | - | Component Connector End Views |
| Heated Seat Element - Passenger Back (w/Heat) | Behind the upholstery in the seat back | - | Component Connector End Views |
| Heated Seat Element - Passenger Cushion (w/Heat) | Under the upholstery in the seat cushion | - | Component Connector End Views |
| Heated Seat Switch - Driver (w/Heat) | Part of the driver door module (DDM) | - | - |
| Heated Seat Switch - Passenger (w/Heat) | Part of the front passenger door module (FPDM) | - | - |
| Hood Ajar Switch (UA2) | On the upper left of the radiator support | - | Component Connector End Views |
| Horn Assembly | In the lower left front of the underhood compartment | - | Component Connector End Views |
| Horn Switch | In the steering wheel | - | - |
| HVAC Control Module | In the I/P center trim panel, beneath the radio | - | Component Connector End Views |
| HVAC Control Module - Auxiliary | At the rear of the lower console | - | Component Connector End Views |
| Ignition Coil 1 (4.2L) | Mounted on the camshaft cover on top of the number 1 cylinder | - | Component Connector End Views |
| Ignition Coil 1 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 1 cylinder | - | Component Connector End Views |
| Ignition Coil 2 (4.2L) | Mounted on the camshaft cover on top of the number 2 cylinder | - | Component Connector End Views |
| Ignition Coil 2 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 2 cylinder | - | Component Connector End Views |
| Ignition Coil 3 (4.2L) | Mounted on the camshaft cover on top of the number 3 cylinder | - | Component Connector End Views |
| Ignition Coil 3 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 3 cylinder | - | Component Connector End Views |
| Ignition Coil 4 (4.2L) | Mounted on the camshaft cover on top of the number 4 cylinder | - | Component Connector End Views |
| Ignition Coil 4 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 4 cylinder | - | Component Connector End Views |
| Ignition Coil 5 (4.2L) | Mounted on the camshaft cover on top of the number 5 cylinder | - | Component Connector End Views |
| Ignition Coil 5 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 5 cylinder | - | Component Connector End Views |
| Ignition Coil 6 (4.2L) | Mounted on the camshaft cover on top of the number 6 cylinder | - | Component Connector End Views |
| Ignition Coil 6 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 6 cylinder | - | Component Connector End Views |
| Ignition Coil 7 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 7 cylinder | - | Component Connector End Views |
| Ignition Coil 8 (5.3L/6.0L) | Attached to the valve rocker arm cover near the number 8 cylinder | - | Component Connector End Views |
| Ignition Key Alarm Switch | In the steering column near the ignition lock | - | - |
| Ignition Lock Cylinder Control Actuator | In the upper steering column near the ignition lock | - | Component Connector End Views |
| Ignition Switch | On the right side of the steering column | - | Component Connector End Views |
| Inclination Sensor (BAE) | Under the right rear seat | - | Component Connector End Views |
| Inflatable Restraint Front Passenger Presence System (PPS) Module | Under the passenger seat | - | Component Connector End Views |
| Inflatable Restraint Front Passenger Presence System (PPS) Sensor | Under the passenger seat | - | Component Connector End Views |
| Inflatable Restraint I/P Module | In the I/P above the I/P compartment | - | Component Connector End Views |
| Inflatable Restraint Passenger Seat Belt Tension Retractor Sensor | Below the right rear of the passenger seat | - | Component Connector End Views |
| Inflatable Restraint Roof Rail Module - Left (ASF) | In the roof above the driver door | - | Component Connector End Views |
| Inflatable Restraint Roof Rail Module - Right (ASF) | In the roof above the front passenger door | - | Component Connector End Views |
| Inflatable Restraint Seat Position Sensor (SPS) - Left | On the left front outboard seat track | - | Component Connector End Views |
| Inflatable Restraint Seat Position Sensor (SPS) - Right | On the right front outboard seat track | - | Component Connector End Views |
| Inflatable Restraint Sensing and Diagnostic Module (SDM) | Beneath the lower console | - | Component Connector End Views |
| Inflatable Restraint Side Impact Sensor (SIS) - Left (ASF) | In the left front door | - | Component Connector End Views |
| Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) | In the right front door | - | Component Connector End Views |
