Repair and Diagnosis

A L L Diagnostic Trouble Codes ( DTC )
Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
  - Keyless Entry Module
  - Relay Module
- Relays and Modules - Body and Frame
  - Keyless Entry Module
  - Trunk / Liftgate Relay
- Relays and Modules - Brakes and Traction Control
  - ABS Main Relay
  - Electronic Brake Control Module
- Relays and Modules - Cruise Control
  - Cruise Control Module
- Relays and Modules - HVAC
  - Blower Motor Relay
  - Compressor Clutch Relay
- Relays and Modules - Instrument Panel
  - Fuel Distance/Mileage Module
- Relays and Modules - Lighting and Horns
- Relays and Modules - Power and Ground Distribution
  - Relay Box
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
  - Air Bag Control Module
- Relays and Modules - Steering and Suspension
  - Relays and Modules - Wheels and Tires
    - Tire Pressure Monitor Receiver / Transponder
- Relays and Modules - Transmission and Drivetrain
  - Relays and Modules - Transfer Case
    - Control Module
- Relays and Modules - Windows and Glass
  - Heated Glass Element Relay
- Relays and Modules - Wiper and Washer Systems
  - Wiper Control Module
Sensors and Switches
- Sensors and Switches - Body and Frame
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
  - Engine - Coolant Temperature Sensor/Switch
    - Coolant Temperature Sensor/Switch (For Computer)
    - Temperature Sensor (Gauge)
- Sensors and Switches - Cruise Control
- Sensors and Switches - Engine
  - Oil Pressure Sensor
- Sensors and Switches - HVAC
  - Air Conditioning Switch
  - Refrigerant Pressure Sensor / Switch
- 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 - A/T
- Sensors and Switches - Windows and Glass
  - Heated Glass Element Switch
  - Power Window Switch
- Sensors and Switches - Wiper and Washer Systems
  - Wiper Switch
Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Timing Belt
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Vehicle Lifting
- Application and ID
  - Using the Maintenance Schedule
  - Selecting the Right Schedule
    - Severe Schedule Definition
    - Normal Schedule Definition
- Service Intervals
- Service and Repair
- Specifications
  - Capacity Specifications
  - Fluid Type Specifications
- Technical Service Bulletins
Engine, Cooling and Exhaust
- Engine
- Cooling System
- Exhaust System
- Technical Service Bulletins
Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- Emission Control Systems
- Fuel Delivery and Air Induction
- Ignition System
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Application and ID
- Description and Operation
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
  - Actuators and Solenoids - A/T
  - Actuators and Solenoids - Transfer Case
    - Transfer Case Actuator
- Automatic Transmission/Transaxle
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Lamps and Indicators - Transmission and Drivetrain
  - Lamps and Indicators - A/T
    - Shift Indicator - A/T
  - Lamps and Indicators - Transfer Case
    - Four Wheel Drive Indicator Lamp
- Manual Transmission/Transaxle
- Relays and Modules - Transmission and Drivetrain
  - Relays and Modules - Transfer Case
    - Control Module
- Sensors and Switches - Transmission and Drivetrain
  - Sensors and Switches - A/T
- Transfer Case
- Transmission Control Systems
- Diagrams
- Specifications
- Technical Service Bulletins
Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- Brake Bleeding
- Brake Warning Indicator
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
  - Vacuum Brake Booster
- Relays and Modules - Brakes and Traction Control
  - ABS Main Relay
  - Electronic Brake Control Module
- Sensors and Switches - Brakes and Traction Control
- Service Precautions
  - Technician Safety Information
  - Vehicle Damage Warnings
- Testing and Inspection
  - Brake Linings & Springs
  - Adjuster Mechanism
- Service and Repair
  - General Information
  - Flushing Hydraulic System
- Technical Service Bulletins
Starting and Charging
- Sensors and Switches - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- Testing and Inspection
