Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Brakes and Traction Control
- Relays and Modules - Cooling System
- Relays and Modules - Cruise Control
- Relays and Modules - Engine
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Powertrain Management
- 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 - Engine
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Camshaft Position Sensor
- Clutch Switch
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- EGR Valve Position Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Steering and Suspension
- 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
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 7500 MI or 12000 KM
- 15000 MI or 24000 KM
- 22500 MI or 36000 KM
- 30000 MI or 48000 KM
- 37500 MI or 60000 KM
- 45000 MI or 72000 KM
- 52500 MI or 84000 KM
- 60000 MI or 96000 KM
- 67500 MI or 108000 KM
- 75000 MI or 120000 KM
- 80000 MI or 128000 KM
- 82500 MI or 132000 KM
- 90000 MI or 144000 KM
- 97500 MI or 156000 KM
- 105000 MI or 168000 KM
- 112500 MI or 180000 KM
- 120000 MI or 192000 KM
- 127500 MI or 204000 KM
- 135000 MI or 216000 KM
- 142500 MI or 228000 KM
- 150000 MI or 240000 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
- 50000 MI or 80000 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
- 80000 MI or 128000 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
- 110000 MI or 176000 KM
- 111000 MI or 177600 KM
- 114000 MI or 182400 KM
- 117000 MI or 187200 KM
- 120000 MI or 192000 KM
- 126000 MI or 201600 KM
- 132000 MI or 211200 KM
- 135000 MI or 216000 KM
- 138000 MI or 220800 KM
- 144000 MI or 230400 KM
- 150000 MI or 240000 KM
Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- 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
- Relays and Modules - Engine
- Seals and Gaskets
- Sensors and Switches - Engine
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
Service and Repair
Specifications- Technical Service Bulletins
- Cooling System
- Coolant
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Core
- Lamps and Indicators - Cooling System
- Radiator Cap
- Relays and Modules - Cooling System
- Sensors and Switches - Cooling System
- Temperature Gauge
- Thermostat
- Thermostat Housing
- Water Pump
Testing and Inspection- Specifications
- Technical Service Bulletins
- Exhaust System
- Technical Service Bulletins
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Camshaft Position Sensor
- Clutch Switch
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- EGR Valve Position Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- A/C Signal
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Barometric Pressure Sensor
- Brake Signal
- Camshaft Position Sensor
- Clutch Switch
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- Data Link Connector
- EGR Valve Position Sensor
- Engine Control Module
- Idle Speed/Throttle Actuator - Electronic
- Knock Sensor
- Main Relay (Computer/Fuel System)
- Malfunction Indicator Lamp
- Oxygen Sensor
- Power Steering Pressure Switch
- Pressure Feedback Exhaust Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Camshaft Position Sensor
- Clutch Switch
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- EGR Valve Position Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
Service Precautions
Description and Operation- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Diagnostic Strategies
- Verifying Customer Complaint
- Checking the Basics
- Intermittent Fault Diagnosis (Using the EEC Monitor)
- Diagnostic Flowchart
- Introduction
- Vehicle Preparation and Testing
- Symptom Charts
- Road Test
- Analyzing Data
- EEC-IV Monitor Measurement Methods
- Diagnostic Reference Values
- Graphs and Charts
- Air Charge Temperature (ACT) Sensor
- Barometric and Manifold Absolute Pressure (BP/MAP) Sensors
- EGR Valve Position (EVP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Fuel Pressure
- Manual Lever Position Sensor (MLPS)
- Mass Air Flow (MAF) Sensor
- Pressure Feedback EGR (PFE) Sensor
- Throttle Position (TP) Sensor
- Transmission Oil Temperature Sensor
- Flow of Diagnosis
- Initial Inspection
- Diagnostic Strategies
- Reading and Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Base Timing Check
- Code Output Format Description
- Computed Timing Check
- Computed Timing Check Description
- Continuous Memory Mode (Wiggle Test) Description
- Continuous Monitor Mode (Wiggle Test)
- Cylinder Balance Test (SEFI Only) Description
- Engine Running Self-Test
- General Testing Description
- Key On Engine Off (KOEO) Self-Test
- Output State Check
- Output State Checks Description