| Inflatable Restraint Steering Wheel Module | In the center hub of the steering wheel | - | Component Connector End Views |
| Inflatable Restraint Steering Wheel Module Coil | In the steering column | - | - |
| Input Speed Sensor (ISS) (5.3L/6.0L) | Inside the automatic transmission | - | Component Connector End Views |
| Inside Rearview Mirror | Mounted on the inside center of the windshield | - | Component Connector End Views |
| Instrument Panel Cluster (IPC) | On the left side of the I/P, above the steering column | - | Component Connector End Views |
| Intrusion Sensor 1 (BAE) | Part of export theft deterrent option BAE, dealer installed | - | - |
| Intrusion Sensor 2 (BAE) | Part of export theft deterrent option BAE, dealer installed | - | - |
| Intrusion Sensor Disable Switch (BAE) | Part of export theft deterrent option BAE, dealer installed | - | - |
| Knock Sensor (KS) 1 Front (4.2L) | On the left side of the engine block, behind the A/C compressor | - | Component Connector End Views |
| Knock Sensor (KS) 1 Left (5.3L/6.0L) | On the lower left side of the engine block | - | Component Connector End Views |
| Knock Sensor (KS) 2 Rear (4.2L) | On the left side of the engine block, below the starter motor | - | Component Connector End Views |
| Knock Sensor (KS) 2 Right (5.3L/6.0L) | On the lower right side of the engine block | - | Component Connector End Views |
| License Lamp - Left | Above the rear license plate | - | Component Connector End Views |
| License Lamp - Right | Above the rear license plate | - | Component Connector End Views |
| Liftgate Latch Assembly | Inside the lower liftgate | - | Component Connector End Views |
| Liftgate Module (LGM) | Inside the liftgate | - | Component Connector End Views |
| Liftglass Ajar Switch | At the bottom of the liftglass, toward the middle | - | Component Connector End Views |
| Lumbar Adjuster Switch - Driver (AR9) | On the lower seat, on the side toward the LF door | - | Component Connector End Views |
| Lumbar Adjuster Switch - Passenger (V40) | On the lower seat on the side toward the RF door | - | Component Connector End Views |
| Lumbar Horizontal Motor - Driver (AR9) | In the driver seat back | - | Component Connector End Views |
| Lumbar Horizontal Motor - Passenger (V40) | In the passenger seat back | - | Component Connector End Views |
| Lumbar Horizontal Position Sensor - Driver (w/Memory) | In the driver seat back | - | Component Connector End Views |
| Manifold Absolute Pressure (MAP) Sensor (4.2L) | Top left of the engine | - | Component Connector End Views |
| Manifold Absolute Pressure (MAP) Sensor (5.3L/6.0L) | On top of the engine | - | Component Connector End Views |
| Marker Lamp - Left Front | To the left of the left headlamp | - | Component Connector End Views |
| Marker Lamp - Right Front | To the right of the right headlamp | - | Component Connector End Views |
| Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor | In the intake air duct | - | Component Connector End Views |
| Memory Seat Module - Driver (w/Memory) | Mounted to the underside of the seat | - | Component Connector End Views |
| Memory Seat Switch - Driver (w/Memory) | Part of the driver door module (DDM) | - | Component Connector End Views |
| Mode Actuator | Behind the I/P, to the left of the I/P center support | - | Component Connector End Views |
| Outside Rearview Mirror - Driver | Mounted on the outside of the driver door | - | Component Connector End Views |
| Outside Rearview Mirror - Passenger | Mounted on the outside of the passenger door | - | Component Connector End Views |
| Outside Rearview Mirror Switch | On the interior panel of the LF door | - | Component Connector End Views |
| Park Brake Switch | On the park brake assembly | - | Component Connector End Views |
| Park Lamp - Left Front (W49) | Above the left headlamp | - | Component Connector End Views |
| Park Lamp - Right Front (W49) | Above the right headlamp | - | Component Connector End Views |
| Park/Neutral Position (PNP) Switch | On the lower left side of the transmission | - | Component Connector End Views |
| Park/Turn Signal Lamp - Left Front (X88) | Below the left headlamp | - | Component Connector End Views |
| Park/Turn Signal Lamp - Left Front (Z88/Z89) | To the left of the left headlamp | - | Component Connector End Views |
| Park/Turn Signal Lamp - Right Front (X88) | Below the right headlamp | - | Component Connector End Views |
| Park/Turn Signal Lamp - Right Front (Z88/Z89) | To the right of the right headlamp | - | Component Connector End Views |
| Passlock Sensor (w/o BAE) | In the steering column | - | Component Connector End Views |