- Locations
- Diagrams
- Technical Service Bulletins
Power and Ground Distribution
- Auxiliary Power Outlet
- Fuse
- Fuse Block
- Ground Strap
- Grounding Point
- Multiple Junction Connector
- Relays and Modules - Power and Ground Distribution
  - Relay Box
- Relay Box
- Wiring Harness
- Locations
- Diagrams
- Technical Service Bulletins
Steering and Suspension
- Alignment
- Relays and Modules - Steering and Suspension
  - Relays and Modules - Wheels and Tires
    - Tire Pressure Monitor Receiver / Transponder
- Steering
- Suspension
- Wheels and Tires
- Specifications
  - Mechanical Specifications
  - Fluid Type Specifications
- Technical Service Bulletins
Heating and Air Conditioning
- Air Conditioning Switch
- Air Door
  - Air Door Actuator / Motor
  - Air Door Cable
- Air Duct
- Blower Motor
- Blower Motor Relay
- Compressor HVAC
  - Compressor Clutch
  - Compressor Clutch Bearing
  - Compressor Clutch Coil
  - Compressor Clutch Hub
  - Compressor Shaft Seal
  - Description and Operation
  - Testing and Inspection
  - Locations
  - Service and Repair
  - Specifications
  - Technical Service Bulletins
- Compressor Clutch Relay
- Condenser HVAC
- Control Assembly
- Evaporator Core
- Expansion Block/Orifice Tube
- Heater Core
- Heater Hose
- High Pressure Safety Valve HVAC
- Hose/Line HVAC
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Relays and Modules - HVAC
  - Blower Motor Relay
  - Compressor Clutch Relay
- Sensors and Switches - HVAC
  - Air Conditioning Switch
  - Refrigerant Pressure Sensor / Switch
- Service Port HVAC
- Vacuum Harness HVAC
- Vacuum Reservoir HVAC
- Service Precautions
  - Environmental Impact Information
  - Technician Safety Information
  - Vehicle Damage Warnings
- Description and Operation
  - With A/C
  - Without A/C
- Testing and Inspection
  - Symptom Related Diagnostic Procedures
    - Diagnosis By Symptom
    - Symptom Diagnostic Charts
  - Component Tests and General Diagnostics
- Locations
  - A/C Compressor Control Relay
  - Junction Block
- Service and Repair
  - Air Conditioning System Odor Procedure
  - Charging the System
    - Using Charging Station J-23500-01 or Equivalent
    - Using Disposable Cans or Refrigerant Drum
  - Discharging & Evacuating System
    - Discharging System
    - Evacuating
      - Charging Station Method
      - Vacuum Pump Method
  - Oil Charge
  - Proper Flushing Procedures
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
    - Connector, Splicing and Terminal Repair
      - Pull-to-Seat Connectors
      - Push-to-Seat Connectors
    - Tech Tips
  - Connector Views
    - With Air Conditioning
      - Blower Controls
        Blower Motor Resistor
        A/C to I/P In-Line
        A/C Heater to I/P In-Line
        A/C Heater Selector Switch
        Blower Control Switch
        Blower Relay
        Temperature Door Motor
        Temperature Door Switch
        In-Line Connector - Engine
        In-Line Connector - I/P
      - Compressor Controls
        In-Line Connector-Engine
        In-Line Connector-I/P
        A/C Compressor
        A/C Compressor Control Relay
        A/C Low Pressure Switch
        A/C High Pressure Cutout Switch
        A/C to I/P In-Line
        I/P to A/C-Heater In-Line
        PCM
        A/C-Heater Selector Switch
        PCM (L35 Manual Only)
    - Without Air Conditioning
  - Electrical Diagrams
    - With Air Conditioning
      - Blower Control
      - Compressor Control
        Without Vehicle Control Module (VCM)
        Part 1 of 3
        Part 2 of 3
        Part 3 of 3
    - Without Air Conditioning
  - Vacuum and Vapor Hose Diagrams
- Specifications
  - Mechanical Specifications
    - Belt Tension
    - Compressor Clutch Air Gap
  - Capacity Specifications
    - Refrigerant Capacities
    - Refrigerant Oil Capacities
  - Fluid Type Specifications
    - Refrigerant Types
    - Refrigerant Oil Types
- Technical Service Bulletins
- Tools and Equipment
  - Four Jack-Dual Range Temperature Tester
  - 0rifice Tube Remover and Extractor
  - H-10 Leak Detector