- Types of Codes
- Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Symptom Related Diagnostic Procedures
- Symptom Index
- Symptom Charts
- Automatic Transmission Shift Concern
- Backfires on Idle, Acceleration or Cruise
- Emission Compliance
- Exhaust System Concerns (Visual Smoke)
- Gasoline Fumes
- High Oil Consumption
- Idle Problems & Stalling
- Lack/Loss of Power on Acceleration or Cruise
- Manual Transmission Shift Concerns (Shift Light/Chime on)
- No Start or Hard to Start
- Noise (Under Hood)
- Overheating
- Poor Fuel Economy
- Runs Cold
- Runs Rough
- Spark Knock on Acceleration or Cruise
- Surges at Steady Speed or While Cruising
- Vibration Concerns
- Warning Indicators (MIL, DCL, SIL)
- Pinpoint Tests
- AC - EEC-IV No Start (EDIS)
- Testing Notes
- Testing Schematic
- AC1 - Attempt to Crank Engine
- AC2 - Check For VREF at Throttle Position Sensor
- AC3 - Check For Spark at Plugs
- AC4 - Check Continuity of Ignition Ground Circuit
- AC5 - Check PIP Circuit For Short to Power
- AC6 - Check PIP Circuit Continuity
- AC7 - Check PIP Signal Circuit For Shorts to Ground
- AC8 - Isolate Short(S) In Processor
- AC9 - Check PIP Signal
- AC10 - Check Fuel Pump
- B - Vehicle Battery
- Testing Notes
- Testing Schematic
- B1 - Check Battery Voltage
- B2 - Check Power Ground Circuit Continuity
- B3 - Check Open Between Sig Rtn PWR GND Circuit 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
- Testing Notes
- Testing Schematic
- C1 - Check Voltage 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/BP Sensor
- C8 - Check For Shorted 4EAT Module
- C9 - Check VREF Circuit For Short to Ground
- DA - ACT and ECT Sensors
- Testing Notes
- Testing Schematic
- Sensor Data
- DA1- Code 21/116 or 24/114: Check Temp 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 Code 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
- DB - EGR Temperature Sensor
- Testing Notes
- Testing Schematic
- DB1 - Continuous Memory Code 327: Verify Condition
- DB2 - Induce Opposite Code
- DB3 - Check EGRT Circuit For Shorts to Ground
- DB5 - Continuous Memory Code 337: Verify Condition
- DB6 - Check EGRT Circuit For Shorts to Power
- DB7 - Induce Opposite Code
- DB8 - Check Continuity of Harness Circuits
- DB10 - Continuous Memory Code 326: Check Engine Idle
- DB11 - Verify Condition
- DB12 - Check Continuity of Harness Circuits
- DB20 - Continuous Memory Code 332: Check EGR Valve Holds Vacuum
- DB21 - Check EGR Valve Operation
- DB22 - Check For Continuous Memory Code 326
- DB90 - Check EEC-IV Vehicle Harness
- DB91 - Check Processor and Harness Connectors
- DC - Mass Air Flow (MAF) Sensor
- Testing Notes
- Testing Schematic
- Sensor Data
- DC1 - Service Code 26/159: Check VPWR Circuit Voltage
- DC2 - Check MAF Sensor Ground
- DC10 - Service Code 66/157, 72/129
- DC11 - Check MAF For Shorts to Ground & MAF Rtn Circuit
- DC12 - Check PWR Ground Circuit Continuity
- DC13 - Check MAF Rtn Circuit Continuity
- DC14 - Check MAF Circuit For Short to Ground
- DC15 - Check MAF Circuit Output
- DC16 - Check MAF Circuit Output
- DC20 - Code 56/158: Rerun Self-Test W/MAF Sensor Disconnected
- DC21 - Check MAF Circuit For Short to VPWR
- DF - Manifold Absolute Pressure/Barometric Pressure Sensor
- Testing Notes
- Testing Schematic
- Sensor Data
- DF1 - Service Code 22/126: Check For Power to MAP/BP Sensor
- DF2 - Check For Power at Sensor Vehicle Harness Connector
- DF3 - Check MAP/BP Sensor Output
- DF4 - Check MAP/BP Sig Circuit Continuity
- DF5 - Check MAP/BP Circuit For Shorts to VREF, Sig Rtn & Ground
- DF7 - Engine Running Code 22/126: Check For EGR Service Codes
- DF8 - Check MAP Sensor Operation
- DF9 - Attempt to Eliminate Engine Running Service Code 22/126
- DF10 - Service Code 72/129: Rerun Dynamic Response Test
- DF11 - Service Code 81/128: Check Vacuum Hoses
- DF12 - Check MAP Sensor Operation
- DF13 - Check Vacuum to MAP Decreases During Dynamic Response
- DF90 - Continuous Code 22/126: Exercise MAP/BP Sensor
- DF91 - Check EEC-IV Vehicle Harness
- DF92 - Check Processor and Vehicle Harness Connectors
- DG - Knock Sensor
- DH - Throttle Position (TP) Sensor
- Testing Notes
- Testing Schematic
- Sensor Data
- DH1 - Engine Running Service Code 23/121
- DH2 - Service Code 23/121: Check For Stuck Throttle Plate
- DH3 - Service Code 53/123: Attempt to Generate Code 63/122
- DH4 - Check VREF Circuit Voltage
- DH5 - Check For Shorted 4EAT Module
- DH6 - Check TP Circuit For Shorts to Power
- DH10 - Service Code 63/122
- DH11 - Check VREF Circuit Voltage
- DH12 - Check TP Circuit Continuity
- DH13 - Check For Shorted 4EAT Module