| Powertrain Control Module (PCM) (4.2L) | Mounted to the upper left of the engine | - | Component Connector End Views |
| Pressure Control (PC) Solenoid Valve | Inside the automatic transmission | - | Component Connector End Views |
| Propshaft Speed Sensor - Front (NP4/NP8) | On the LF of the transfer case | - | Component Connector End Views |
| Propshaft Speed Sensor - Rear (NP4/NP8) | On the RR of the transfer case | - | Component Connector End Views |
| Radio | In the center of the I/P | - | Component Connector End Views |
| Rear Blower Motor (CJ2) | Below the center of the I/P, in front of the center console | - | Component Connector End Views |
| Rear Blower Resistor (CJ2) | Below the center of the I/P, in front of the center console | - | Component Connector End Views |
| Rear Window Defogger Grid (C49) | On the inside of the rear window | - | Component Connector End Views |
| Rear Window Washer Fluid Pump | Attached to the fluid reservoir in the underhood compartment | - | Component Connector End Views |
| Rear Window Wiper Motor | Inside the tailgate | - | Component Connector End Views |
| Rear Window Wiper/Washer Switch | In the center of the I/P | - | Component Connector End Views |
| Recirculation Actuator | Above the blower motor, on the right side of the I/P carrier | - | Component Connector End Views |
| Regulated Voltage Control Module | Behind the battery, between the positive and negative terminals | - | Component Connector End Views |
| Rollover Sensor | In the middle of the rear floor, under the carpet | - | Component Connector End Views |
| Seat Adjuster Switch - Driver (AR9) | On the lower seat on the side toward the left front door | - | Component Connector End Views |
| Seat Adjuster Switch - Passenger (V40) | On the lower seat on the side toward the right front door | - | Component Connector End Views |
| Seat Belt Buckle - Driver | To the right of the driver seat | - | Component Connector End Views |
| Seat Belt Buckle - Passenger | To the left of the passenger seat | - | Component Connector End Views |
| Seat Belt Pretensioner - Left | Part of the left seat belt retractor | - | Component Connector End Views |
| Seat Belt Pretensioner - Right | Part of the right seat belt retractor | - | Component Connector End Views |
| Seat Front Vertical Motor - Driver (AR9) | Under the driver seat | - | Component Connector End Views |
| Seat Front Vertical Motor - Passenger (V40) | Under the passenger seat | - | Component Connector End Views |
| Seat Horizontal Motor - Driver (AR9) | Under the driver seat | - | Component Connector End Views |
| Seat Horizontal Motor - Passenger (V40) | Under the passenger seat | - | Component Connector End Views |
| Seat Position Sensor - Front (w/Memory) | Under the driver seat | - | Component Connector End Views |
| Seat Position Sensor - Horizontal (w/Memory) | Under the driver seat | - | Component Connector End Views |
| Seat Position Sensor - Rear (w/Memory) | Under the driver seat | - | Component Connector End Views |
| Seat Position Sensor - Recline (w/Memory) | Under the driver seat | - | Component Connector End Views |
| Seat Rear Vertical Motor - Driver (AR9) | Under the driver seat | - | Component Connector End Views |
| Seat Rear Vertical Motor - Passenger (V40) | Under the passenger seat | - | Component Connector End Views |
| Seat Recline Motor - Driver (AR9) | Under the driver seat | - | Component Connector End Views |
| Seat Recline Motor - Passenger (V40) | Under the passenger seat | - | Component Connector End Views |
| Secondary Air Injection (AIR) Pump (4.2L w/K18) | On the left hand frame rail near G304 just behind the electronic brake control module | - | Component Connector End Views |
| Secondary Air Injection (AIR) Pump Relay (4.2L w/K18) | On the left hand frame rail near G304 just behind the electronic brake control module | - | Component Connector End Views |
| Secondary Air Injection (AIR) Solenoid (4.2L w/K18) | On the right side of the engine, next the transmission dipstick | - | Component Connector End Views |
| Speaker - Left Front Door (w/UQA) | Inside the LF door | - | Component Connector End Views |
| Speaker - Left Front Door (w/o UQA) | Part of the LF door speaker assembly | - | - |
| Speaker - Left Front Door Tweeter (w/o UQA) | Part of the LF door speaker assembly | - | - |
| Speaker - Left Front I/P (UQA) | Under the left side of the I/P upper trim panel | - | Component Connector End Views |
| Speaker - Left Rear Door | Inside the LR door | - | Component Connector End Views |
| Speaker - Right Front Door (w/UQA) | Inside the RF door | - | Component Connector End Views |
