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.
1993 Ford E 350 Van V8-7.3L DSLFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Brakes and Traction Control
- Relays and Modules - Cruise Control
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Starting and Charging
- Relays and Modules - Transmission and Drivetrain
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches
- Sensors and Switches - Body and Frame
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
- Sensors and Switches - Cruise Control
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Restraints and Safety Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Transmission and Drivetrain
- Sensors and Switches - Windows and Glass
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Air Bag(s) Arming and Disarming
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Towing Information
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 5000 MI or 8000 KM
- 10000 MI or 16000 KM
- 15000 MI or 24000 KM
- 20000 MI or 32000 KM
- 25000 MI or 40000 KM
- 30000 MI or 48000 KM
- 35000 MI or 56000 KM
- 40000 MI or 64000 KM
- 45000 MI or 72000 KM
- 50000 MI or 80000 KM
- 55000 MI or 88000 KM
- 60000 MI or 96000 KM
- 65000 MI or 104000 KM
- 70000 MI or 112000 KM
- 75000 MI or 120000 KM
- 80000 MI or 128000 KM
- 85000 MI or 136000 KM
- 90000 MI or 144000 KM
- 95000 MI or 152000 KM
- 100000 MI or 160000 KM
- 105000 MI or 168000 KM
- 110000 MI or 176000 KM
- 115000 MI or 184000 KM
- 120000 MI or 192000 KM
- Severe Service
- 3000 MI or 4800 KM
- 6000 MI or 9600 KM
- 9000 MI or 14400 KM
- 12000 MI or 19200 KM
- 15000 MI or 24000 KM
- 18000 MI or 28800 KM
- 21000 MI or 33600 KM
- 24000 MI or 38400 KM
- 27000 MI or 43200 KM
- 30000 MI or 48000 KM
- 33000 MI or 52800 KM
- 36000 MI or 57600 KM
- 39000 MI or 62400 KM
- 42000 MI or 67200 KM
- 45000 MI or 72000 KM
- 48000 MI or 76800 KM
- 51000 MI or 81600 KM
- 54000 MI or 86400 KM
- 57000 MI or 91200 KM
- 60000 MI or 96000 KM
- 63000 MI or 100800 KM
- 66000 MI or 105600 KM
- 69000 MI or 110400 KM
- 72000 MI or 115200 KM
- 75000 MI or 120000 KM
- 78000 MI or 124800 KM
- 81000 MI or 129600 KM
- 84000 MI or 134400 KM
- 87000 MI or 139200 KM
- 90000 MI or 144000 KM
- 93000 MI or 148800 KM
- 96000 MI or 153600 KM
- 99000 MI or 158400 KM
- 102000 MI or 163200 KM
- 105000 MI or 168000 KM
- 108000 MI or 172800 KM
- 111000 MI or 177600 KM
- 114000 MI or 182400 KM
- 117000 MI or 187200 KM
- 120000 MI or 192000 KM
Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Access Cover
- Compression Check
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belts, Mounts, Brackets and Accessories
- Engine Lubrication
- Intake Manifold
- Lamps and Indicators - Engine
- Seals and Gaskets
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
Service Precautions
Service and Repair
Specifications- Technical Service Bulletins
- Cooling System
- Coolant
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Core
- Heater Hose
- Lamps and Indicators - Cooling System
- Radiator Cap
- Sensors and Switches - Cooling System
- Temperature Gauge
- Temperature Warning Lamp/Indicator
- Thermostat
- Water Pump
Testing and Inspection- Service and Repair
- Specifications
- Technical Service Bulletins
- Exhaust System
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- A/C Signal
- Barometric Pressure Sensor
- Brake Signal
- Data Link Connector
- Engine Control Module
- Engine Speed Sensor
- Oxygen Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Service Precautions
Description and Operation- Testing and Inspection
- Flow of Diagnosis
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Adaptive Strategy
- Address Continuous Memory DTC
- Continuous Monitor Diagnostic Test Mode (Wiggle Test)
- Quick Test Appendix (Detailed Testing Instructions)
- Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- B - Vehicle Battery
- B - Test Schematic
- B - Testing Notes
- B1 - Check Battery Voltage
