Repair and Diagnosis

• A L L Diagnostic Trouble Codes ( DTC )
• Relays and Modules
  • Relays and Modules - HVAC
    • Blower Motor Relay
    • Compressor Clutch Relay
    • Condenser Fan Motor Relay
    • System Relay
  • Relays and Modules - Power and Ground Distribution
    • Power Distribution Relay
  • Relays and Modules - Powertrain Management
    • Relays and Modules - Computers and Control Systems
      • Engine Control Module
• Sensors and Switches
  • Sensors and Switches - Cooling System
    • Engine - Coolant Temperature Sensor/Switch
      • Coolant Temperature Sensor/Switch (For Computer)
      • Radiator Cooling Fan Temperature Sensor / Switch
  • Sensors and Switches - HVAC
    • Air Conditioning Switch
    • Evaporator Temperature Sensor / Switch
    • Refrigerant Pressure Sensor / Switch
  • Sensors and Switches - Powertrain Management
    • Sensors and Switches - Computers and Control Systems
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
      • Camshaft Position Sensor
      • Coolant Temperature Sensor/Switch (For Computer)
      • Crankshaft Position Sensor
      • Fuel Level Sensor
      • Fuel Tank Pressure Sensor
      • Knock Sensor
      • Manifold Pressure/Vacuum Sensor
      • Oxygen Sensor
    • Sensors and Switches - Fuel Delivery and Air Induction
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
    • Sensors and Switches - Ignition System
      • Camshaft Position Sensor
      • Crankshaft Position Sensor
      • Knock Sensor
• Maintenance
  • Tune-up and Engine Performance Checks
    • Fuel Pressure
    • Air Cleaner Housing
      • Air Filter Element
    • Fuel Filter
      • Fuel Pressure Release
    • Firing Order
    • Ignition Cable
    • Spark Plug
    • Service Precautions
  • Drive Belt
  • Filters
    • Air Cleaner Housing
      • Air Filter Element
    • Cabin Air Filter / Purifier
    • Fuel Filter
      • Fuel Pressure Release
  • Fluids
    • Refrigerant Oil
  • Service Reminder Indicators
    • Malfunction Indicator Lamp
• Engine, Cooling and Exhaust
  • Engine
    • Actuators and Solenoids - Engine
      • Variable Valve Timing Actuator
    • Camshaft, Lifters and Push Rods
      • Variable Valve Timing Actuator
    • Cylinder Head Assembly
      • Fuel Pressure Release
    • Drive Belts, Mounts, Brackets and Accessories
      • Drive Belt
    • Timing Components
      • Variable Valve Timing
        • Variable Valve Timing Actuator
    • Tune-up and Engine Performance Checks
      • Fuel Pressure
      • Air Cleaner Housing
        • Air Filter Element
      • Fuel Filter
        • Fuel Pressure Release
      • Firing Order
      • Ignition Cable
      • Spark Plug
      • Service Precautions
    • Service Precautions
      • Technician Safety Information
      • Vehicle Damage Warnings
        • Engine Emissions Notice
        • Engine Lifting Notice
        • Engine Mounting Notice
    • Testing and Inspection
  • Cooling System
    • Radiator Cooling Fan
      • Radiator Cooling Fan Temperature Sensor / Switch
    • Engine - Coolant Temperature Sensor/Switch
      • Coolant Temperature Sensor/Switch (For Computer)
      • Radiator Cooling Fan Temperature Sensor / Switch
    • Heater Core
    • Sensors and Switches - Cooling System
      • Engine - Coolant Temperature Sensor/Switch
        • Coolant Temperature Sensor/Switch (For Computer)
        • Radiator Cooling Fan Temperature Sensor / Switch
• Powertrain Management
  • Relays and Modules - Powertrain Management
    • Relays and Modules - Computers and Control Systems
      • Engine Control Module
  • Sensors and Switches - Powertrain Management
    • Sensors and Switches - Computers and Control Systems
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
      • Camshaft Position Sensor
      • Coolant Temperature Sensor/Switch (For Computer)
      • Crankshaft Position Sensor
      • Fuel Level Sensor
      • Fuel Tank Pressure Sensor
      • Knock Sensor
      • Manifold Pressure/Vacuum Sensor
      • Oxygen Sensor
    • Sensors and Switches - Fuel Delivery and Air Induction
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
    • Sensors and Switches - Ignition System
      • Camshaft Position Sensor