| Speaker - Right Front Door (w/o UQA) | Part of the RF door speaker assembly | - | - |
| Speaker - Right Front Door Tweeter (w/o UQA) | Part of the RF door speaker assembly | - | - |
| Speaker - Right Front I/P (UQA) | Under the right side of the I/P upper trim panel | - | Component Connector End Views |
| Speaker - Right Rear Door | Inside the RR door | - | Component Connector End Views |
| Speaker Assembly - Left Front Door (w/o UQA) | Inside the LF door | - | Component Connector End Views |
| Speaker Assembly - Right Front Door (w/o UQA) | Inside the RF door | - | Component Connector End Views |
| Starter | On the left side of the engine | - | - |
| Steering Wheel Control Switch Assembly - Lower Left (STW) | On the lower left spoke of the steering wheel | - | Component Connector End Views |
| Steering Wheel Control Switch Assembly - Lower Right (STW) | On the lower right spoke of the steering wheel | - | Component Connector End Views |
| Steering Wheel Control Switch Assembly - Upper Left (STW) | On the upper left spoke of the steering wheel | - | Component Connector End Views |
| Steering Wheel Control Switch Assembly - Upper Right (STW) | On the upper right spoke of the steering wheel | - | Component Connector End Views |
| Steering Wheel Speed/Position Sensor | At the base of the steering column | - | Component Connector End Views |
| Stop Lamp Switch | Above the brake pedal assembly | - | Component Connector End Views |
| Sunroof Motor (CF5) | Above the headliner at the rear of the sunroof | - | Component Connector End Views |
| Sunroof Switch (CF5) | In the upper console | - | Component Connector End Views |
| Tail Lamp Circuit Board - Left | At the left rear of the vehicle | - | Component Connector End Views |
| Tail Lamp Circuit Board - Right | At the right rear of the vehicle | - | Component Connector End Views |
| Theft Deterrent Alarm (BAE) | Attached to the rear frame above the spare tire | - | Component Connector End Views |
| Theft Deterrent Control Module (BAE) | In the steering column surrounding the lock cylinder | - | Component Connector End Views |
| Throttle Body | Front of the intake at the top of the engine | - | Component Connector End Views |
| Torque Converter Clutch (TCC) Solenoid Valve | Inside the automatic transmission | - | Component Connector End Views |
| Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve | Inside the automatic transmission | - | Component Connector End Views |
| Traction Control Switch | On the floor shift control knob | - | Component Connector End Views |
| Trailer Connector (UY7) | Below the center of the rear bumper | - | Component Connector End Views |
| Transfer Case Encoder Motor (NP4/NP8) | Part of the transfer case | - | Component Connector End Views |
| Transfer Case Shift Control Module (NP4/NP8) | Behind the left lower I/P | - | Component Connector End Views |
| Transfer Case Shift Control Switch (NP8) | In the center of the I/P | - | Component Connector End Views |
| Transmission Control Module (TCM) (5.3L/6.0L) | Near the lower left front of the engine | - | Component Connector End Views |
| Turn Signal Lamp - Left Front (W49) | Below the left headlamp | - | Component Connector End Views |
| Turn Signal Lamp - Right Front (W49) | Below the right headlamp | - | Component Connector End Views |
| Turn Signal/Hazard Flasher Module | Behind the I/P near the headlamp switch | - | Component Connector End Views |
| Turn Signal/Multifunction Switch | On the left side of the steering column | - | Component Connector End Views |
| Valve Lifter Oil Manifold (VLOM) Assembly (5.3L) | At the top rear of the engine | - | Component Connector End Views |
| Vanity Mirror Lamp - Left (DH2) | In the left sunshade | - | Component Connector End Views |
| Vanity Mirror Lamp - Right (DH2) | In the right sunshade | - | Component Connector End Views |
| Vehicle Communication Interface Module (VCIM) (UE1) | Under the right rear seat | - | Component Connector End Views |
| Vehicle Speed Sensor (VSS) | Attached to the output shaft at the LR of the transfer case | - | Component Connector End Views |
| Wheel Speed Sensor (WSS) - Left Front | Attached to the left front wheel hub | - | Component Connector End Views |
| Wheel Speed Sensor (WSS) - Left Rear | Attached to the left rear wheel hub | - | Component Connector End Views |
| Wheel Speed Sensor (WSS) - Right Front | Attached to the right front wheel hub | - | Component Connector End Views |
| Wheel Speed Sensor (WSS) - Right Rear | Attached to the right rear wheel hub | - | Component Connector End Views |