- B2 - Check Power Ground Circuit Continuity
- B3 - Check for Open Between SIG RTN PWR GND Ckt At Processor
- B4 - Check Signal Return Circuit Continuity
- B5 - Check KAPWR Circuit Voltage At EEC Power Relay
- B6 - Check Ignition Circuit Voltage At EEC Power Relay
- B7 - Check Power Ground Circuit Continuity
- B8 - Check VPWR Circuit Continuity
- B9 - Check VPWR Circuit Voltage
- C - Reference Voltage
- C - Testing Notes
- C - Wiring Diagram
- C1 - Check Vehicle Battery Power Circuit
- C2 - Check VREF Voltage
- C3 - Check VREF and SIG RTN Circuits For Continuity
- C4 - Check For Excess Voltage On VREF Circuit
- C5 - Check For Shorted Throttle Position Sensor
- C6 - Check For Shorted EVP/PFE/DPFE Sensor
- C7 - Check For Shorted MAP/BARO Sensor
- C8 - Check VREF For Short to Ground
- DA - Temperature Sensor Test ACT and ECT
- DA - Sensor Data
- DA - Testing Notes
- DA - Testing Schematic
- DA1 - Code 21/116 or 24/114: Check Temperature Sensor
- DA2 - Check VREF Circuit Voltage At Throttle Position Sensor
- DA3 - Check Resistance of Temperature Sensor W/Engine Off
- DA4 - Check Resistance of Temperature Sensor W/Engine Running
- DA10 - Code 51/118 or 54/113: Induce Opposite Code
- DA11 - Check Continuity of Sensor Signal and SIG RTN Circuits
- DA20 - Code 61/117 or 64/112 Induce Opposite Code
- DA21 - Check VREF Circuit Voltage At Throttle Position Sensor
- DA22 - Check Temperature Sensor Circuit For Short to Ground
- DA90 - Continuous Memory Codes 51/118, 54/113, 61/117, 68/112
- DA91 - Check EEC-IV Vehicle Harness
- DA92 - Check Processor and Vehicle Harness Connectors
- DA100 - Continuous Memory Code 338
- DA101 - Continuous Memory Code 339
- DF - Manifold Absolute Pressure (MAP)/Barometric Pressure (BP)
- DJ - Engine RPM Sensor
- DP - Vehicle Speed Sensor (VSS)
- DQ - Throttle Position Sensor
- DQ - Testing Notes
- DQ - Testing Schematic
- DQ1 - Service Code 23: Check For Stuck Throttle Linkage
- DQ2 - Service Code 53: Attempt to Generate Code 63
- DQ3 -Check VREF Circuit Voltage
- DQ4 - Check TP Circuit For Short to Power
- DQ10 - Service Code 63: Attempt to Generate Code 53/23
- DQ11 - Check VREF Circuit Voltage
- DQ12 - Check TP Circuit Continuity
- DQ13 - Check TP Circuit For Shorts to Ground
- DQ14 - Check TP Sensor Adjustment
- DQ90 - Cont. Code 53: Monitor TP Circuit Under Simulated Shock
- DQ91 - Measure TP Circuit Voltage While Exercising TP Sensor
- DQ92 - Check EEC-IV Vehicle Harness
- DQ93 - Check Processor and Harness Connectors
- DQ94 - Cont. Code 63: Monitor TP Circuit Under Simulated Shock
- DQ95 - Check EEC-IV Vehicle Harness
- DQ96 - Check Processor and Harness Connectors
- DQ97 - Diagnostic Trouble Code 33: TP Noise
- DQ100 - Diagnostic Trouble Code 43: Check TP Circuit
- DS - Programmable Speedometer/Odometer Module
- FD - Brake On/Off (BOO) Switch
- FD - Testing Notes
- FD - Testing Schematic
- FD1 - Service Code 74/536: Verify Brake Was Pressed
- FD2 - Check Operation of Stoplamps
- FD3 - Check For BOO Circuit Cycling
- FD4 - Check For Power to Brake Switch
- FD5 - Verify Brake Switch Is Not Always Closed
- FD6 - Check For Short to Power In Processor
- FD7 - Check For Short to Power In Shiftlock Actuator
- FD90 - Check For Proper Stoplamp Switch Installation
- FD91 - Check Stoplamp Ground
- FD92 - Check Stoplamp/BOO Circuits For Short to Power
- FD93 - Check Stoplamp Circuit Continuity
- FD94 - Check BOO Circuit Continuity
- FD99 - Road Test
- FE - Electrical Load Inputs
- FE - Testing Notes
- FE - Testing Schematic
- FE1 - Electrical Load Switch Test Direction
- FE10 - Check Voltage of BLR Circuit, Low Speed Position
- FE11 - Check Voltage of BLR Circuit, High Speed Position
- FE12 - Check BLR Circuit For Short to Power
- FE13 - Check BLR Circuit Continuity
- FE14 - Check BLR Circuit For Short to Ground
- FE20 - Check Voltage of DRL Circuit, Park Brake & Headlamps On
- FE21 - Check Voltage of DRL Circuit, Park Brake & Headlamps Off
- FE22 - Check DRL Circuit For Short to Power