- DH14 - Check TP Circuit For Short to Ground
- DH20 - Engine Running Service Code 73/167
- DH21 - Check TP Sensor Movement During Dynamic Test
- DH90 - Continuous Memory Code 53/123
- DH91 - Measure TPS Voltage While Exercising Sensor
- DH92 - Check EEC-IV Vehicle Harness
- DH93 - Check Processor and Harness Connectors
- DH94 - Continuous Memory Code 63/122
- DH95 - Check EEC-IV Vehicle Harness
- DH96 - Check Processor and Harness Connectors
- DP - Vehicle Speed Sensor (VSS)
- DR - Cylinder Identification Sensor
- DR1 - Continuous Code 214: Will Engine Start
- DR2 - Clear and Attempt to RE-Generate Code 214
- DR3 - Check CID Circuit Continuity to EEC-IV
- DR4 - Check CID Circuit For Short to Power
- DR5 - Check CID Circuit For Short to Ground
- DR6 - Check For Shorts In Processor
- DR7 - Check CID Sensor Output
- DR10 - Check For VPWR to Crank Angle Sensor
- DR20 - Check CID Wiring
- DR21 - Road Test
- DS - Programmable Speedometer/Odometer Module
- FD - Brake On/Off
- Testing Notes
- 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 Short to Power In Brake/Shift Interlock Solenoid
- FD10 - Service Code 75/531: Check Operation of Brake Lamps
- FD11 - Check BOO Circuit Continuity
- FD90 - Continuous Code 536: Check Stoplight Installation
- FD91 - Check Stoplight Ground
- FD92 - Check Stoplight/BOO Circuits For Short to Power
- FD93 - Check Stoplight Circuit Continuity
- FD94 - Check BOO Circuit Continuity
- FD99 - Road Test
- FE - Electrical Load Inputs
- Testing Notes
- 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 Shorting 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
- Testing Notes
- 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 PSP Circuits For Shorts
- FF8 - Check PSPS State With Key on Engine Off VS Engine Running
- 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
- FF20 - Service Code 521: Verify Operator Interaction
- 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
- G - In-Range MAF/TPS/Fuel Injector Pulse Width Test
- Testing Notes
- G1 - Throttle Position Sensor Integrity
- G2 - Check Throttle Body
- G3 - Check MAP/BP Sensor Output
- G4 - Check ACT Sensor
- G5 - Visually Inspect MAF Sensor
- G6 - Check MAF Sensor
- G7 - Visual Vacuum Checks
- G8 - Check Fuel Pressure
- G9 - Check System Ability to Hold Fuel Pressure
- G10 - Cylinder Balance Test
- H - Fuel Control
- Testing Notes
- Testing Schematic
- Fuel Injector Resistance Specifications
- Fuel Pressure Specifications
- H1 - Check For Contaminated Engine Oil
- H2 - Check Fuel Pressure
- H3 - Check System Ability to Hold Fuel Pressure
- H4 - Fuel Delivery Test
- H5 - Cylinder Balance Test: EFI Engines
- H6 - Cylinder Balance Test SEFI Engines
- H7 - Check Resistance of Injector(S) and Harness EFI Engines
- H8 - Check Resistance of Injector(S) and Harness SEFI Engines
- H9 - Check Continuity of Fuel Injector Harness
- H10 - Check Injector Harness Circuit For Short to Power/Ground
- H11 - Isolate Faulty Injector Circuit
- H12 - Check Injector Driver Signal
- H13 - Check Thermactor Operation
- H14 - Check HEGO Integrity
- H15 - Check HEGO Sensor on Engines With MAP Sensors
- H16 - Check HEGO Sensor on Engines With MAF Sensor
- H17 - Check Continuity of HEGO Signal and HEGO Ground
- H18 - Check HEGO Circuit For Short to Ground
- H19 - Check HEGO Sensor For Short to Ground
- H20 - Attempt to Eliminate Code 41/172, 91/136 or 176
- H21 - Check Resistance of Heated Element on HEGO
- H22 - Check For Power at HEGO Harness Connector
- H23 - Check Continuity of Power Ground Circuit
- H24 - Check HEGO Signal For Short to Power
- H25 - Check For Short to Power
- H26 - Check HEGO Sensor For Short to Ignition Run Circuit
- H27 - Attempt to Generate Code 41/172, 91/136, 176
- H28 - Check MAP Sensor For Vacuum Leak
- H29 - Check For Loss of Vacuum to MAP Sensor
- H30 - HEGO Sensor Check
- H90 - Check Continuous Monitor Mode
- H91 - Continuous Monitor Test Drive Check
- H92 - Check HEGO Switching
- HA - Adaptive Fuel
- Testing Notes
- Fuel Pressure Specifications
- MAP/BP Sensor Data
- HA1 - Continuous Codes 181, 183, 189, 192
- HA2 - Run Cylinder Balance Test
- HA3 - Check For Vacuum/Air Induction Leaks
- HA4 - Check For Low Fuel Pressure
- HA5 - Check System Ability to Hold Fuel Pressure
- HA6 - Check MAP/BP Frequency
- HA7 - Check For Proper Battery Voltage to Fuel Injectors
- HA8 - Verify That Canister Purge Solenoid Is Not Stuck Closed
- HA9 - Check Thermactor System For Upstream Air Leak
- HA15 - Continuous Codes 179, 182, 188, 191: Is Vehicle SEFI/EFI
- HA16 - Run Cylinder Balance Test
- HA17 - Check For Excess Fuel Pressure