| Window Motor - Driver | Inside the left front door | - | Component Connector End Views |
| Window Motor - Front Passenger | Inside the right front door | - | Component Connector End Views |
| Window Motor - Left Rear | Inside the left rear door | - | Component Connector End Views |
| Window Motor - Right Rear | Inside the right rear door | - | Component Connector End Views |
| Window Switch - Left Rear | Mounted on the interior side of the left rear door | - | Component Connector End Views |
| Window Switch - Right Rear | Mounted on the interior side of the right rear door | - | Component Connector End Views |
| Windshield Washer Fluid Level Switch (U68) | Mounted on the fluid reservoir in the underhood compartment | - | Component Connector End Views |
| Windshield Washer Fluid Pump | Mounted on the fluid reservoir in the underhood compartment | - | Component Connector End Views |
| Windshield Wiper Motor | In the underhood compartment, mounted on the cowl | - | Component Connector End Views |
| Yaw Rate and Lateral Acceleration Sensor | On the floor, below the passenger seat | - | Component Connector End Views |
| X100 (4.2L) (12 cavities) |
I/P harness to the engine harness, in the underhood compartment, to the left of the engine, | - | - |
| X101 (38 cavities) |
Chassis Harness to I/P harness, in the underhood compartment, to the right of the underhood fuse block | - | - |
| X102 (4 cavities) | Forward lamp harness to the left headlamp, behind the left headlamp | - | - |
| X103 (4 cavities) | Forward lamp harness to the right headlamp, behind the right headlamp | - | - |
| X104 (4.2L) (8 cavities) |
Engine harness to the fuel injector harness, at the rear of the engine block near coil #6 | - | - |
| X105 (10 cavities) |
Forward lamp harness to the I/P harness, underhood compartment, near the underhood fuse block | - | - |
| X106 (BAE) (2 Cavities) |
I/P harness to the chassis harness | - | - |
| X107 (5.3L/6.0L) (38 cavities) |
Engine harness to the I/P harness, in the underhood compartment, to the left of the engine near C101 | - | - |
| X108 (5.3L/6.0L) (8 cavities) |
Engine harness to the ignition coil harness, on top of the right bank valve cover | - | - |
| X109 (5.3L/6.0L) (8 cavities) |
Engine harness to the ignition coil harness, on top of the left bank valve cover | - | - |
| X110 (5.3L/6.0L) (3 cavities) |
Engine harness to the camshaft position sensor jumper harness, left front of the engine block, below the camshaft position sensor | - | - |
| X111 (6 cavities) |
I/P harness to the body harness, under the carpet in the rear floor area, neat the breakout to C304 | - | - |
| X118 (6 cavities) | Forward lamp harness to the cooling fan tether harness, on the upper left of the fan shroud | - | - |
| X175 (20 cavities) |
Engine harness to the automatic transmission harness, in the automatic transmission | - | - |
| X201 (48 cavities) |
Steering column harness to the I/P harness, at the base of the steering column | - | - |
| X202 (4 cavities) |
Body harness to the I/P harness, lower right side of the I/P | - | - |
| X203 (4 cavities) |
Body harness to the I/P harness, lower right side of the I/P | - | - |
| X204 (CJ2) (4 cavities) |
I/P harness to the auxiliary blower motor harness, below the center of the I/P, in front of the center console | - | - |
| X220 (U42) (6 cavities) |
Infotainment jumper harness to the body harness, lower right side of the I/P | - | - |
| X221 (U42/U2K) (8 cavities) |
Infotainment jumper harness to I/P harness, lower right side of the I/P | - | - |
| X225 (JF4) (10 cavities) |
I/P harness to the electronic adjustable pedal assembly harness, underneath the driver side dash area | - | - |
| X275 (4 cavities) |
Steering column harness to the I/P harness | - | - |
| X277 (STW) (8 cavities) |
Steering column harness to the steering wheel harness, behind the inflatable restraint steering wheel module | - | - |
| X300 (8 cavities) |
I/P harness to the floor shift control harness, on the right of the floor shift control | - | - |
| X304 (40 cavities) |
Body harness to the I/P harness, under the carpet in the rear floor area | - | - |
| X305 (16 cavities) |
Headliner harness to the overhead console harness, inside the upper console | - | - |
| X306 (UE1/U42) (16 cavities) |
Headliner harness to the body harness, under the carpet in the rear floor area | - | - |
| X307 (18 cavities) |
Floor console harness to the I/P harness, under the lower console at the rear | - | - |
| X308 (CF5) (6 cavities) |
Headliner harness to the sunroof harness, above the left rear door | - | - |
| X310 (4WD) (2 cavities) |