  - Evaporator Cleaning Gun
  - Refrigerant Recovery, Recycling, and Recharging Station
  - Charge Valve Octagon Socket
Restraints and Safety Systems
- Air Bag Systems
- Head Restraint System
  - Head Rest
  - Technical Service Bulletins
- Relays and Modules - Restraints and Safety Systems
  - Air Bag Control Module
- Seat Belt Systems
- Sensors and Switches - Restraints and Safety Systems
- Technical Service Bulletins
Accessories and Optional Equipment
- Antitheft and Alarm Systems
  - Keyless Entry
  - Technical Service Bulletins
- Cellular Phone
- Radio, Stereo, and Compact Disc
- Relays and Modules - Accessories and Optional Equipment
  - Keyless Entry Module
  - Relay Module
- Relay Module
- Towing / Trailer System
  - Trailer Connector
  - Trailer Lamps
- Trailer Connector
- Technical Service Bulletins
Body and Frame
- Bumper
- Doors, Hood and Trunk
- Exterior Moulding / Trim
  - Body Emblem
  - Technical Service Bulletins
- Frame
- Interior Moulding / Trim
- Locks
- Mirrors
- Paint, Striping and Decals
  - Paint
- Relays and Modules - Body and Frame
  - Keyless Entry Module
  - Trunk / Liftgate Relay
- Seats
- Sensors and Switches - Body and Frame
- Tailgate
  - Tailgate Latch
  - Technical Service Bulletins
- Weatherstrip
- Technical Service Bulletins
Cruise Control
- Brake Switch (Cruise Control)
- Clutch Switch
- Cruise Control Module
- Cruise Control Servo
- Cruise Control Servo Cable
- Cruise Control Switch
- Cruise Control Vacuum Vent Solenoid
- Relays and Modules - Cruise Control
  - Cruise Control Module
- Sensors and Switches - Cruise Control
- Vacuum Vent Valve
- Vehicle Speed Sensor/Transducer - Cruise Control
- Description and Operation
- Testing and Inspection
  - Preliminary Checks
  - Preliminary Inspection
- Adjustments
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
Instrument Panel, Gauges and Warning Indicators
- Audible Warning Device
- Brake Warning Indicator
- Charge Lamp/Indicator
- Cigarette Lighter
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Four Wheel Drive Indicator Lamp
- Fuel Distance/Mileage Module
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
  - Instrument Panel Bulb
  - Locations
  - Service and Repair
  - Technical Service Bulletins
- Malfunction Indicator Lamp
- Odometer
- Oil Pressure Gauge
- Oil Pressure Warning Lamp/Indicator
- Parking Brake Warning Switch
- Relays and Modules - Instrument Panel
  - Fuel Distance/Mileage Module
- Sensors and Switches - Instrument Panel
  - Dimmer Switch
  - Fuel Gauge Sender
  - Parking Brake Warning Switch
- Shift Indicator - A/T
- Speedometer Head
- Temperature Gauge
- Temperature Sensor (Gauge)
- Temperature Warning Lamp/Indicator
- Tire Monitoring System
  - Tire Pressure Monitor Receiver / Transponder
  - Technical Service Bulletins
- Transmission Shift Position Indicator Lamp
- Vacuum Gauge/Economy Meter
- Volt Meter Gauge
- Water In Fuel Indicator
- Description and Operation
  - Gauges
  - Instrument Panel
  - Instrument Panel Dimming
  - Variable Voltage Gauges
- Testing and Inspection
  - Initial Inspection and Diagnostic Overview
  - Symptom Related Diagnostic Procedures
  - Component Tests and General Diagnostics
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
    - Connector, Splicing and Terminal Repair
      - Pull-to-Seat Connectors
      - Push-to-Seat Connectors
    - Tech Tips
  - Connector Views
  - Electrical Diagrams
    - Digital Cluster
    - Instrument Panel Dimming
- Technical Service Bulletins
Lighting and Horns
- Backup Lamp
  - Backup Lamp Switch
  - Description and Operation
  - Testing and Inspection
    - Diagnostic Charts
    - Preliminary Checks
  - Diagrams
  - Technical Service Bulletins
- Brake Lamp
- Brake Light Switch
- Courtesy Lamp
  - Ash Tray Lamp
  - Testing and Inspection
- Daytime Running Lamp
  - Daytime Running Lamp Control Unit
  - Daytime Running Lamp Relay
- Dimmer Switch
- Fog/Driving Lamp
  - Fog/Driving Lamp Relay
  - Fog/Driving Lamp Switch
  - Description and Operation
    - With Daytime Running Lights (Canadian Only)