- HA18 - Check System Ability to Hold Fuel Pressure
- HA19 - Check MAP/BP Frequency
- HA20 - Check Throttle Body and Air Induction System
- HA21 - Verify That Canister Purge Solenoid Will Hold Vacuum
- HA25 - Check PCV Valve
- HA26 - Check HEGO Heated Circuit
- HA27 - Inspect HEGO Sensor For Continuity
- HA28 - Verify Excessive Vacuum Is Not at EGR Valve During Idle
- HA29 - Verify EGR Valve Is Fully Seated
- HA30 - Check Cooling System
- HA35 - Check Ignition System
- HA36 - Flow Check Injectors
- HA37 - Check Cylinder Compression
- HA40 - Road Test
- J - Fuel Pump Circuit
- Testing Notes
- Testing Schematic
- J1 - No Fuel Pressure: Check Fuel Pump Electrical Operation
- J2 - Check For VPWR TP Processor
- J3 - Check For Voltage to Power-to-Pump(S) Circuit
- J4 - Check For Battery(+) to Fuel Pump Relay
- J5 - Check For Voltage at Power-to-Pump Circuit
- J7 - Service Code 87/556: Check For VPWR to Fuel Pump Relay
- J8 - Check Fuel Pump Relay
- J9 - Check Fuel Pump Circuit For Short to Power
- J10 - Check Fuel Pump Circuit For Short to Ground
- J11 - Check Fuel Pump Circuit Continuity
- J20 - Service Code 95/542: Does Engine Start
- J21 - Verify That Fuel Pump Is Off
- J22 - Check For Fuel Pump Relay Always Closed
- J23 - Check FPM Circuit Continuity
- J25 - Check Inertia Switch
- J30 - Service Code 96/543: DOSE Engine Start
- J31 - Check For Battery(+) to Fuel Pump Relay
- J32 - Check Power-to-Pump Circuit Continuity
- J35 - Check Left/Front HEGO Sensor For Short to Power
- J36 - Check HEGO Circuit For Short to Power
- J90 - Continuous Code 95/542: Check EEC-IV Harness
- J91 - Check FPM Circuit
- J92 - Check For Shorts to Power
- J93 - Continuous Code 96/543: Check Code 87/556
- J94 - Check EEC-IV Harness
- J95 - Continuous Code 87/556: Check EEC-IV Harness
- J96 - Check Left/Front HEGO Circuit For Short to Power
- J99 - Road Test
- KD - Canister Purge
- Testing Notes
- Testing Schematic
- KD1 - Enter Output State Check
- KD2 - Check Canister Purge Solenoid Electrical Operation
- KD3 - Check CANP Solenoid For Vacuum Leaks
- KD4 - Check CANP Solenoid For Mechanical Operation
- KD5 - Check For Vacuum to CANP Solenoid
- KD6 - Service Code 85/565, 569: Check CANP Solenoid Resistance
- KD7 - Check VPWR Circuit Voltage
- KD8 - Check Continuity of CANP Circuit
- KD9 - Check Camp Circuit For Short to Ground
- KD10 - Check CANP Circuit For Short to Power
- KE - Idle Speed Control
- Testing Notes
- Testing Schematic
- KE1 - Service Code 12/412, 16: Check For RPM Drop
- KE2 - Check For EGR Codes
- KE3 - Check For Other EEC Codes
- KE4 - Measure ISC Solenoid Resistance
- KE5 - Check For Internal Short to ISC Solenoid Case
- KE6 - Check VPWR Circuit Voltage
- KE7 - Check ISC Circuit Continuity
- KE8 - Check ISC Circuit For Short to Ground
- KE9 - Check ISC Circuit For Short to Power
- KE10 - Check For ISC Signal From the Processor
- KE11 - Check Idle
- KE12 - Check For Problems Affecting Proper Engine Speed
- KE15 - Service Code 13/411
- KE16 - Check For Condition Affecting Idle
- KE17 - Check For Internal Short to ISC Solenoid Case
- KE18 - Check ISC Circuit For Short to Ground
- KE19 - Check Processor Output
- KE20 - Check For Proper Engine Coolant Flow to ISC-BPA Valve
- KE25 - Lack High Idle W/Cold: Verify ISC Not Stuck Closed
- KM - WOT A/C Cutout (WAC) - A/C Demand
- Testing Notes
- Testing Schematic
- Km1 - No A/C: Check For Voltage at 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 ACC/S Input TP Processor
- Km7 - Check WAC Relay
- Km15 - No A/C Cutout at WOT: Enter Output State Test
- 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 - Cycle A/C Demand Switch
- Km31 - Check ACD Circuit Continuity
- Km35 - Check ACD Circuit For Short to Power
- Km40 - Check A/C Input
- Km41 - Check For Short to Power In Processor
- Km43 - Check A/C Input Circuitry
- Km44 - Check A/C Input Circuit
- Km50 - No A/C - Attempt to Generate Code 539
- Km51 - Check For Voltage to A/C Relay
- Km52 - Check Power to Clutch Circuit Continuity
- Km53 - Check A/C Relay
- Km54 - Check AC on Circuit Continuity
- Km60 - Check ACD Circuit Continuity to Low Pressure Switch
- Km61 - Measure Resistance of LP Switch
- Km62 - Check ACD Circuit Continuity From LP Switch to Processor
- 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
- Km82 - Check A/C on Circuit For Shorts to Ground
- KN - Fuel Pressure Regulator Control Solenoid
- Testing Notes
- Testing Schematic
- KN1 - KOEO Service Code 554: Enter Output State Check
- KN2 - Fuel Pressure Regulator Solenoid Electrical Operation
- KN3 - Check Vacuum Between Fuel Regulator and Fprc Solenoid
