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.
Fuse Block - Underhood Label
2006 Chevrolet Suburban C2500, 6.0 USECTION Fuse Block - Underhood Label
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
FUSE BLOCK - UNDERHOOD FUSE AND RELAY IDENTIFICATION LEGEND
| No. | Fuse And Relay Description | Rating | Circuits |
|---|---|---|---|
| 1 | TRLR STOP RT Fuse | 10A | Trailer Wiring, Auxiliary Body Control Module (XBCM) (EXP) |
| 2 | ESC/ALC EXH Fuse | 30A | Automatic Level Control (ALC) Compressor (G69), Electronic Suspension Control (ESC) Module (Z55) |
| 3 | TRLR STOP LT Fuse | 10A | Trailer Wiring, Auxiliary Body Control Module (XBCM) (EXP) |
| 4 | ENG Fuse | 15A | Evaporative Emissions (EVAP) Canister Purge Solenoid Valve, Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor, Valve Lifter Oil Manifold (VLOM) Assembly (AFM) |
| 5 | ECM/THROT CONT Fuse | 15A | Engine Control Module (ECM) |
| 6 | ITBC Fuse | 15A | Not Used |
| 7 | FRT WASH Fuse | 15A | Windshield Washer Fluid Pump |
| 8 | O2-B SNSR Fuse | 10A | Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 |
| 9 | ABS 2 Fuse | 25A | Electronic Brake Control Module (EBCM) |
| 10 | TRLR BCK/UP Fuse | 10A | Trailer Wiring |
| 11 | LO HDLP-LT Fuse | 20A | Headlamp - Left (Z88), Headlamp - Low Beam - Left (X88), Headlamp Ballast - Left (Z75) |
| 12 | ECM-BATT Fuse | 10A | Engine Control Module (ECM) |
| 13 | INJ-B Fuse | 20A | Fuel Injector 2, Fuel Injector 4, Fuel Injector 6, Fuel Injector 8, Ignition Coil 2, Ignition Coil 4, Ignition Coil 6, Ignition Coil 8 |
| 14 | TCM-BATT Fuse | 15A | Evaporative Emissions (EVAP) Canister Vent Solenoid Valve, Transmission Control Module (TCM) |
| 15 | VEH BCK/UP Fuse | 10A | Backup Lamp - Left, Backup Lamp - Right |
| 16 | LO HDLP-RT Fuse | 20A | Headlamp - Right (Z88), Headlamp - Low Beam - Right (X88), Headlamp Ballast - Right (Z75) |
| 17 | A/C CMPRSR Fuse | 10A | A/C Compressor Clutch |
| 18 | O2-A SNSR Fuse | 10A | Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 |
| 19 | TRANS IGN 1 Fuse | 15A | Transmission Control Module (TCM), 1-2 Shift Solenoid (1-2 SS) Valve, 2-3 Shift Solenoid (2-3 SS) Valve, 3-2 Shift Solenoid (3-2 SS) Valve (M30 or (M30), Torque Converter Clutch (TCC) Solenoid Valve (M30), Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve |
| 20 | FUEL PUMP Fuse | 20A | Fuel Pump and Sender Assembly - Primary |
| 21 | FSCM Fuse | 20A | Fuel Pump Flow Control Module |
| 22 | HDLP WASH Fuse | 20A | Not Used |
| 23 | REAR WASH Fuse | 15A | Rear Window Washer Fluid Pump |
| 24 | INJ-A Fuse | 20A | Fuel Injector 1, Fuel Injector 3, Fuel Injector 5, Fuel Injector 7, Ignition Coil 1, Ignition Coil 3, Ignition Coil 5, Ignition Coil 7 |
| 25 | TRLR PRK Fuse | 15A | Trailer Wiring |
| 26 | LT PRK Fuse | 15A | License Lamp - Left, License Lamp - Right, Marker Lamp - Left Front, Park/Turn Signal Lamp - Left Front (X88/Z88), Park Lamp - Left Front (Z75), Tail Lamp Circuit Board - Left (Z75 with E52), Marker Lamp - Left Rear (except Z75 with E52), Tail/Stop and Turn Signal Lamp - Lower Left (except Z75 with E52), Tail/Stop and Turn Signal Lamp - Upper Left (except Z75 with E52) |