- FE23 - Check DRL Circuit Continuity
- FE24 - Check DRL Circuit For Short to Ground
- FE30 - Check Voltage of HDL Circuit, Headlamps Off
- FE31 - Check Voltage of HDL Circuit, Headlamps On
- FE32 - Check HDL Circuit Continuity
- FE33 - Check HDL Circuit For Short to Ground
- FE34 - Check HDL Circuit For Short to Power
- FE40 - Check Voltage of DEF Circuit, Defrost Off
- FE41 - Check Voltage of DEF Circuit, Defrost On
- FE42 - Check DEF Circuit For Short to Power
- FE43 - Check DEF Circuit For Continuity
- FE44 - Check DEF Circuit For Short to Ground
- FF - Power Steering Pressure Switch (PSPS)
- FF - Testing Notes
- FF - Testing Schematic
- FF1 - Service Code 52/519: Attempt to Eliminate Code 52/519
- FF2 - Check Continuity of PSPS Circuit
- FF3 - Check PSPS Operation
- FF4 - Check PSPS Circuits For Shorts
- FF5 - Verify Operator Interaction Service Code 52/521
- FF6 - Determine If the Processor Can Identify an Open Circuit
- FF7 - Check PSPS Circuits For Shorts
- FF8 - Check PSPS State With KOEO vs. KOER
- FF9 - Check PSPS State With Engine Running and Load vs. No Load
- FF10 - Service Code 519: Attempt to Eliminate Code 519
- FF11 - Check PSPS Circuit For Short
- FF15 - Check PSPS Operation
- FF16 - Check Continuity of PSPS Circuits
- FF21 - Determine If the Processor Can Identify A Closed Circuit
- FF22 - Check Continuity of PSPS Circuit
- FF23 - Check PSPS State W/Key On Engine Off Vs. Engine Running
- FF24 - Check PSPS State w/Engine Running and Load vs. No Load
- KM - WOT A/C Cut-Off (WAC) A/C Demand
- KM - Test Schematic
- KM - Testing Notes
- KM1 - No A/C: Check For Voltage to A/C Clutch
- KM2 - Check Power-to-Clutch Circuit Continuity
- KM3 - Check For Power On A/C Demand Circuit
- KM4 - Check Continuity Between WAC Relay and A/C Relay
- KM5 - Check WAC Circuit For Short to Ground
- KM6 - Check For Voltage at ACCS/ACD Input to PCM
- KM7 - Check WAC Relay
- KM15 - No A/C Cutout At WOT: Enter Output State Check
- KM16 - Check For VPWR to Relay
- KM17 - Check For WAC Cycling
- KM18 - Check WAC Circuit Continuity
- KM19 - Check WAC Circuit For Short to Power
- KM30 - Check A/C Input Circuitry
- KM31 - Check A/C Input Circuit
- KM32 - Cycle A/C Demand Switch
- KM40 - Code 67, 79/539: Check A/C Input
- KM41 - Check For Short to Power In Processor
- KM50 - No A/C - Attempt to Generate Code 539
- KM51 - Check For B+ Voltage to A/C Relay
- KM52 - Check Power to Clutch Circuit Continuity
- KM53 - Check A/C Relay
- KM55 - Check ACD Circuit Continuity to Low Pressure Switch
- KM56 - Measure Resistance of LP Switch
- KM57 - Check ACD Circuit Continuity From LP Switch to PCM
- KM60 - Code 559: Check For IGN Run Voltage to A/C Relay
- KM61 - Check A/C Relay
- KM62 - Check ACON Circuit For Short to Power
- KM63 - Check ACON Circuit For Short to Ground
- KM64 - Check ACON Circuit Continuity
- KM70 - Service Code 539: Check A/C Input
- KM71 - Check Low Pressure Switch
- KM72 - Check ACD Circuit to Processor For Short to Ground
- KM80 - A/C Always On: Check Clutch Circuit For Short to Power
- KM81 - Check A/C Relay
- M - Dynamic Response Test
- ML - Self-Test Output/Malfunction Indicator Lamp
- ML - Testing Notes
- ML - Testing Schematic
- ML1 - Malfunction Indicator Light Always On
- ML4 - Malfunction Indicator Light Never On
- ML5 - Check For VBAT At MIL Fuse
- ML6 - Check For B+ at MIL Bulb/Socket
- ML7 - Check MIL Bulb Response to Grounding
- ML8 - Check MIL Circuit Continuity
- ML10 - Malfunction Indicator Light Intermittent On
- ML15 - Malfunction Indicator Light Flashing with Erratic Idle
- ML20 - "Check Engine" Message Displayed
- ML25 - Continuous Code 529, "Check Engine"/"Check DCL"
- QA - No Codes/Codes Not Listed
- QA - Test Schematic
- QA - Testing Notes
- QA1 - Check VREF Voltage At Self-Test Connector
- QA2 - Check SIG RTN Circuit Continuity
- QA3 - Check STI Circuit Continuity
- QA4 - Check STO Circuit Continuity
- QA5 - Check HO2S Signal For Short to Power