- KN4 - Check Vacuum Signal Between Fprc Solenoid and Manifold
- KN5 - Check Fprc Solenoid
- KN6 - Check Fprc Circuit Continuity
- KN7 - Check Fprc Circuit For Short to Power and Ground
- KP - Octane Adjust
- Testing Notes
- Testing Schematic
- KP1 - Inspect Octane Adjust Inline Connector Code 57/341
- KP2 - Check For Modification Decal
- KP3 - Check For Service Code 57/341
- KP4 - Check Continuity of Octane Adjust Circuit
- KP5 - Check Service Code 11
- KP6 - Verify In-Line Connector Shorting Bar Is Installed
- KP7 - Check For Modification Decal
- KP8 - Check For TSB
- KP9 - Remove Oct Shorting Bar
- KP10 - Check Octane Adjust Circuit For A Short to Ground
- KP11 - Check Processor Integrity
- M - Dynamic Response Test
- ML - Self-Test Output/Malfunction Indicator Lamp
- Testing Notes
- Testing Schematic
- ML1 - Malfunction Indicator Light Always on
- ML4 - Malfunction Indicator Light Never on
- ML5 - Check For Bat at MIL Fuse
- ML6 - Check For VBAT 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
- ML20 - "Check Engine" Message Displayed
- ML25 - Continuous Code 529, "Check Engine"/"Check DCL"
- NC - EDIS Ignition Diagnostic Monitor
- Testing Notes
- Testing Schematic
- NC1 - Continuous Code 211: Erratic Ignition
- NC2 - Service Code 226: IDM Circuit Failure
- NC3 - Continuous Code 212: Check For Other EEC Codes
- NC4 - Continuous Codes 212: Check IDM Circuit Continuity
- NC5 - Check IDM Circuit For Shorts to Power
- NC6 - Check IDM Circuit For Short to VREF and PIP
- NC7 - Check IDM Circuit For Short to Ground
- NC8 - Check EDIS Module
- NC9 - Check EEC-IV Harness
- NC10 - Check Processor and Harness Connectors
- NC11 - Check Processor For Short to Ground
- PC - Spark Timing Check
- QA - No Codes/Codes Not Listed
- Testing Notes
- Testing Schematic
- 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 HEGO Signal For Short to Power
- QA6 - Isolate Short to Harness or HEGO Sensor
- 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
- Testing Notes
- Testing Schematic
- TA1 - Code 67/522, 525 or 528 System Identification
- TA2 - Check Neutral Gear/Clutch Input
- TA3 - Check Neutral Gear/Clutch Input Integrity
- TA4 - Check For Short to Ground
- TA5 - Check Neutral Gear/Clutch Engage Switch
- TA6 - Check Neutral Gear/Clutch Harness
- TA7 - Check Clutch Engage Switch
- TA8 - Check Neutral Drive Input
- TA9 - Check Neutral Drive Switch
- TA10 - Check Neutral Drive Input
- TA11 - Check NDS Continuity Between Processor & 4EAT Module
- TA12 - Check NDS Circuit For Shorts to Ground
- TA15 - Service Code 522: Does Engine Start?
- TA16 - Check NDS/Start Circuit For Short to Power
- TA17 - Check NDS Circuit Continuity
- TB - 4X4 Low/Overdrive Cancel Switch
- Testing Notes
- Testing Schematic
- TB1 - Verify Vehicle Self-Test State
- TB2 - Cycle the Appropriate Circuit
- TB3 - Check Harness Circuit For Short to Ground
- TB4 - Check Key Power Through OCIL Circuit
- TB5 - Check Output Driver Signal
- TB6 - Check Continuity of 4X4 Low or OD Cancel Switch Harness
- TB7 - Check Harness Circuit For Shorts to Power
- TC - Transmission Solenoids
- Testing Notes
- Testing Schematic
- TC1 - Enter Output State Check
- 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 Solenoid Resistance
- TC12 - Check Continuity of Solenoid Signal & VPWR Harness
- TC13 - 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
- Testing Notes
- TD1 - Key on Engine Off Service Code 67/634M, 522 and 654
- TD2 - Check Continuity of MLP Sensor Harness Circuits
- TD3 - Check MLP Sensor Circuit For Short to Power
- TD4 - Check MLP Sensor Resistance
- TD7 - Incorrect Shift/Lack of Shift Preliminary Checks
- TD8 - Check EEC-IV Harness Between EEC-IV and Transmission
- TD9 - Check If Symptom CAN Be Reproduced Consistently
- TD10 - Service Code 634: Clear and Attempt TP RE-Generate Code
- 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 - Wiggle Harness and Connectors Recheck For Code 634
- TD21 - Inspect Connectors, Wire Routing, ECT
- TD22 - Road Test
- TD25 - Check Harness and Connectors For Intermittent Open/Short
- TE - Transmission Oil Temperature Sensor
- Testing Notes
- 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 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
- TF - Transmission Speed Sensor
- 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
- AC - EEC-IV No Start (EDIS)
- Component Tests and General Diagnostics
- Initial Inspection and Diagnostic Overview
Locations
Diagrams- Specifications
- Technical Service Bulletins
Tools and Equipment
- Emission Control Systems
- Air Injection
- Catalytic Converter
- Early Fuel Evaporation ( EFE )