      • Crankshaft Position Sensor
      • Knock Sensor
  • Tune-up and Engine Performance Checks
    • Fuel Pressure
    • Air Cleaner Housing
      • Air Filter Element
    • Fuel Filter
      • Fuel Pressure Release
    • Firing Order
    • Ignition Cable
    • Spark Plug
    • Service Precautions
  • Computers and Control Systems
    • Accelerator Pedal Position Sensor
    • Air Flow Meter/Sensor
    • Camshaft Position Sensor
    • Coolant Temperature Sensor/Switch (For Computer)
    • Crankshaft Position Sensor
    • Electronic Throttle Actuator
    • Engine Control Module
    • Fuel Level Sensor
    • Fuel Tank Pressure Sensor
    • Information Bus
    • Knock Sensor
    • Malfunction Indicator Lamp
    • Manifold Pressure/Vacuum Sensor
    • Oxygen Sensor
    • Relays and Modules - Computers and Control Systems
      • Engine Control Module
    • Sensors and Switches - Computers and Control Systems
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
      • Camshaft Position Sensor
      • Coolant Temperature Sensor/Switch (For Computer)
      • Crankshaft Position Sensor
      • Fuel Level Sensor
      • Fuel Tank Pressure Sensor
      • Knock Sensor
      • Manifold Pressure/Vacuum Sensor
      • Oxygen Sensor
    • Variable Valve Timing Actuator
    • Service Precautions
    • Description and Operation
      • Camshaft Actuator System Description
      • Electronic Ignition (EI) System Description
      • Throttle Actuator Control (TAC) System Description
    • Testing and Inspection
      • Initial Inspection and Diagnostic Overview
      • Symptom Related Diagnostic Procedures
        • Backfire
        • Cuts Out, Misses
        • Engine Cranks But Does Not Run
        • Detonation/Spark Knock
        • Dieseling, Run-On
        • Hard Start
        • Hesitation, Sag, Stumble
        • Lack of Power, Sluggishness, or Sponginess
        • Poor Fuel Economy
        • Poor Fuel Fill Quality
        • Rough, Unstable, or Incorrect Idle and Stalling
        • Surges/Chuggles
        • Symptoms - Engine Controls
      • Component Tests and General Diagnostics
        • Malfunction Indicator Lamp (MIL) Always On
        • Malfunction Indicator Lamp (MIL) Inoperative
      • Scan Tool Testing and Procedures
        • Scan Tool Data Definitions
          • Part 1
          • Part 2
          • Part 3
        • Scan Tool Data List
        • Scan Tool Output Controls
      • Monitors, Trips, Drive Cycles and Readiness Codes
        • Inspection/Maintenance (I/M) Complete System Set Procedure
        • Inspection/Maintenance (I/M) System Check
        • Inspection/Maintenance (I/M) System DTC Table
      • Programming and Relearning
    • Diagrams
      • Diagnostic Aids
        • Circuit Protection - Circuit Breakers
        • Circuit Testing
        • Connector Repairs
        • Flat Wire Repairs
        • Inducing Intermittent Fault Conditions
        • Scantool Snapshot Procedure
        • Using Connector Test Adapters
        • Using Fused Jumper Wires
        • Wiring Repairs
      • Electrical Diagrams
        • Engine Controls Schematics
        • Engine Controls Schematic Icons
    • Specifications
  • Emission Control Systems
    • Evaporative Emissions System
      • Canister Purge Solenoid
      • Evaporative Emission Control Canister
        • Canister Vent Valve
        • Service and Repair
      • Service Precautions
        • Technician Safety Information
        • Vehicle Damage Warnings
          • Clean, Dry, Low Pressure Gas Source Notice
          • Fuel and Evaporative Emission (EVAP) Hose/Pipe Connection Cleaning Notice
      • Description and Operation
      • Testing and Inspection
      • Service and Repair
        • Procedures
        • Removal and Replacement
    • Service Precautions
      • Emission Modification Notice
      • Engine Emissions Notice
    • Diagrams
      • Emission Hose Routing Diagram
      • Evaporative Emissions (EVAP) Hose Routing Diagram
  • Fuel Delivery and Air Induction
    • Fuel Pressure
    • Fuel Pressure Release
    • Accelerator Pedal Position Sensor
    • Air Cleaner Housing
      • Air Filter Element
    • Air Flow Meter/Sensor
    • Fuel