- QA6 - Isolate Short to Harness or HO2S
- QA7 - Check STO Circuit For Short to Ground
- QA8 - Check If Power Relay Is Always On
- QA9 - Check VPWR Circuit For Short to Power
- QA10 - Check MIL Function
- QB - Continuous Memory Service Code 15/512
- QC - Output State Check Not Functioning
- S - System Check
- TA - Neutral Drive Input
- TB - 4X4 Low/Overdrive Cancel Switch
- TB - Testing Notes
- TB - Testing Schematic
- TB1 - Diagnostic Trouble Code (DTC) 47/633
- TB2 - Diagnostic Trouble Code (DTC) 65/632
- TB3 - Diagnostic Trouble Code (DTC) 97/631
- TB4 - Cycle the Appropriate Circuit: (4X4 Low or Transmission)
- TB5 - Check Harness Circuit(s) For Short to Ground
- TB6 - Check Key Power Through TCIL Circuit
- TB7 - Check Output Driver Signal
- TB8 - Check Continuity of Control Switch Harness
- TB9 - Check Harness Circuit(s) For Shorts to Power
- TC - Transmission Solenoids
- TC - Testing Notes
- TC - Testing Schematic
- TC1 - Enter Output State Diagnostic Test Mode
- TC2 - Check Solenoid Electrical Operation
- TC3 - Check Continuity of Solenoid Signal and VPWR Harness
- TC4 - Check Solenoid Harness For Shorts to Power or Ground
- TC10 - Check VPWR to Solenoid
- TC11 - Check Continuity of Solenoid Signal and VPWR Harness
- TC12 - Check Harness For Short to Power or Ground
- TC20 - Key On Engine Off Service Code 621/622/641/643
- TC21 - Check Shift Solenoid Circuit For Short to Power
- TC22 - Check Shift Solenoid Circuit For Short to Ground
- TC23 - Check Shift Solenoid Circuit Continuity
- TC24 - Check Shift Solenoid For Short to Power In Transmission
- TC25 - Inspect Transmission Wiring
- TC30 - Continuous Codes 621/622/641/643
- TC31 - Check Harness and Connectors For Opens or Shorts
- TC32 - Check Harness For Intermittent Shorts to Ground
- TD - Manual Lever Position (MLP) Sensor
- TD - Manual Lever Position Sensor Resistance Spec. Table
- TD - Testing Notes
- TD - Testing Schematic
- TD1 - Key On Engine Off Service Code 67/634, 522 and 654
- TD2 - Check Continuity of MLP Sensor Harness Circuits
- TD3 - Check MLP Sensor Circuit For Short to Power and Ground
- TD4 - Check MLP Sensor Resistance
- TD9 - Transmission In 3RD Gear Only When In "D" and "OD"
- TD10 - Service Code 634: Check Symptom
- TD11 - Check For IGN Start/Run Circuit Voltage At Transmission
- TD12 - Check Function of the Transmission Select Switches
- TD13 - Check Transmission Switch Input Voltages At Breakout Box
- TD14 - Check Adjustment/External Wiring of the Manual Lever
- TD20 - Visually Check Harness Between EEC-IV and Transmission
- TD21 - Check Harness and Connectors For Intermittent Problems
- TD22 - Road Test
- TE - Transmission Oil Temperature Sensor
- TE - Sensor Data
- TE - Testing Notes
- TE - Testing Schematic
- TE1 - KOEO and KOER Service Code 26 or 636
- TE2 - Check For VREF At Throttle Position Sensor
- TE3 - Check TOT Sensor Resistance Change As Oil Temp Varies
- TE10 - KOEO Service Code 56 or 637
- TE11 - Check Continuity of TOT and SIG RTN Circuits
- TE12 - Check TOT Circuit For Short to VPWR
- TE20 - KOEO Service Code 66 or 638
- TE21 - Check VREF At the Throttle Position Sensor
- TE22 - Check TOT Circuit For Short to Ground
- TE25 - Check Transmission Wiring
- TE90 - Continuous Code 637/638
- TE100 - Continuous Code 68/657: Rerun KOEO Self Test
- TF - Transmission Speed Sensor
- TF - Testing Notes
- TF1 - Engine Running Code 639
- TF2 - Check TSS/OSS Harness Circuit For Short to Power/Ground
- TF3 - Check TSS or OSS Resistance
- TF10 - Engine Running Service Code 639
- TF11 - Check TSS Circuits For Short to Power
- TF12 - Check TSS Circuit For Short to Ground or Each Other
- TF13 - Check TSS Circuit Continuity
- TF14 - Check Processor For Internal Shorts
- TF15 - Check TSS Output
- TF90 - Continuous Code 639
- TF91 - Check TSS or OSS Circuit Continuity
- TF92 - Check TSS or OSS Circuit For Short to Power or Ground
- TF93 - Check TSS or OSS Resistance
- TF95 - Continuous Code 639: Check TSS Wiring