Engine harness to the chassis harness, near the forward part of the transfer case | - | - |
| X311 (A50) (4 cavities) |
Body harness to the driver seat harness, lower front of the driver seat | - | - |
| X311 (AR9) (18 cavities) |
Body harness to the driver seat harness, lower front of the driver seat | - | - |
| X314 (16 cavities) |
Body harness to the passenger seat harness, lower front of the passenger seat | - | - |
| X317 (2 cavities) |
Body harness to the left seat belt harness, under the driver seat pretensioner | - | - |
| X318 (2 cavities) |
Body harness to the right seat belt harness, under the passenger seat pretensioner | - | - |
| X500 (12 cavities) |
Left front door harness to the body harness, at the midpoint of the leading edge of the door | - | - |
| X600 (12 cavities) |
Right front door harness to the body harness, at the midpoint of the leading edge of the door | - | - |
| X700 (17 cavities) |
Body harness to the left rear door harness, at the midpoint of the leading edge of the door | - | - |
| X800 (17 cavities) |
Body harness to the right rear door harness, at the midpoint of the leading edge of the door | - | - |
| X900 (6 cavities) |
Body harness to the liftgate harness, at the top of the liftgate | - | - |
| X901 (2 cavities) |
Liftgate harness to the license lamp harness, inside the liftgate | - | - |
| X904 (C49) (1 cavity) |
Rear defogger harness to the liftgate harness, at the top left of the liftglass | - | - |
| X905 (C49) (1 cavity) |
Rear defogger harness to the liftgate harness, at the top right of the liftglass | - | - |
| G101 | Left side of the underhood compartment near the front of the underhood fuse block | - | - |
| G102 | Left side of the underhood compartment near the rear of the underhood fuse block | - | - |
| G103 | On the right side of the engine compartment, just above the right wheel well | - | - |
| G104 | On the underside of the hood, near the underhood compartment lamp | - | - |
| G105 | In the underhood compartment, on the cowl near the instrument harness pass-through grommet | - | - |
| G106 (5.3L/6.0L) | On the engine side of the left front wheel well | - | - |
| G107 (4.2L) | On the lower left side of the engine block | - | - |
| G107 (5.3L/6.0L) | Lower left side of the engine block, toward the rear | - | - |
| G108 (4.2L) | On the lower left side of the engine block | - | - |
| G108 (5.3L/6.0L) | On the lower left side of the engine block | - | - |
| G109 (4.2L) | On the lower left side of the engine block | - | - |
| G109 (5.3L/6.0L) | Upper right side of the engine block | - | - |
| G110 (4.2L) | On the lower left side of the engine block | - | - |
| G110 (5.3L/6.0L) | On the forward left side of the engine block near the engine coolant temperature sensor | - | - |
| G201 | Ground splice pack near the right front of the lower console | - | - |
| G302 | On the lower left B-pillar | - | - |
| G303 | On the lower right B-pillar | - | - |
| G304 | On the outside of the left frame rail, near the electronic brake control module | - | - |
| G305 | On the outside of the left frame rail, near the fuel tank | - | - |
| G306 (CF5) | On the body panel to the rear of the left rear door | - | - |
| G401 | On the lower left D-pillar | - | - |
| G402 | On the lower right D-pillar | - | - |
| G403 | On the left side of the rear frame crossmember | - | - |
| J100 (5.3L/6.0L) | (CKT 1239) In the engine harness, 10 cm (3.94 in) from the breakout to the ECM towards C107 | - | - |
| J101 (4.2L) | (CKT 450) In the engine harness, 15 cm (5.91 in) from the breakout to the PCM towards the breakout to C100 | - | - |
| J101 (5.3L/6.0L) | (CKT 450) In the engine harness, 4 cm (1.57 in) from the breakout to C107 and the fuse block - underhood towards the ECM | - | - |
| J102 (5.3L/6.0L) | (CKT 1339) In the engine harness, 22 cm (8.7 in) before the breakout to the MAP sensor towards the right side fuel injectors | - | - |
| J103 | (CKT 250) In the forward lamp harness, 8 cm (3.15 in) from the rear washer pump motor breakout, toward the right turn signal breakout | - | - |
| J104 (W49) | (CKT 2309) In the forward lamps harness, 6 cm (2.36 in) before the breakout to the right side marker, cornering, and park lamps | - | - |
| J105 (5.3L/6.0L) | (CKT 1320) In the engine harness, 10 cm (3.94 in) from the breakout to C107 and the fuse block - underhood towards the ECM | - | - |
| J106 (W49) | (CKT 2309) In the forward lamps harness, 5.5 cm (2.17 in) before the breakout to the left side marker, cornering, and park lamps | - | - |