    • Fuel Filter
      • Fuel Pressure Release
    • Fuel Injector
    • Fuel Line Coupler
    • Fuel Pump
      • Fuel Pressure
      • Testing and Inspection
    • Fuel Rail
    • Fuel Return Line
    • Fuel Supply Line
    • Fuel Tank
    • Fuel Tank Unit
    • Sensors and Switches - Fuel Delivery and Air Induction
      • Accelerator Pedal Position Sensor
      • Air Flow Meter/Sensor
    • Throttle Body
    • Service Precautions
      • Technician Safety Information
        • Fuel Gage Leak Caution
        • Fuel Pipe Fitting Caution
        • Fuel Storage Caution
        • Safety Goggles and Fuel Caution
      • Vehicle Damage Warnings
    • Description and Operation
    • Testing and Inspection
      • Initial Inspection and Diagnostic Overview
      • Symptom Related Diagnostic Procedures
        • Backfire
        • Cuts Out, Misses
        • Detonation/Spark Knock
        • Hard Start
        • Hesitation, Sag, Stumble
        • Poor Fuel Economy
    • Tools and Equipment
  • Ignition System
    • Firing Order
    • Camshaft Position Sensor
    • Crankshaft Position Sensor
    • Ignition Cable
    • Ignition Coil
    • Knock Sensor
    • Sensors and Switches - Ignition System
      • Camshaft Position Sensor
      • Crankshaft Position Sensor
      • Knock Sensor
    • Spark Plug
    • Description and Operation
    • Testing and Inspection
      • Symptom Related Diagnostic Procedures
        • Backfire
        • Cuts Out, Misses
        • Detonation/Spark Knock
        • Hard Start
        • Hesitation, Sag, Stumble
        • Poor Fuel Economy
        • Surges/Chuggles
      • Component Tests and General Diagnostics
    • Specifications
  • Service Precautions
  • Locations
  • Diagrams
  • Specifications
    • Mechanical Specifications
    • Pressure, Vacuum and Temperature Specifications
  • Tools and Equipment
• Transmission and Drivetrain
• Brakes and Traction Control
  • Antilock Brakes / Traction Control Systems
  • Service Precautions
    • Technician Safety Information
      • Brake Dust Caution
      • Brake Fluid Irritant Caution
      • Firm Brake Pedal Caution
    • Vehicle Damage Warnings
      • Brake Pipe Replacement Caution
      • Brake Fluid Effects on Paint and Electrical Components Notice
• Starting and Charging
  • Battery
  • Power and Ground Distribution
    • Power Distribution Relay
    • Relays and Modules - Power and Ground Distribution
      • Power Distribution Relay
    • Testing and Inspection
      • Measuring Frequency
      • Measuring Voltage
      • Probing Electrical Connectors
      • Testing For Continuity
      • Testing For Electrical Intermittents
      • Testing For Intermittent Conditions and Poor Connections
      • Testing For Short to Ground
      • Testing For Short to Voltage
      • Troubleshooting With A Digital Multimeter
    • Service and Repair
      • Splicing Copper Wire Using Splice Clips
      • Circuit Protection - Fuses
      • Circuit Protection - Fusible Links
      • GMLAN Wiring Repairs
      • Heated Oxygen Sensor (H02S) Wiring Repairs
      • High Temperature Wiring Repairs
      • Measuring Voltage Drop
      • Repairing Connector Terminals
      • Repairing Damaged Wire Insulation
      • Splicing Copper Wire Using Splice Sleeves
      • Splicing Inline Harness Diodes
      • Splicing Twisted or Shielded Cable
      • Troubleshooting With A Test Lamp
• Power and Ground Distribution
  • Power Distribution Relay
  • Relays and Modules - Power and Ground Distribution
    • Power Distribution Relay
  • Testing and Inspection
    • Measuring Frequency
    • Measuring Voltage
    • Probing Electrical Connectors
    • Testing For Continuity
    • Testing For Electrical Intermittents
    • Testing For Intermittent Conditions and Poor Connections
    • Testing For Short to Ground
    • Testing For Short to Voltage
    • Troubleshooting With A Digital Multimeter
  • Service and Repair
    • Splicing Copper Wire Using Splice Clips
    • Circuit Protection - Fuses
    • Circuit Protection - Fusible Links
    • GMLAN Wiring Repairs
    • Heated Oxygen Sensor (H02S) Wiring Repairs
    • High Temperature Wiring Repairs
    • Measuring Voltage Drop