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Fillpipe Restrictor
- Positive Crankcase Ventilation
- Sensors and Switches - Emission Control Systems
- Thermostatic Air Cleaner
- Vacuum Restrictor
- Service Precautions
- Application and ID
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Symptom Related Diagnostic Procedures
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Air Cleaner Housing
- Air Flow Meter/Sensor
- Fillpipe Restrictor
- Fuel
- Fuel Filler Cap
- Fuel Filter
- Fuel Injector
- Fuel Pressure Regulator
- Fuel Pump
- Fuel Supply Line
- Fuel Tank
- Idle Speed/Throttle Actuator - Electronic
- Inertia Fuel Shutoff Switch
- Intake Air Heater
- Intake Air Plenum
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Body
- Throttle Position Sensor
- Turbocharger
- Service Precautions
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Symptom Related Diagnostic Procedures
- Cranks Normally But Slow to Start
- Cranks Normally But Won't Start
- Detonation/Spark Knock
- Diagnostic Notes
- Engine Failure or Reduced Performance
- Excessive Emissions or Odors
- Hesitates or Stalls on Acceleration
- High Oil Consumption
- Lack of Power, Sluggish
- Misses Under Load
- Poor Fuel Economy
- Rough, Unstable or Incorrect Idle; Stalling
- Surges at Steady Speed
- Component Tests and General Diagnostics
- Alcohol in Fuel Test
- Diagnostic Charts
- EFD1 - System Integrity Check
- EFD2 - Fuel Injector Pressure Test
- EFD3 - Check Fuel Pressure Leak Down
- EFD4 - Check Pressure Regulator Diaphragm Condition
- EFD5 - Check Fuel Pressure With Engine Load
- EFD6 - Check Fuel Pressure Regulator
- EFD7 - Check Vacuum Supply
- EFD8 - Check Voltage at Inertia Switch
- EFD9 - Check Voltage at Integrated Relay Control Module
- EFD10 - Check For Voltage to Integrated Relay Control Module
- EFD11 - Check Fuel Pump Resistance
- EFD12 - Check For Voltage at Fuel Pump Relay
- EFD13 - Check Power Supply to Fuel Pump Relay
- EFD14 - Check Fuel Pump Relay Operation
- EFD15 - Check Fuel Pump Operation, Audible
- EFD16 - Check Voltage Supply to Selector Switch
- EFD17 - Check Voltage at Selector Switch
- EFD18 - Check Voltage to Pump
- EFD19 - Check Fuel Pump Ground
- EFD20 - Check Fuel Pump Resistance
- EFD21 - Check Fuel Filter Condition
- EFD22 - Check Rear Tank Fuel Delivery Module
- EFD23 - Check Front Tank Fuel Delivery Module
- EFD24 - Check Pressure Regulator Valve Seat Leakage
- EFD25 - Check Regulator For High Pressure Causes
- EFD26 - Check Fuel Return System For High Pressure Causes
- EFD27 - Check Fuel Return System
- EFD28 - Check Fuel Injector Function
- EFD29 - Check Fuel Injector Resistance
- EFD30 - Check Fuel Injector Electrical Continuity Signal
- EFD31 - Check Fuel Injector Flow and Leakage
- IA1 - Air Cleaner Vacuum Motor Diagnosis
- IA2 - Air Cleaner Temperature (BI-Metal) Sensor Diagnosis
- IA3 - Air Cleaner Filter Element Diagnosis
- IA4 - Air Cleaner Duct and Valve System Diagnosis
- Induction System Leak Test
- Vacuum Related Components
- Locations
- Specifications
- Technical Service Bulletins
- Ignition System
- Firing Order
- Ignition Timing
- Calibration Resistor / Connector
- Camshaft Position Sensor
- Ignition Coil Pack
- Crankshaft Position Sensor
- Hall Effect Sensor
- Ignition Cable
- Ignition Control Module
- Ignition Timing Connector
- Knock Sensor
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Spark Plug
- Vacuum Restrictor
- Service Precautions
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- Preliminary Checkout and Notes
- Tester Abbreviations
- Typical Values
- A - No Start
- A1 - Perform EEC-IV Quick Test
- A2 - Check For Spark During Crank
- A3 - Check Plugs and Wires
- A4 - Check Vehicle Performance With EDIS Diagnostic Cable
- A5 - Check PWR GND to EDIS Module
- A6 - Check For VBAT to EDIS Module
- A7 - Check VRS+ Bias at EDIS Module
- A8 - Check VRS+ Bias Fault - VR Sensor Disconnected
- A9 - Check VRS - Bias - VR Sensor Disconnected
- A10 - Check VRS - High or Low Bias - Bias Fault
- A11 - Check VRS - For Short to Ground - Bias Low Fault
- A12 - Check VRS For Short High - Bias High Fault
- A13 - Check PIP at EDIS Module
- A14 - Check For PIP Open to Processor - Processor Disconnected
- A15 - Check Ign GND at EDIS Module - Processor Disconnected
- A16 - Check For Ign GND Open to Processor
- A17 - Check PWR GND to EDIS Module - PWR GND Fault
- A18 - Check PIP at EDIS Module - PIP Fault
- A19 - Check For PIP Short to Ground In Harness
- A20 - Check For PIP Short High
- A21 - Check VRS Amplitude at EDIS Module
- A22 - Check VRS Amplitude at EDIS Module - Amplitude Fault