- TF96 - Check Processor and Harness Connectors
- TF97 - Road Test
- TG - Electronic Transmission - Continuous Memory Service Codes
- B - Vehicle Battery
- Scan Tool Testing and Procedures
Locations- Service and Repair
Diagrams- Specifications
- Technical Service Bulletins
- Emission Control Systems
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Injection Timing
- Air Cleaner Housing
- Cold Start Solenoid (For Injection Pump)
- Diesel MFI Pump
- Fuel
- Fuel Filter
- Fuel Filter Restriction Warning Indicator
- Fuel Heater
- Fuel Injector
- Fuel Pump
- Fuel Supply Line
- Fuel Tank
- Fuel/Water Separator
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Cable/Linkage
- Throttle Position Sensor
- Service Precautions
- Application and ID
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- A - Engine Cranks But Will Not Start (Cold)
- B - Engine Cranks But Will Not Start (Warm)
- C - Engine Quits, Stalls, or Stumbles
- D - Engine Miss
- E - Engine Knocks
- EPC - Engine Performance Diagnostic Procedure
- Preliminary Notes
- Pressure Test Kit Hookup
- EPC1 - Check For External Leakage
- EPC2 - Check Exhaust System
- EPC3 - Check For Air In Fuel
- EPC4 - Check Fuel For Contamination
- EPC5 - Check Fuel For Cetane Value
- EPC6 - Fuel Filter Outlet Pressure
- EPC7 - Fuel Supply Pump Outlet Pressure
- EPC8 - Fuel Pump Capacity
- EPC9 - Check Restriction At Fuel Supply Pump
- EPC10 - Check Fuel Return Pressure
- EPC11 - Check Air Intake Restriction
- EPC12 - Check Injection Pump Transfer Pressure
- EPC13 - Accelerator Linkage Adjustment
- EPC14 - Check Engine Idle Speed
- EPC15 - Dynamic Injection Pump Timing
- EPC16 - Check Injection Nozzles and Inlet Lines
- EPC17 - Crankcase Pressure Test
- G - Blue/White Smoke (Warm Engine)
- H - Excessive Black Smoke
- J - Wait to Start Indicator Testing
- K - Glow Plug Testing
- L - Fuel System Air Leak Diagnosis
- Locations
- Specifications
- Technical Service Bulletins
Tools and Equipment
- Ignition System
- Glow Plug System
- Transmission Control Systems
- Actuators and Solenoids - Transmission and Drivetrain
- Lamps and Indicators - Transmission and Drivetrain
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Pinpoint Tests
- Scan Tool Testing and Procedures
- Monitors, Trips, Drive Cycles and Readiness Codes
- Diagrams
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Application and ID
- Locations
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Accumulator
- Band
- Band Apply Servo
- Brake Switch - TCC
- Case
- Clutch
- Control Module
- Extension Housing
- Fluid - A/T
- Fluid Line/Hose
- Fluid Pan
- Fluid Pump
- Governor
- Input Shaft
- Lamps and Indicators - A/T
- Malfunction Indicator Lamp - A/T
- Output Shaft
- Output Shaft Bearing/Bushing
- Park Gear
- Parking Pawl
- Planetary Gears
- Pressure Regulating Solenoid
- Relays and Modules - A/T
- Seals and Gaskets
- Sensors and Switches - A/T
- Shift Interlock
- Shifter A/T
- Shift Linkage
- Shift Modulator
- Throttle Position Sensor/Switch
- Throttle Valve Assembly
- Throttle Valve Cable/Linkage
- Torque Converter
- Torque Converter Check Valve
- Transmission Cooler
- Transmission Mode Switch
- Transmission Position Sensor/Switch
- Transmission Temperature Sensor/Switch
- Vacuum Diaphragm
- Vacuum Regulator Valve
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Symptom Related Diagnostic Procedures
- AOD
- All Upshifts Early
- Early or Slipping Upshift In 1-2
- Early or Slipping 2-3 Upshift
- Early or Slipping 3-4 Upshift
- Erratic Shifts
- Harsh Downshift Coasting Clunk
- Harsh Engagements With Warm Engine
- Harsh or Slipping 4-2 or 3-1 Shift
- Harsh, Delayed or No Upshifts
- Late 2-3 Shifting
- No Drive or Slips or Chatters In D1
- No Drive or Slips or Chatters In D2
- No Engine Braking In Manual Low
- No Engine Braking In Manual 2ND
- No Forced Downshifts
- No 1-2 Upshift
- No 2-3 Upshift
- No 3-4 Upshift
- Poor Vehicle Acceleration
- Rough Initial Engagement In Forward or Reverse