| 27 | RT PRK Fuse | 15A | Tail Lamp Circuit Board - Right (Z75 with E52), Marker Lamp - Right Front, Park Lamp - Right Front (Z75), Park/Turn Signal Lamp - Right Front (X88 or Z88), Tail/Stop and Turn Signal Lamp - Lower Right (X88, Z88 or Z75 with E52), Tail/Stop and Turn Signal Lamp - Upper Right (X88, Z88 or Z75 with E52), Marker Lamp - Right Rear (X88, Z88 or Z75 with E52) |
| 28 | FOG LAMP Fuse | 15A | Fog Lamp - Left Front (T96), Fog Lamp - Right Front (T96) |
| 29 | HORN Fuse | 15A | Horn - Left, Horn - Right |
| 30 | HI HEADLAMP-RT Fuse | 10A | Headlamp - Right (Z88), Headlamp - Right High Beam (X88 or Z75) |
| 31 | DRL Fuse | 15A | Daytime Running Lamp (DRL) - Left (Z75 or X88), Daytime Running Lamp (DRL) - Right (Z75 or X88), DRL 2 Fuse (Z88) |
| 32 | HI HEADLAMP-LT Fuse | 10A | Headlamp - Left (Z88), Headlamp - High Beam - Right (X88 or Z75) |
| 33 | DRL 2 Fuse | 15A | LO HDLP - LT Fuse (Z88), LO HDLP - RT Fuse (Z88) |
| 34 | S/ROOF Fuse | 30A | Sunroof Control Module (CF5), Roof Beacon Relay (5G4) |
| 35 | DLIS Fuse | 2A | Ignition Switch, Theft Deterrent Module (TDM) |
| 36 | FRT WPR Fuse | 25A | Wiper 1 PCB Relay |
| 37 | SEO B2 Fuse | 30A | Not Used |
| 38 | EAP Fuse | 15A | PARK ENABLE PCB Relay, ELECTRONIC ADJUSTABLE PEDALS PCB Relay, Folding Seat Switch - Front (ARS), Folding Seat Switch - Left Rear (ARS), Folding Seat Switch - Right Rear (ARS), Multifunction Switch - I/P, Police Provision Wiring (6J1) |
| 39 | HVAC BATT Fuse | 10A | HVAC Control Module |
| 40 | AIRBAG IGN Fuse | 10A | Inflatable Restraint Sensing and Diagnostic Module (SDM), Inflatable Restraint Passenger Air Bag ON/OFF Indicator |
| 41 | AMP Fuse | 30A | Audio Amplifier (UQA or UQS) |
| 42 | RDO Fuse | 15A | Clock (Z75), Digital Radio Receiver (U2K), Radio, Rear Seat Audio (RSA) Controller (UK6) |
| 43 | MISC IGN Fuse | 10A | Auxiliary Body Control Module (XBCM) (EXP), Rearview Camera (UVC or SPO Accessory - Rear Vision Camera), Seat Climate Control Module (KB6), Stop Lamp Switch, Transfer Case Shift Control Module (NQH), Serial Data Gateway (SDG) Module (HP2) |
| 44 | L/GATE RELSE Fuse | 15A | Liftgate Latch Assembly (E52) |
| 45 | AIRBAG BATT Fuse | 15A | Inflatable Restraint Passenger Presence System (PPS) Module, Inflatable Restraint Sensing and Diagnostic Module (SDM), Inflatable Restraint Vehicle Rollover Sensor (ASF) |
| 46 | IPC Fuse | 10A | Body Control Module (BCM), Instrument Panel Cluster (IPC) |
| 47 | EXP/PTO Fuse | 15A | Auxiliary Body Control Module (XBCM) (EXP), Spot Lamp - Left (7X6) |
| 48 | AUX HVAC-IGN Fuse | 10A | Electronic Compass Module (YE9), Instrument Panel Cluster (IPC), Inside Rearview Mirror (ISRVM), Mode Actuator - Auxiliary (C69), Air Temperature Actuator - Auxiliary (C69), Inflatable Restraint Steering Wheel Module Coil (KA9), Heated Steering Wheel Control Module (KA9) |
| 49 | CHMSL Fuse | 15A | Not Used |
| 50 | REAR DEFOG Fuse | 30A | Rear Window Defogger Grid |
| 51 | HTD MIR Fuse | 15A | Not Used |
| 52 | SEO B1 Fuse | 15A | Auxiliary Body Control Module (XBCM) (EXP), Spot Lamp - Right (7X7), Vehicle Inclination Sensor (SPO Alarm), Security Indicator Lamp (SPO Alarm), Vehicle Shock Sensor (SPO Alarm) |
| 53 | LTR Fuse | 20A | Accessory Power Outlet - I/P 1, Data Link Connector (DLC) |
| 54 | SEO/ALC Fuse | 10A | Automatic Level Control (ALC) Relay (G69), Inline Fuse Digital Video Disc (DVD) Control Module (SPO Accessory - Headrest DVD) |
| 55 | HVAC-IGN Fuse | 10A | Air Temperature Actuator - Left, Air Temperature Actuator - Right, Mode Actuator, Recirculation Actuator |