- A23 - Check VRS Resistance
- A24 - Check VRS High or Low Resistance - Resistance Fault
- A25 - Check VRS+ Open - Resistance High Fault
- A26 - Check VRS - Open Fault
- A27 - Check VRS Air Gap and Trigger Wheel
- A28 - Check VRS+ Shorted to VRS - Resistance Low Fault
- A29 - Check VRS+ High or Low - VR Sensor Disconnected
- A30 - Check VRS+ For Short to Ground
- A31 - Check VRS+ For Short High - Bias High Fault
- A32 - Check VRS Resistance
- B - Code 212 - IDM Failure
- C - Code 213, Lack of Power, or Poor Fuel Economy
- C1 - Check Base Timing
- C2 - Check For Spark Angle Advance
- C3 - Check Saw at EDIS Module
- C4 - Check For Saw Short In EDIS Module - Saw Fault
- C5 - Check For Saw Short to Ground In Harness
- C6 - Check For Saw Short High In Harness
- C7 - Check For Saw Open to EDIS Module
- C8 - Inspect VRS/Trigger Wheel - Timing Fault
- D - No Start or Code 232 and/or Coil Failure
- D1 - Check For Spark During Crank
- D2 - Check Plugs and Wires
- D3 - Check For VBAT at Coil
- D4 - Check For C1 High at Coil Pack
- D5 - Check For C2 High at Coil Pack
- D6 - Check For C3 High at Coil Pack
- D7 - Check For C1 High at EDIS Module
- D8 - Check For C2 High at EDIS Module
- D9 - Check For C3 High at EDIS Module
- D10 - Check For C1 High at Coil Connector - Coil Disconnected
- D11 - Check For C2 High at Coil Connector
- D12 - Check For C3 High at Coil Connector
- D13 - Check C1 at Coil Connector While Cranking Engine
- D14 - Check C2 at Coil Connector While Cranking Engine
- D15 - Check C3 at Coil Connector While Cranking Engine
- D16 - Check For C1 Short Low - Coil Disconnected
- D17 - Check For C1 Short Low
- D18 - Check For C2 Short Low - Coil Disconnected
- D19 - Check For C2 Low
- D20 - Check For C3 Short Low - Coil Disconnected
- D21 - Check For C3 Short Low
- D22 - Check For C1 High
- D23 - Check For C2 High - EDIS Module and Coil Disconnected
- D24 - Check For C3 High EDIS Module and Coil Disconnected
- F - Misfire Under Load (Bad Plugs, Wires, or Short to Ground
- G - No Codes - Intermittent Diagnosis
- Oscilloscope Patterns and Waveforms
- Locations
- Diagrams
- Specifications
- Technical Service Bulletins
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Application and ID
- Description and Operation
- Locations
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Band
- Clutch
- Control Module
- Extension Housing
- Fluid - A/T
- Fluid Filter - A/T
- Fluid Line/Hose
- Fluid Pan
- Fluid Pump
- Relays and Modules - A/T
- Sensors and Switches - A/T
- Shift Linkage
- Torque Converter
- Transmission Speed Sensor
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- All Upshifts Harsh and/or Delayed/No Upshifts
- Converter Clutch Always Engaged
- Converter Clutch Does Not Engage
- Converter Clutch Will Not Disengage During Coast Down
- Engine Overspeeds on 2-3 Shift
- Engine Overspeeds on 3-2 Downshift
- Engine Stall Speed Exceeded In Overdrive or D
- Engine Stall Speed Exceeded In Overdrive, D or R
- Engine Stall Speed Exceeded In R
- Erratic Shifts
- Forward Engagement Slips/Shudders/Chatters
- Harsh Engagement W/Engine Warm
- Harsh/Delayed 2-3 Upshift
- Kickdown Shift Speeds Too Early
- Leaking Transmission
- Moving Selector From OD/D to Manual 1, at 55 MPH
- Mushy or Early Upshifts
- Mushy, Early, Soft or Slipping 1-2 Upshift
- No Delayed Reverse Engagement/No Engine Braking In Manual Low
- No Drive, Slips/Chatters In 1ST Gear In OD or D
- No Drive, Slips/Chatters In 2ND Gear
- No Engagement/Drive In D
- No Engagement/Drive In Forward
- No Engine Braking In Manual Second Gear
- No Forced Downshifts
- No Kickdown Into 2ND Gear Between 40-60 MPH In Overdrive or D
- No Shift Into 2ND Gear Between 40-60 MPH In Overdrive or D
- No 1-2 Upshift
- No 2-3 Upshift
- No/Delayed Forward Engagement
- No/Delayed Reverse Engagement
- Noisy Transmission/Valve Resonance
- Poor Vehicle Acceleration
- Reverse Shudder/Chatter/Slipping
- Rough Initial Engagement In Forward or Reverse
- Rough/Harsh/Delayed 1-2 Upshift
- Rough/Shudder 3-2 Shift at Closed Throttle In D
- Shift Effort High
- Shift Points Incorrect
- Shifts 1-3 In Overdrive or D
- Slipping 4TH Gear
- Slow Initial Engagement
- Soft, Early or Mushy 2-3 Upshift
- Starts Up In 2ND or 3RD
- Transmission Overheats
- Vehicle Creeping In N
- 1-2 Upshift Is Above 40 MPH at Moderate Acceleration
- Component Tests and General Diagnostics
- Service and Repair
- Specifications
- Technical Service Bulletins
- Clutch
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Flywheel
- Manual Transmission/Transaxle
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Technical Service Bulletins
