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
  - Power Door Lock 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 - Lighting and Horns
- 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 - Windows and Glass
  - Power Window Relay
- Relays and Modules - Wiper and Washer Systems
  - Wiper Control Module
Sensors and Switches
- Sensors and Switches - Body and Frame
  - Power Door Lock Switch
  - Power Mirror Switch
- 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
- 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 - Steering and Suspension
  - Sensors and Switches - Steering
    - Power Steering Pressure Switch
- Sensors and Switches - Transmission and Drivetrain
  - Sensors and Switches - A/T
- Sensors and Switches - Windows and Glass
  - Power Window Switch
- Sensors and Switches - Wiper and Washer Systems
  - Windshield Washer Switch
  - Wiper Switch
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
- 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
  - Pictoral Views
  - Underhood Block Diagram
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
  - Actuators and Solenoids - A/T
- Automatic Transmission/Transaxle
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Flywheel
- Lamps and Indicators - Transmission and Drivetrain
  - Lamps and Indicators - A/T
    - Shift Indicator - A/T
- Manual Transmission/Transaxle
- 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
  - Technical Service Bulletins
- 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
- Circuit Breaker
- Diode
- Electrical Accessory Panel
- Fuse
- Fuse Block
- Ground Strap
- Grounding Point
- Multiple Junction Connector
- 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
- Sensors and Switches - Steering and Suspension
  - Sensors and Switches - Steering
    - Power Steering Pressure Switch
- Steering
- Suspension
- Wheels and Tires
- Specifications
  - Mechanical Specifications
    - Front Suspension
    - Rear Suspension
  - Fluid Type Specifications
- Technical Service Bulletins
Heating and Air Conditioning
- Accumulator HVAC
- Air Conditioning Switch
- Air Door
  - Air Door Actuator / Motor
- Air Duct
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Compressor HVAC
  - Compressor Clutch
  - Compressor Clutch Bearing
  - Compressor Clutch Coil
  - Compressor Clutch Hub
  - Compressor Shaft Seal
  - Description and Operation
    - General Description
    - Compressor Controls
  - Testing and Inspection
    - Initial Inspection and Diagnostic Overview
      - Circuit Operation
      - Preliminary Checks
    - Symptom Related Diagnostic Procedures
      - Part 1 of 2
      - Part 2 of 2
  - Locations
    - Component Locations
    - Connector Locations
      - Air Conditioning Compressor
      - A/C Low Pressure Switch
  - Service and Repair
  - Diagrams
  - Technical Service Bulletins
- Compressor Clutch Relay
- Condenser HVAC
- Control Assembly
- Coupler HVAC
  - A/C Coupler O-ring
- Evaporator Core
- Expansion Block/Orifice Tube
- Heater Core
- Heater Hose
- High Pressure Safety Valve HVAC
- Hose/Line HVAC
- Housing Assembly 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
  - Blower Motor 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
  - Initial Inspection and Diagnostic Overview
  - Symptom Related Diagnostic Procedures
  - Component Tests and General Diagnostics
- Locations
  - Component Locations
    - A/C Compressor Control Relay
    - Heater Harness
  - Connector Locations
    - Air Conditioning Compressor
    - A/C Low Pressure Switch
- Service and Repair
  - Air Conditioning System Odor Diagnosis
  - Check System For Insufficient Usage
  - Oil Charge
  - Proper Flushing Procedures
  - Recovery/Recycling, Adding Oil, Evacuating/Recharging
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
  - 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 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 Lamps
- 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
  - Power Door Lock Relay
- Roof and Associated Components
  - Sun Shade
- Seats
- Sensors and Switches - Body and Frame
  - Power Door Lock Switch
  - Power Mirror Switch
- 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
- Locations
- Diagrams
- Technical Service Bulletins
Instrument Panel, Gauges and Warning Indicators
- Air Conditioning Indicator Lamp
- Audible Warning Device
- Brake Warning Indicator
- Charge Lamp/Indicator
- Cigarette Lighter
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Door Switch
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Malfunction Indicator Lamp
- Odometer
- Oil Pressure Gauge
- Oil Pressure Warning Lamp/Indicator
- Parking Brake Warning Switch
- Seat Belt Reminder Lamp
- Sensors and Switches - Instrument Panel
  - Dimmer Switch
  - Door 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
- Description and Operation
  - Circuit Operation
  - Gauge Failures
- Testing and Inspection
  - Initial Inspection and Diagnostic Overview
  - Symptom Related Diagnostic Procedures
    - A Symptom Table - Instrument Cluster
    - Diagnosis By Symptom - Gauges and Warning Indicators
  - Component Tests and General Diagnostics
    - Circuit Operation - Instrument Cluster
    - Circuit Operation - Instrument Panel Dimming
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
  - Connector Views
  - Electrical Diagrams
    - Instrument Cluster