| 56 | ECM-IGN Fuse | 15A | Engine Control Module (ECM), Fuel Pump Relay - Secondary (LY6), Fuel Pump Flow Control Module (except LY6), Electronic Brake Control Module (EBCM) (HP2) |
| 57 | FAN-1 Fuse | 40A | FAN LO PCB Relay |
| 58 | ALC/COMP Fuse | 40A | Automatic Level Control (ALC) Relay (G69) |
| 59 | HEAVY DUTY ABS Fuse | 60A | Electronic Brake Control Module (EBCM) |
| 60 | FAN-2 Fuse | 40A | FAN HI PCB Relay |
| 61 | ABS-1 Fuse | 40A | Electronic Brake Control Module (EBCM) |
| 62 | STRTR Fuse | 40A | Starter Motor |
| 63 | STUD-2 Fuse | 30A | Blunt Cut Wire |
| 64 | LBEC1 Fuse | 60A | AUX PWR 2 Fuse, REAR WPR Fuse, PDM Fuse, AUX PWR Fuse |
| 65 | ELEC RUN BOARD Fuse | 30A | Assist Step Control Module (BRS) |
| 66 | WSW/HTR Fuse | 60A | Windshield Washer Solvent Heater (XA7) |
| 67 | TREC Fuse | 30A | Transfer Case Encoder Motor (NQH), Transfer Case Shift Control Module (NQH) |
| 68 | STUD-1 Fuse | 40A | Trailer Wiring |
| 69 | MBEC1 Fuse | 60A | DRIVER SEAT 2 Circuit Breaker, PASS SEAT 1 Circuit Breaker, RT DOORS Circuit Breaker |
| 70 | HVAC BLWR Fuse | 40A | Blower Motor Control Module |
| 71 | LGM Fuse | 30A | Liftgate Module (LGM) (E61) |
| 72 | LBEC2 Fuse | 60A | BCM Fuse, COOLED SEATS Fuse, DDM Fuse, DIM Fuse, DSM Fuse, REAR HVAC Fuse, RT STOP TRN Fuse, WSW PUMP Fuse |
| - | A/C CMPRSR Relay | - | A/C CMPRSR Fuse |
| - | FAN CNTRL Relay | - | FOG LAMP Fuse |
| - | FAN HI Relay | - | Cooling Fan - Right, FAN CNTRL Relay |
| - | FAN LO Relay | - | Cooling Fan - Left |
| - | FOG LAMP Relay | - | FOG LAMP Fuse |
| - | FUEL PUMP Relay | - | FUEL PUMP Fuse |
| - | HDLP LO/HID Relay | - | LO HDLP - LT Fuse, LO HDLP - RT Fuse, DRL 2 Fuse |
| - | PRK LAMP Relay | - | LT PRK Fuse, RT PRK Fuse, TRLR PRK Fuse |
| - | PWR/TRN Powertrain Relay | - | ECM/THROT CONT Fuse, ENG Fuse, INJ-A Fuse, INJ-B Fuse, O2-A SNSR Fuse, O2-B SNSR Fuse, FAN CNRTL Relay, FAN HI Relay, FAN LO Relay |
| - | REAR DEFOG Relay | - | REAR DEFOG Fuse, HTD MIR Fuse |
| - | RUN/CRNK Relay | - | AIRBAG IGN Fuse, AUX HVAC-IGN Fuse, HVAC-IGN Fuse, ECM-IGN Fuse, MISC IGN Fuse, SEO/ALC Fuse, TRANS IGN 1 Fuse |
| - | STARTER Relay | - | STRTR Fuse |
|
NOTE:
Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block. |
|||
| - | BCK/UP LAMP PCB Relay | - | VEH BCK/UP Fuse, TRLR BCK/UP Fuse |
| - | CHMSL PCB Relay | - | CHMSL Fuse |
| - | DRL PCB Relay | - | DRL Fuse |
| - | FAN CNTRL PCB Relay | - | Cooling Fan - Right |
| - | FRT WASH PCB Relay | - | FRT WASH Fuse |
| - | HI BEAM PCB Relay | - | HI HEADLAMP - LT Fuse, HI HEADLAMP - RT Fuse |
| - | HORN PCB Relay | - | HORN Fuse |
| - | L/GATE PCB Relay | - | L/GATE RELSE Fuse |
| - | REAR WASH PCB Relay | - | REAR WASH Fuse |
| - | RUN PCB Relay | - | FWD Fuse, HTD STR/WHL Fuse |
| - | TRLR STOP LT PCB Relay | - | TRLR STOP LT Fuse |
| - | TRLR STOP RT PCB Relay | - | TRLR STOP RT Fuse |
| - | WIPER 1 PCB Relay | - | Wiper 2 PCB Relay |
| - | WIPER 2 PCB Relay | - | Windshield Wiper Motor |
|
NOTE:
Items listed below are wiper system diagnostic test points. |
|||
| - | TP 92 | - | Wiper High Speed Test Point |
| - | TP 95 | - | Wiper Low Speed Test Point |
RENDER: 1.0x
NO RELATED
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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.