| J107 | (CKT 350) In the forward lamp harness, 9 cm (3.54 in) from the breakout to the left front fog lamp toward the left headlamp | - | - |
| J108 (5.3L/6.0L) | (CKT 39) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C108 toward ignition coil 2 | - | - |
| J109 (5.3L/6.0L) | (CKT 39) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C109 toward ignition coil 7 | - | - |
| JS111 (4.2L) | (CKT 439) In the fuel injector harness | - | - |
| J112 (5.3L) | (CKT 239) In the engine harness, 5 cm (1.97 in) from the breakout to C109 toward the EVAP canister purge solenoid | - | - |
| J113 | (CKT 250) In the forward lamp harness, 19.5 cm (7.68 in) from the windshield washer fluid pump breakout, toward the engine cooling fan breakout | - | - |
| J115 (4.2L) | (CKT 23) In the engine harness, 5.5 cm (2.17 in) from the breakout to the PCM toward the breakout to the underhood fuse block | - | - |
| J115 (5.3L/6.0L) | (CKT 23) In the engine harness, 15 cm (5.91 in) from the breakout to the underhood fuse block toward the breakout to the ECM | - | - |
| J117 | (CKT 817) In the I/P harness, 8.5 cm (3.35 in) from C100 breakout, toward the breakout for the fuse block - underhood connectors C5 and C6 | - | - |
| J118 (5.3L/6.0L) | (CKT 2129) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C108 toward ignition coil 8 | - | - |
| J119 (5.3L/6.0L) | (CKT 2129) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C109 toward ignition coil 9 | - | - |
| J128 (5.3L/6.0L) | (CKT 151) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C108 toward ignition coil 2 | - | - |
| J129 (5.3L/6.0L) | (CKT 151) In the ignition coil jumper harness, 5 cm (1.97 in) from the breakout to C109 toward ignition coil 7 | - | - |
| JS133 | (CKT 839) In the automatic transmission | - | - |
| J134 (5.3L/6.0L) | (CKT 839) In the automatic transmission | - | - |
| J201 (CJ3) | (CKT 2250) In the I/P harness, 4 cm (1.57 in) from the breakout to the inflatable restraint I/P module toward the blower motor resistor assembly | - | - |
| J202 | (CKT 751,1573, 1705, 2099) In the I/P harness, 16.5 cm (6.5 in) from the steering column connector breakout toward the DLC breakout | - | - |
| J203 | (CKT 2306) In the I/P harness, 5 cm (1.97 in) from the breakout to the rollover sensor toward the SDM | - | - |
| J205 | (CKT 1850) In the chassis harness, 8 cm (3.15 in) from the breakout to the electronic brake control module | - | - |
| J206 | (CKT 1038) In the I/P harness, 7.5 cm (2.95 in) from the breakout to the headlamp switch toward the breakout to C201 | - | - |
| J207 (5.3L/6.0L) | (CKT 6105) In the I/P harness, 13 cm (5.12 in) from the data link connector, on the breakout | - | - |
| J208 (5.3L/6.0L) | (CKT 6106) In the I/P harness, 7 cm (2.76 in) from the data link connector, on the breakout | - | - |
| J211 | (CKT 2250) In the I/P harness, 16 cm (6.3 in) from the SP201 breakout, toward the DLC | - | - |
| J216 | (CKT 1688) In the I/P harness, 15.5 cm (6.1 in) from the recirculation actuator connector toward the main I/P harness | - | - |
| J217 | (CKT 1791) In the I/P harness, 5 cm (1.97 in) from the mode motor breakout toward the I/P cluster breakout | - | - |
| J220 | (CKT 1139) In the I/P harness, 33.5 cm (13.18 in) before the breakout to the inflatable restraint sensing and diagnostic module towards C304 | - | - |
| J226 | (CKT 2250) In the steering column harness | - | - |
| J227 | (CKT 751) In the steering column harness | - | - |
| J230 | (CKT 230) In the I/P harness, 5 cm (1.97 in) from the SP201 breakout, toward the I/P auxiliary power breakout | - | - |
| J232 (BAE) | (CKT 1132) In the I/P harness, 10 cm (3.94 in) from the breakout to the steering wheel coils, toward the shift control module | - | - |
| J239 | (CKT 639) In the I/P harness, above the I/P left lower panel, 11 cm (4.33 in) from the steering column connector breakout toward the DLC | - | - |
| J250 (CJ3) | (CKT 542) In the I/P harness, 33 cm (12.99 in) from the blower motor resistor assembly | - | - |
| J271 (CJ2) | (CKT 718) In the I/P harness, 14.5 cm (5.71 in) from the I/P compartment lamp breakout, toward the center of the I/P | - | - |
| J302 | (CKT 1350) In the body harness 5 cm (1.97 in) from the main harness breakout for C700, toward G302 | - | - |
| J303 | (CKT 1450) In the body harness, 5 cm (1.97 in) from the main harness breakout for C800, toward G303 | - | - |
| J304 (w/Memory) | (CKT 5287) In the driver seat main power harness, 5 cm (1.97 in) from the breakout memory seat module connector C1, towards C312 | - | - |
| J305 (w/Memory) | (CKT 5288) In the driver seat main power harness, 7 cm (2.76 in) from the breakout memory seat module connector C1, towards C312 | - | - |