- Shift Efforts High
- Shift Hunting 3-4 or 4-3
- Shift Points Incorrect
- Shifts 1-3 In Drive
- Slipping Shift Followed By Sudden Engagement
- Slips or Chatters In Drive
- Slips or Chatters In Reverse
- Slow Forward Engagement
- Slow Initial Engagement
- Slow Reverse Engagement
- Starts In 2ND or 3RD
- Transmission Clunk or Squawk During 1-2 or 2-3
- Transmission Noisy (Other Than Valve Resonance)
- Transmission Noisy (with Valve Resonance)
- Transmission Overheats
- 3-1 Shift At Closed Throttle In Drive
- C6
- E4OD
- Diagnosis By Symptom Index
- Diagnostic Routines
- Engagement Concerns
- Routine 201/301 - No Forward Engagement
- Routine 202/302 - No Reverse Engagement
- Routine 203/303 - Harsh Reverse Engagement
- Routine 204/304 - Harsh Forward Engagement
- Routine 205/305 - Delayed/Soft Reverse Engagement
- Routine 206/306 - Delayed/Soft Forward Engagement
- Routine 207/307 - No Forward and No Reverse
- Routine 208/308 - Harsh Forward and Reverse
- Routine 209/309 - Delayed/Soft Forward and Reverse
- Shift Concerns
- Routine 210/310 - Some or All Shifts Missing
- Routine 211/311 - Shift Timing: Early/Late
- Routine 212/312 - Shift Timing: Erratic/Hunting
- Routine 213/313 - Shift Feel: Soft/Slipping
- Routine 214/314 - Shift Feel: Harsh
- Routine 215/315 - No 1ST Gear, Engages In Higher Gear
- Routine 216/316 - No Manual 1ST Gear
- Routine 217/317 - No Manual 2ND Gear
- Routine 220/320 - 1-2 Shift (Automatic)
- Routine 221/321 - 2-3 Shift (Automatic)
- Routine 222/322 - 3-4 Shift (Automatic)
- Routine 223/323 - 4-3 Shift (Automatic)
- Routine 224/324 - 3-2 Shift (Automatic)
- Routine 225/325 - 2-1 Shift (Automatic)
- Routine 226/326 - Soft/Slipping 1-2 Only (Automatic)
- Routine 227/327 - Soft/Slipping 2-3 Only (Automatic)
- Routine 228/328 - Soft/Slipping 3-4 Only (Automatic)
- Routine 229/329 - Soft/Slipping Downshifts (Automatic)
- Routine 232/332 - Harsh 1-2 Shift Only (Automatic)
- Routine 233/333 - Harsh 2-3 Shift Only (Automatic)
- Routine 234/334 - Harsh 3-4 Shift Only (Automatic)
- Routine 235/335 - Harsh 4-3 Shift Only (Automatic)
- Routine 236/336 - Harsh 3-2 Shift Only (Automatic)
- Routine 237/337 - Harsh 2-1 Shift Only (Automatic)
- Torque Converter Clutch Operation Concerns
- Other Concerns
- Routine 251/351 - Shift Lever Effort High
- Routine 252/352 - External Leaks
- Routine 253/353 - Poor Vehicle Performance
- Routine 254/354 - Noise/Vibration, Forward or Reverse
- Routine 255/355 - Engine Will Not Crank
- Routine 256/356 - No Park Range
- Routine 257/357 - Transmission Overheating
- Routine 258/358 - No Engine Braking In Manual 2 Position Only
- Routine 259/359 - No Engine Braking In Manual 1 Position Only
- Routine 260/360 - No Engine Braking With OD Off
- Routine 261/361 - Fluid Venting/Foaming
- Reference Charts
- Engagement Concerns
- AOD
- Component Tests and General Diagnostics
- AOD
- Linkage Lever Return Spring Broken or Disconnected
- Transmission Lever Does Not Return to Idle
- Transmission Lever Stays At WOT
- TV Cable Disconnected At Transmission
- TV Control Cable Does Not Lock/Locking Key In Up Position
- TV Control Linkage Adjusted Too Short
- TV Control Linkage Broken or Disconnected
- TV Linkage Adjusted Too Long
- C6
- E4OD
- AOD
- Symptom Related Diagnostic Procedures
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Differential Assembly
- Differential Carrier
- Differential Case
- Differential Axle Housing
- Fluid - Differential
- Pinion Bearing
- Pinion Gear
- Ring Gear
- Application and ID
- Description and Operation
- Testing and Inspection
- Service and Repair
- Specifications
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Flywheel
- Lamps and Indicators - Transmission and Drivetrain
- Manual Transmission/Transaxle
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Actuators and Solenoids - Transmission and Drivetrain
- Lamps and Indicators - Transmission and Drivetrain