    - Without Daytime Running Lights
  - Testing and Inspection
    - With Daytime Running Lights (Canadian Only)
      - Preliminary Checks
      - Fog Lamps With Daytime Running Lamps Do Not Operate
    - Without Daytime Running Lamps (DRL)
      - Fog Lamps Do Not Operate
      - Preliminary Checks
  - Diagrams
  - Technical Service Bulletins
- Hazard Warning Lamps
  - Hazard Warning Flasher
  - Hazard Warning Switch
  - Description and Operation
  - Testing and Inspection
    - Initial Inspection and Diagnostic Overview
    - Component Tests and General Diagnostics
- Headlamp
  - Headlamp Dimmer Switch
  - Headlamp Switch
  - Description and Operation
    - With Daytime Running Lights (Canada Only)
    - Without Daytime Running Lamps (DRL)
  - Testing and Inspection
    - With Daytime Running Lights (Canadian Only)
    - Without Daytime Running Lamps (DRL)
  - Diagrams
  - Technical Service Bulletins
- Horn
  - Horn Relay
  - Description and Operation
  - Testing and Inspection
    - Initial Inspection and Diagnostic Overview
    - Symptom Related Diagnostic Procedures
      - Horn Sounds Continuously Without Depressing Horn Switch
      - Horns Will Not Operate
  - Locations
  - Diagrams
- License Plate Lamp
- Map Light
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
  - Daytime Running Lamp Control Unit
  - Daytime Running Lamp Relay
  - Fog/Driving Lamp Relay
  - Horn Relay
- Sensors and Switches - Lighting and Horns
  - Backup Lamp Switch
  - Brake Light Switch
  - Fog/Driving Lamp Switch
  - Hazard Warning Switch
  - Headlamp Dimmer Switch
  - Headlamp Switch
  - Turn Signal Switch
- Tail Lamp
- Trailer Lamps
- Turn Signals
  - Turn Signal Flasher
  - Turn Signal Lamp
  - Turn Signal Switch
  - Description and Operation
  - Testing and Inspection
    - Flow of Diagnosis
      - Turn Signals Do Not Operate
        Gauges Cluster
        Digital Cluster
      - Turn Signals Do Not Operate on One Side
    - Initial Inspection and Diagnostic Overview
  - Technical Service Bulletins
- Underhood Lamp
- Vanity Lamp
- Application and ID
- Description and Operation
  - Exterior Lamps
  - Circuit Operation - Center HIGH Mounted Stoplamp
  - Circuit Operation - Hazard Lamps
  - Circuit Operation - Park Lamps
  - Circuit Operation - Park, Tail, Marker, and License Lamps
  - Circuit Operation - Stoplamps
- Testing and Inspection
  - Center High Mounted Stoplamp Inoperative
  - None of the Rear Lamp Systems Operate
- Service and Repair
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
    - Connector, Splicing and Terminal Repair
      - Pull-to-Seat Connectors
      - Push-to-Seat Connectors
    - Tech Tips
  - Connector Views
  - Electrical Diagrams
    - Exterior Lamps
      - Standard I/P
      - With Digital I/P
    - Interior Lamps
      - With Trailer and Rear Dome
      - Without Trailer and Rear Dome
- Technical Service Bulletins
Windows and Glass
- Heated Glass Element
- Rear Defogger
- Relays and Modules - Windows and Glass
  - Heated Glass Element Relay
- Sensors and Switches - Windows and Glass
  - Heated Glass Element Switch
  - Power Window Switch
- Windows
- Windshield
- Technical Service Bulletins
Wiper and Washer Systems
- Relays and Modules - Wiper and Washer Systems
  - Wiper Control Module
- Sensors and Switches - Wiper and Washer Systems
  - Wiper Switch
- Windshield Washer Pump
- Wiper Blade
- Wiper Control Module
- Wiper Gear Box
- Wiper Motor
- Wiper Motor Linkage
- Wiper Switch
- Description and Operation
  - Front Wiper and Washer Systems
  - Rear Wiper/Washer System
- Testing and Inspection
  - Initial Inspection and Diagnostic Overview
    - Diagnostic Charts
      - Front
        Wipers Do Not Operate In Any Mode
        Wipers Operate at High Speed Only
        Wipers Operate at Low Speed Only
        Wipers Will Not Park
        Wipers Will Not Shut Off
      - Rear
        Rear Washer Will Not Operate
        Rear Wiper Does Not Operate
    - Preliminary Checks
  - Symptom Related Diagnostic Procedures
    - With Pulse
    - Without Pulse
- Diagrams