- Automatic Transmission/Transaxle
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- Brake Bleeding
- 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
- Testing and Inspection
- Technical Service Bulletins
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Relays and Modules - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Alignment
- Sensors and Switches - Steering and Suspension
- Steering
- Suspension
- Wheels and Tires
- Technical Service Bulletins
- Heating and Air Conditioning
- Air Door
- Air Duct
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Compressor HVAC
- Compressor Clutch Relay
- Condenser Fan
- Coupler HVAC
- Evaporator Core
- Heater Core
- Housing Assembly HVAC
- Refrigerant
- Refrigerant Filter
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- Service Precautions
- Testing and Inspection
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Restraints and Safety Systems
- Accessories and Optional Equipment
- Body and Frame
- Cruise Control
- Brake Switch (Cruise Control)
- Clutch Switch
- Cruise Control Module
- Cruise Control Servo
- Cruise Control Switch
- Relays and Modules - Cruise Control
- Sensors and Switches - Cruise Control
- Vacuum Vent Valve
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Speed Control Is Inoperative
- Speed Continuously Changes Up & Down
- Speed Control Operates But Does Not Resume, Accelerate
- Speed Control System Does Not Disengage When Brakes Are Applied
- Speed Gradually Increases or Decreases After Speed Is Set
- Speed Will Not Set In System
- Speed Control Does Not Disengage When Clutch Depressed (M/T)
- Speed Control Operation Is Intermittent
- Component Tests and General Diagnostics
- Instrument Panel, Gauges and Warning Indicators
- Audible Warning Device
- Audible Warning Device Control Module
- Battery Lamp/Indicator
- Charge Lamp/Indicator
- Cigarette Lighter
- Dashboard / Instrument Panel
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Malfunction Indicator Lamp
- Oil Level Warning Indicator
- Oil Level Warning Indicator Relay
- Oil Pressure Gauge
- Oil Pressure Sender
- Parking Brake Warning Switch
- Relays and Modules - Instrument Panel
- Sensors and Switches - Instrument Panel
- Speedometer Head
- Speedometer Module
- Temperature Gauge
- Volt Meter Gauge
- Locations
- Diagrams
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Courtesy Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Turn Signals
- Underhood Lamp
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Locations
- Diagrams
- Diagram Information and Instructions
- Connector Views
- X-01 - X-03
- X-04 - X-07
- X-08 - X-13
- X-14 - X-21
- X-22 - X-27
- X-29 - X-37
- X-38 - X-45
- Antilock Brakes / Traction Control Systems
- Backup Lamp
- Brake Lamp
- Charging System
- Computers and Control Systems
- Control Module, A/T
- Courtesy Lamp
- Door Locks
- Hazard Warning Lamps
- Headlamp
- Heating and Air Conditioning
- Horn
- Ignition Control Module
- Instrument Panel, Gauges and Warning Indicators
- Marker Lamp
- Oil Level Warning Indicator
- Parking Lamp
- Power Mirror Motor
- Power Mirror Switch
- Power Seat Motor
- Power Seat Switch
- Power Window Motor
- Power Window Switch
- Radiator Cooling Fan Motor
- Radio/Stereo
- Rear Defogger
- Starting System
- Temperature Gauge
- Trailer Adapter Kit
- Turn Signals
- Underhood Lamp
- Windshield Washer Motor
- Wiper Motor
- Electrical Diagrams
- Power and Ground Distribution
- Antilock Brakes / Traction Control Systems
- Backup Lamp
- Brake Lamp
- Charging System
- Control Module, A/T
- Courtesy Lamp
- Door Locks
- Hazard Warning Lamps
- Headlamp
- Heating and Air Conditioning
- Horn
- Instrument Panel, Gauges and Warning Indicators
- Marker Lamp
- Oil Level Warning Indicator
- Parking Lamp
- Power Mirror Motor
- Power Mirror Switch
- Power Seat Motor
- Power Seat Switch
- Power Window Motor
- Power Window Switch
- Powertrain Management
- Radiator Cooling Fan Motor
- Radio/Stereo
- Rear Defogger
- Starting System
- Temperature Gauge
- Trailer Adapter Kit
- Turn Signals
- Underhood Lamp
- Windshield Washer Motor
- Wiper Motor
- Mechanical Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Alignment
- Automatic Transmission/Transaxle
- Backing Plate
- Brake Drum
- Brake Rotor/Disc
- Differential Assembly
- Drive Axles, Bearings and Joints
- Engine
- Flex Plate
- Flywheel
- Heating and Air Conditioning
- Idle Speed
- Ignition System
- Starter Motor
- Steering
- Suspension
- Thermostat Housing, Engine Cooling
- Water Pump
- Wheel Cylinder
- Wheels and Tires
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes