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Pinpoint Tests
- Scan Tool Testing and Procedures
- Monitors, Trips, Drive Cycles and Readiness Codes
- Diagrams
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Testing and Inspection
- Technical Service Bulletins
- Tools and Equipment
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- Diagnostic Connector - ABS
- Electronic Brake Control Module
- Wheel Speed Sensor
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Initial Inspection and Diagnostic Overview
- About System Pre-Check
- Drive Tests
- Pinpoint Tests
- Rear Antilock Bulb Automatically Flashing After Bulb Self-Check
- System Pre-Checks
- Description
- System Pre-Check Pinpoint Tests
- Rear Antilock Brakes (RABS)
- Vehicle Setup
- Warning Indicator Lamps
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Descriptions
- Diagnostic Trouble Code Tests and Associated Procedures
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- Component Tests and General Diagnostics
- Scan Tool Testing and Procedures
- Pinout Values and Diagnostic Parameters
- Monitors, Trips, Drive Cycles and Readiness Codes
- Locations
- Diagrams
- Technical Service Bulletins
- Brake Bleeding
- Brake Warning Indicator
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Relays and Modules - Brakes and Traction Control
- Sensors and Switches - Brakes and Traction Control
- Service Precautions
- Testing and Inspection
- Technical Service Bulletins
- Antilock Brakes / Traction Control Systems
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Relays and Modules - Starting and Charging
- Charging System
- Alternator
- Charging System Relay
- Voltage Regulator
- Description and Operation
- Testing and Inspection
- Pinpoint Tests
- B: Series With Internal Voltage Regulator (IVR)
- B1 - Preliminary Checks
- B2 - Base Voltage and No Load Test
- B3 - Load Test
- B4 - Batt Drain With Key Off
- B5 - Under Voltage Test
- B6 - A Terminal Voltage Check
- B7 - F Terminal Voltage Check With Key Off
- B8 - F Terminal Voltage Check With Key On
- B9 - I Circuit Tests
- B10 - Jumpered Load Test
- B11 - Load Repeat (F Terminal)
- B12 - Over Voltage Test
- B13 - Regulator Ground Check
- B14 - Eng Ground Check
- B15 - Alternator Ground Check
- B16 - Repeat No Load Test
- B17 - A and F Voltage Checks
- Charge Lamp System Test
- B: Series With Internal Voltage Regulator (IVR)
- Component Tests and General Diagnostics
- Pinpoint Tests
- Diagrams
- Starting System
- Power and Ground Distribution
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Heating and Air Conditioning
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Compressor HVAC
- Condenser HVAC
- Control Assembly
- Coupler HVAC
- Evaporator Core
- Expansion Block/Orifice Tube
- Expansion Valve
- Heater Core
- Heater Core Case
- Heater Hose
- Refrigerant
- Refrigerant Filter
- Refrigerant Oil
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Vacuum Check Valve HVAC
- Vacuum Reservoir HVAC
- Service Precautions
- Description and Operation
- Testing and Inspection
- Diagrams
- Specifications
- Technical Service Bulletins
- Restraints and Safety Systems
- Air Bag Systems
- Air Bag(s) Arming and Disarming
- Air Bag
- Air Bag Control Module
- Clockspring Assembly / Spiral Cable
- Impact Sensor
- Safing Sensor
- Malfunction Lamp / Indicator
- Service Precautions
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Pinpoint Tests
- Glossary Of Terms Used In Pinpoint Tests
- C - Diagnostic Monitor Disconnected or Inoperative
- N - Inop Lamp Circuit or No Ignition Voltage to Monitor
- RCF - Rapid Continuous Flashing of Air Bag Lamp
- Test 12 - Air Bag Deployment Circuit Drop In Battery Voltage
- Test 13 - Air Bag or Crash Sensor Circuit Short to Ground
- Test 21 - Safing Sensor Not Mounted to Vehicle Properly
- Test 22 - Safing Sensor Shorted to Battery Voltage
- Test 23 - Safing Sensor Battery Feed Circuit Open
- Test 24 - Safing Sen. Diag. Ckt Open/Low Resist. in Crash Sen.