    - Instrument Panel Dimming
- Technical Service Bulletins
Lighting and Horns
- Backup Lamp
  - Backup Lamp Switch
  - Description and Operation
  - Testing and Inspection
  - Locations
  - Diagrams
  - Technical Service Bulletins
- Brake Lamp
- Brake Light Switch
- Center Mounted Brake Lamp
  - Center Mounted Brake Lamp Relay
  - Locations
  - Diagrams
- Courtesy Lamp
  - Glove Box Lamp
  - Locations
  - Diagrams
- Daytime Running Lamp
  - Daytime Running Lamp Relay
  - Description and Operation
  - Testing and Inspection
    - Initial Inspection and Diagnostic Overview
      - Circuit Operation
      - Preliminary Checks
    - Symptom Related Diagnostic Procedures
      - Daytime Running Lamps (DRL) Are Inoperative
      - Daytime Running Lamps Stay on
  - Locations
  - Diagrams
- Dimmer Switch
- Dome Lamp
- Door Switch
- Fog/Driving Lamp
  - Fog/Driving Lamp Relay
  - Fog/Driving Lamp Switch
  - Description and Operation
    - Without Daytime Running Lamps
    - With Daytime Running Lamps
  - Testing and Inspection
    - With Daytime Running Lamps (DRL)
    - Without Daytime Running Lamps (DRL)
  - Locations
    - Fog Lamp, LH
    - Fog Lamp, RH
  - Diagrams
  - Technical Service Bulletins
- Hazard Warning Lamps
  - Hazard Warning Flasher
  - Hazard Warning Switch
  - Diagrams
- Headlamp
  - Headlamp Dimmer Switch
  - Headlamp Relay
  - Headlamp Switch
  - Description and Operation
    - With Daytime Running Lights (DRL)
    - Without Daytime Running Lamps (DRL)
  - Testing and Inspection
    - Symptom Related Diagnostic Procedures
      - High Beam Headlamps Are Inoperative
      - Low Beam Headlight(S) Do Not Operate
    - Component Tests and General Diagnostics
      - With Daytime Running Lamps
        Circuit Operation
        Diagnostic Charts
        Daytime Running Lamps Do Not Operate
        Daytime Running Lamps Stay on
        High Beam Headlamps Are Inoperative
        Low Beam Headlamps Are Inoperative
        Preliminary Checks
      - Without Daytime Running Lamps (DRL)
        Headlamps and Fog Lamps Circuit Operation
        Diagnostic Charts
        Headlamps Do Not Illuminate Low Beams-One of Both Sides
        High Beam Headlamps Are Inoperative
        Preliminary Checks
  - Locations
    - Headlamp, LH
    - Headlamp, RH
  - Service and Repair
  - Diagrams
  - Technical Service Bulletins
- Horn
  - Horn Relay
  - Description and Operation
  - Testing and Inspection
    - Initial Inspection and Diagnostic Overview
      - Circuit Operation
      - Preliminary Checks
    - Symptom Related Diagnostic Procedures
      - Horn Sounds Continuously
      - Horns Will Not Operate
  - Locations
  - Diagrams
- License Plate Lamp
- Map Light
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
  - Center Mounted Brake Lamp Relay
  - Daytime Running Lamp Relay
  - Fog/Driving Lamp Relay
  - Headlamp Relay
  - Horn Relay
- Sensors and Switches - Lighting and Horns
  - Backup Lamp Switch
  - Brake Light Switch
  - Door 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
  - Diagrams
    - Park and Turn Signal Lamps
      - LH
      - RH
    - Tail, Stop and Turn Lamp
      - LH
      - RH
  - Technical Service Bulletins
- Underhood Lamp
- Vanity Lamp
- Application and ID
- Description and Operation
  - Interior Lamps
  - Instrument Panel Dimming
  - Exterior Lamps
  - Circuit Operation - Exterior Lights
  - Circuit Operation - Interior Lights
- Testing and Inspection
  - Initial Inspection and Diagnostic Overview
    - Preliminary Checks - Exterior Lights
    - Preliminary Checks - Interior Lights
  - Symptom Related Diagnostic Procedures
    - Diagnosis By Symptom - Exterior Lights
    - Diagnosis By Symptom - Interior Lights
- Diagrams
  - Diagram Information and Instructions
  - Diagnostic Aids
  - Connector Views
  - Electrical Diagrams
    - Exterior Lamps
      - Stop,Turn and Hazard Lamps
      - Tail/License
    - Interior Lamps
      - Base
      - With Auxiliary Lighting
- Technical Service Bulletins
Windows and Glass
- Heated Glass Element
- Rear Defogger
- Relays and Modules - Windows and Glass
  - Power Window Relay
- Sensors and Switches - Windows and Glass
  - 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
  - Windshield Washer Switch
  - Wiper Switch
- Windshield Washer Pump
- Windshield Washer Switch
- Wiper Arm
- Wiper Blade
- Wiper Control Module
- Wiper Gear Box
- Wiper Motor
- Wiper Motor Linkage
- Wiper Switch
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
Application and ID
- Truck Body Identification
- Regular Production Option (RPO)
- Vehicle Identification Number (VIN)
Locations
- Component Locations
  - A - Z Component List
  - Vehicle Lift Points
- Connector Locations
- Ground Locations
- Splice Locations
  - Splices By Number
  - Text Description of Splice Locations
- Grommet Locations
- Harness Locations
Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Exploded Views
- Connector Views
- Electrical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
  - Emission Control Systems
  - Heating and Air Conditioning
- Components
- Connectors
- Grounds
- Splices
  - Splices By Number
  - Text Description of Splice Locations
- Grommets
- Harness
Specifications
- Electrical Specifications
- Mechanical Specifications
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
Technical Service Bulletins
Diagnostic Trouble Codes