- Technical Service Bulletins
Application and ID
- Truck Body Identification
  - Description
  - View All Trucks
- Regular Production Option (RPO)
- Vehicle Identification Number (VIN)
Locations
- Component Locations
  - A - Z Component List
  - Vehicle Lift Points
- Connector Locations
- Fuse and Fusible Link Locations
- Ground Locations
  - Grounds By Number
    - G100
    - G101
    - G102
    - G104
    - G111
    - G124
    - G125
    - G126
    - G127
    - G130
    - G140
    - G150
    - G190
    - G350
    - G410
    - G440
    - G451
    - G452
      - Pickup
      - Utility
    - G475
    - G905
  - Text Description of Ground Locations
- Splice Locations
  - Splices By Number
    - S100-S199
      - S100
      - S101
      - S102
      - S103
      - S104
      - S105
      - S106
      - S107
      - S108
      - S109
      - S112
      - S117
      - S120
      - S121
      - S122
      - S123
      - S128
      - S129
      - S145
      - S147
      - S150
      - S151
    - S200-S299
      - S200
      - S201
      - S202
      - S203
      - S204
      - S205
      - S206
      - S207
      - S208
      - S209
      - S210
      - S211
      - S217
      - S218
      - S220
      - S222
      - S223
      - S225
      - S228
      - S230
      - S232
      - S233
      - S234
      - S235
      - S236
      - S240
      - S241
      - S242
      - S243
      - S247
      - S249
      - S253
      - S260
      - S293
    - S300-S399
      - S300
      - S320
      - S321
      - S323
      - S325
      - S326
      - S327
      - S350
      - S353
      - S365
    - S400-S499
      - S452
      - S453
      - S454
      - S455
      - S457
      - S458
        Pickup
        Utility
      - S459
      - S460
      - S467
      - S468
      - S496
      - S497
      - S498
      - S499
    - S500-S599
  - Text Description of Splice Locations
- Grommet Locations
Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
  - Connector, Splicing and Terminal Repair
    - Pull-to-Seat Connectors
    - Push-to-Seat Connectors
  - Tech Tips
- Exploded Views
- Connector Views
- Electrical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Fuse and Fusible Links
- Grounds
  - Grounds By Number
    - G100
    - G101
    - G102
    - G104
    - G111
    - G124
    - G125
    - G126
    - G127
    - G130
    - G140
    - G150
    - G190
    - G350
    - G410
    - G440
    - G451
    - G452
      - Pickup
      - Utility
    - G475
    - G905
  - Text Description of Ground Locations
- Splices
  - Splices By Number
    - S100-S199
      - S100
      - S101
      - S102
      - S103
      - S104
      - S105
      - S106
      - S107
      - S108
      - S109
      - S112
      - S117
      - S120
      - S121
      - S122
      - S123
      - S128
      - S129
      - S145
      - S147
      - S150
      - S151
    - S200-S299
      - S200
      - S201
      - S202
      - S203
      - S204
      - S205
      - S206
      - S207
      - S208
      - S209
      - S210
      - S211
      - S217
      - S218
      - S220
      - S222
      - S223
      - S225
      - S228
      - S230
      - S232
      - S233
      - S234
      - S235
      - S236
      - S240
      - S241
      - S242
      - S243
      - S247
      - S249
      - S253
      - S260
      - S293
    - S300-S399
      - S300
      - S320
      - S321
      - S323
      - S325
      - S326
      - S327
      - S350
      - S353
      - S365
    - S400-S499
      - S452
      - S453
      - S454
      - S455
      - S457
      - S458
        Pickup
        Utility
      - S459
      - S460
      - S467
      - S468
      - S496
      - S497
      - S498
      - S499
    - S500-S599
  - Text Description of Splice Locations
- Grommets
Specifications
- Electrical Specifications
- Mechanical Specifications
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
Technical Service Bulletins
Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- IAC System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
Diagnostic Trouble Codes