- Test 32 - Driver Side Air bag High Resistance/Open Circuit
- Test 33 - Passenger Side Air Bag High Resistance/Open Circuit
- Test 34 - Driver Side Air Bag Circuit Low Resistance/Shorted
- Test 35 - Passenger Side Air Bag Circuit Low Resistance/Shorted
- Test 41 - Primary Crash Sensor Circuit High Resistance/Open
- Test 44 - RH Frame Rail Crash Sensor Not Mounted Properly
- Test 45 - Center Crash Sensor Not Mounted to Vehicle properly
- Test 46 - Open Splice Center Rad. Crash Sensor Ground Monitor
- Test 51 - Diag. Monitor Int. Fuse Blown/Short No Longer Exists
- Test 52 - Backup Power Supply Voltage Boost Fault
- Test 53 - Internal Diagnostic Monitor Failure
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Relays and Modules - Restraints and Safety Systems
- Seat Belt Systems
- Sensors and Switches - Restraints and Safety Systems
- Air Bag Systems
- Accessories and Optional Equipment
- Antitheft and Alarm Systems
- Radio, Stereo, and Compact Disc
- Relays and Modules - Accessories and Optional Equipment
- Towing / Trailer System
- Trailer Connector
- Technical Service Bulletins
- Body and Frame
- Air Bag(s) Arming and Disarming
- Access Cover
- Auxiliary Step / Running Board
- Doors, Hood and Trunk
- Frame
- Interior Moulding / Trim
- Locks
- Door Locks
- Keyless Entry
- Power Locks
- Technical Service Bulletins
- Mirrors
- Paint, Striping and Decals
- Relays and Modules - Body and Frame
- Seats
- Sensors and Switches - Body and Frame
- Technical Service Bulletins
- Cruise Control
- Brake Switch (Cruise Control)
- Clutch Switch
- Cruise Control Brush Assembly
- Cruise Control Module
- Cruise Control Servo
- Cruise Control Servo Cable
- Cruise Control Switch
- Cruise Control Vacuum Vent Solenoid
- Relays and Modules - Cruise Control
- Sensors and Switches - Cruise Control
- Vacuum Pump
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- A: Speed Control Inoperative
- B: No Power to Servo
- C: No Power on Deactivator Switch Input
- D: Steering Wheel "On" Switch Inoperative
- E: Speed Control Surges
- F: Coast/Tap-Down Function Inoperative
- G: Accel/Tap-Up Function Inoperative
- H: Resume Function Inoperative
- J: No Brake Switch Shutoff
- K: Speed Control Will Not Turn Off With "Off" Switch
- Diagrams
- Technical Service Bulletins
- Instrument Panel, Gauges and Warning Indicators
- Ammeter Gauge
- Audible Warning Device
- Audible Warning Device Control Module
- Brake Warning Indicator
- Cigarette Lighter
- Dashboard / Instrument Panel
- Fuel Filter Restriction Warning Indicator
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Malfunction Indicator Lamp - A/T
- Oil Level Warning Indicator
- Oil Pressure Gauge
- Oil Pressure Warning Lamp/Indicator
- Relays and Modules - Instrument Panel
- Sensors and Switches - Instrument Panel
- Speedometer Cable
- Speedometer Head
- Speedometer Module
- Tachometer
- Temperature Gauge
- Temperature Sensor (Gauge)
- Temperature Switch (Warning Indicator)
- Temperature Warning Lamp/Indicator
- Volt Meter Gauge
- Water In Fuel Indicator
- Service Precautions
- Description and Operation
- Testing and Inspection
- Diagrams
- Specifications
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Center Mounted Brake Lamp
- Courtesy Lamp
- Daytime Running Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- Interior Lighting Module
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Turn Signals
- Underhood Lamp
- Description and Operation
- Diagrams
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Application and ID
- Locations
- Diagrams
- Diagram Information and Instructions
- Exploded Views
- Connector Views
- Air Bag Control Module
- Alarm Module, (Vehicle Antitheft)
- Alternator
- Automatic Transmission/Transaxle
- Backup Lamp Switch
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Charging System Relay
- Cruise Control Module
- Cruise Control Servo
- Daytime Running Lamp Control Unit
- Electronic Brake Control Module
- Engine Control Module
- Hazard Warning Switch
- Headlamp Dimmer Switch
- Headlamp Switch
- Ignition Lock
- Ignition Switch
- Instrument Panel, Gauges and Warning Indicators
- Interior Lighting Module
- Keyless Entry Module
- Neutral Safety Switch
- Power Door Lock Control Module
- Power Door Lock Switch
- Power Seat Motor
- Power Seat Switch
- Power Window Switch
- Radio/Stereo
- Trailer Connector
- Transmission Control Systems
- Turn Signal Switch
- Windshield Washer Switch
- Wiper Control Module
- Wiper Switch
- Electrical Diagrams
- Power and Ground Distribution
- Air Bag Systems
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- Brake Warning Indicator
- Charging System
- Cruise Control
- Heating and Air Conditioning
- Instrument Panel, Gauges and Warning Indicators
- Keyless Entry
- Lighting and Horns
- Mirrors
- Power Locks
- Powertrain Management
- Radio/Stereo
- Seats
- Starting System
- Trailer Connector
- Transmission Control Systems
- Transmission Mode Switch, A/T
- Transmission Position Sensor/Switch, A/T
- Windows
- Wiper and Washer Systems
- Mechanical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Grounds
- Splices
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Air Bag Systems
- Automatic Transmission/Transaxle
- Brake Caliper
- Brake Drum
- Brake Master Cylinder
- Brake Rotor/Disc
- Compressor Clutch
- Dashboard / Instrument Panel
- Differential Assembly
- Drive Axles, Bearings and Joints
- Engine
- Firing Order
- Flex Plate
- Flywheel
- Fuel Delivery and Air Induction
- Glow Plug
- Instrument Panel, Gauges and Warning Indicators
- Radiator Cooling Fan Temperature Sensor / Switch
- Seat Belt Systems
- Starter Motor
- Steering and Suspension
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
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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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