| J306 | (CKT 2450) In the chassis harness, 13 cm (5.12 in) back from the breakout to the fuel pump and sender assembly | - | - |
| J307 | (CKT 2250) In the floor console harness, 9 cm (3.54 in) from the breakout to the auxiliary mode actuator, toward the auxiliary HVAC control module | - | - |
| J308 | (CKT 2644) In the passenger seat harness, 15 cm (5.91 in) from the breakout to C314, on the breakout | - | - |
| J310 | (CKT 2644) In the body harness, 9 cm (3.54 in) from the breakout to C314, toward C800 | - | - |
| J311 (AR9) | (CKT 1350) In the driver seat main power harness, 4.5 cm (1.77 in) from the lumbar switch breakout, toward the body connector | - | - |
| J312 | (CKT 1350) In the main headliner harness, 80 cm (31.48 in) from C308 breakout, toward the front courtesy/reading lamp | - | - |
| J313 (w/Memory) | (CKT 850) Driver seat motor harness, 17 cm (6.69 in) from seat module connector C2 | - | - |
| J314 (w/Memory) | (CKT 840) In the driver seat motor harness, 24 cm (9.44 in) from seat module connector C2 | - | - |
| J315 (w/Memory) | (CKT 2644) In the driver seat harness, 11.5 cm (4.53 in) from C311, on the breakout | - | - |
| J315 (w/o Memory) | (CKT 2644) In the driver seat harness, 6.5 cm (2.56 in) from the breakout to C311, toward the seat belt switch | - | - |
| J316 (w/Heat) | (CKT 2480) In the passenger seat main power harness, 25 cm (9.84 in) back from the lumbar adjuster switch connector | - | - |
| J317 (V40 w/o Heat) | (CKT 1450) In the passenger seat main power harness, 5 cm (1.97 in) back from the breakout to the lumbar adjuster switch connector | - | - |
| J317 (V40 w/Heat) | (CKT 1450) In the passenger seat main power harness, 14.5 cm (5.71 in) back from the lumbar adjuster switch connector | - | - |
| J318 (AR9 w/o Memory) | (CKT 3540) In the driver seat harness, 7 cm (2.76 in) from the breakout for the body connector, toward the seat back connector | - | - |
| J319 (V40) | (CKT 3540) In the passenger seat harness, 7 cm (2.76 in) from the breakout for the body connector, toward the seat back connector | - | - |
| J320 | (CKT 1020) In the I/P harness, 18 cm (7.09 in) from the A/T shift lever connector breakout, toward the DLC | - | - |
| J321 (BAE) | (CKT 1140) In the I/P harness channel between the rear seat and console, 32 cm (12.59 in) forward from the C301/C304 breakout | - | - |
| J322 | (CKT 1489, 1350, 1573) In the headliner harness, 16 cm (6.3 in) from the ISRVM breakout, toward the right sunshade mirror lamp | - | - |
| J327 (w/Heat) | (CKT 2078) In the driver seat harness, 6.5 cm (2.56 in) from the breakout to the driver cushion heated seat element, toward C311 | - | - |
| J330 (UG1/CF5) | (CKT 230) In the overhead console harness | - | - |
| J331 | (CKT 1732) In the headliner harness, 17 cm (6.69 in) from the left sunshade mirror lamp breakout, toward C305 | - | - |
| J332 | (CKT 1350) In the overhead console harness | - | - |
| JS341 (U42/UG1) | (CKT 3140) In the headliner harness, 6.5 cm (2.56 in) from the breakout to the left clearance lamp, toward the left courtesy/reading lamp | - | - |
| J359 (5.3L/6.0L) | (CKT 2759) In the chassis harness, 13 cm (5.12 in) before the breakout to the fuel pump and sender assembly | - | - |
| J362 (BAE) | (CKT 5362) In the body harness channel on the rear floor, 6 cm (2.36 in) to the left of SP306 | - | - |
| J374 (BAE) | (CKT 2740) In the body harness channel on the rear floor, 12 cm (4.72 in) to the left of SP306 | - | - |
| J390 | (CKT 690) In the headliner harness, 26 cm (10.23 in) from the left front dome/reading lamp, toward the left sunshade mirror lamp | - | - |
| J401 | (CKT 1550) In the body harness, 7.5 cm (2.95 in) from G401 breakout, toward the left tail lamp | - | - |
| J402 | (CKT 1650) In the body harness, 7.5 cm (2.95 in) from the G402 breakout, toward the front of the vehicle | - | - |
| J408 (Z88) | (CKT 24) In the chassis harness, 9.5 cm (3.74 in) from the breakout to the right backup lamp, toward the air suspension compressor assembly | - | - |
| J901 | (CKT 1550) In the liftgate harness, 22 cm (8.66 in) from the liftgate module breakout, toward C900 | - | - |
| Splice Pack JX201 | On the floor beneath the I/P, near the right front of the lower console | - | - |
| Splice Pack JX205 | Behind the left I/P near the headlamp switch connector, accessible through a removable panel when the driver door is open | - | - |
| Splice Pack JX306 | In the body harness under the right rear seat beneath the carpet | - | - |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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