    • Repairing Connector Terminals
    • Repairing Damaged Wire Insulation
    • Splicing Copper Wire Using Splice Sleeves
    • Splicing Inline Harness Diodes
    • Splicing Twisted or Shielded Cable
    • Troubleshooting With A Test Lamp
• Heating and Air Conditioning
  • Air Conditioning Switch
  • Air Door
  • Air Duct
  • Air Register
  • Blower Motor
  • Blower Motor Relay
  • Blower Motor Resistor
  • Cabin Air Filter / Purifier
  • Compressor HVAC
  • Compressor Clutch Relay
  • Condenser HVAC
  • Condenser Fan
  • Condenser Fan Motor Relay
  • Control Assembly
  • Evaporator Core
  • Evaporator Temperature Sensor / Switch
  • Expansion Valve
  • Heater Core
  • Housing Assembly HVAC
  • Receiver Dryer
  • Refrigerant Oil
  • Refrigerant Pressure Sensor / Switch
  • Relays and Modules - HVAC
    • Blower Motor Relay
    • Compressor Clutch Relay
    • Condenser Fan Motor Relay
    • System Relay
  • Sensors and Switches - HVAC
    • Air Conditioning Switch
    • Evaporator Temperature Sensor / Switch
    • Refrigerant Pressure Sensor / Switch
  • System Relay
  • Service Precautions
    • Breathing R-134a Caution
    • Heater, Ventilation System
    • Air Conditioning System
  • Application and ID
  • Description and Operation
    • Heater, Ventilation System
    • Air Conditioning System
  • Testing and Inspection
    • Symptom Related Diagnostic Procedures
      • Heater, Ventilation System
      • Air Conditioning System
    • Component Tests and General Diagnostics
      • Air Conditioning System
        • Checking Refrigerant System With Manifold Gauge
        • Magnetic Clutch System
        • Condenser Fan System
      • Heater, Ventilation System
  • Locations
    • Heater, Ventilation System
    • Air Conditioning System
  • Diagrams
    • Diagnostic Aids
      • Circuit Protection - Circuit Breakers
      • Circuit Testing
      • Connector Repairs
      • Flat Wire Repairs
      • Inducing Intermittent Fault Conditions
      • Scantool Snapshot Procedure
      • Using Connector Test Adapters
      • Using Fused Jumper Wires
      • Wiring Repairs
    • Connector Views
      • Heater, Ventilation System
      • Air Conditioning System
    • Electrical Diagrams
      • Heater, Ventilation System
      • Air Conditioning System
  • Specifications
    • Specifications
    • Fastener Torques
  • Tools and Equipment
• Body and Frame
  • Paint, Striping and Decals
    • Paint
  • Service Precautions
    • Approved Equipment for Collision Repair Caution
    • Safety Glasses Caution
    • Glass and Sheet Metal Handling Caution
• Instrument Panel, Gauges and Warning Indicators
  • Malfunction Indicator Lamp
• Service Precautions
  • Technician Safety Information
    • Fuel and EVAP Pipe Caution
    • Assistant Driving Caution
    • Eye Protection Caution
    • Moving Parts and Hot Surfaces Caution
    • Road Test Caution
    • Safety Glasses Caution
    • Safety Glasses and Compressed Air Caution
    • Vehicle Lifting Caution
    • Work Stall Test Caution
    • Definition of Caution, Notice, and Important
  • Vehicle Damage Warnings
    • Definition of Caution, Notice, and Important
    • Disengaging Connectors Notice
    • Fastener Notice
    • ECM, TCM, PIM and ESD Notice
    • Fuel and EVAP Pipe Caution
    • Handling ESD Sensitive Parts Notice
    • Handling IAC Valve Notice
    • Ignition Off When Disconnecting Battery Notice
    • Ignition Switch, ECM, TCM, and PIM Connectors Notice
    • Installing Hoses Without Twists or Bend Notice
    • Road Test Caution
    • Work Stall Test Caution
    • Sealant Notice
    • Service Programming System (SPS) Notice
    • Test Lamp to Ignition Control Module Circuit Connector Notice
    • Test Probe Notice
• Testing and Inspection
  • Initial Inspection and Diagnostic Overview
  • Symptom Related Diagnostic Procedures
    • Scan Tool Does Not Communicate With High Speed GMLAN Device
    • Scan Tool Does Not Power Up
• Diagrams
  • Diagnostic Aids
    • Circuit Protection - Circuit Breakers
    • Circuit Testing
    • Connector Repairs
    • Flat Wire Repairs
    • Inducing Intermittent Fault Conditions
    • Scantool Snapshot Procedure
    • Using Connector Test Adapters
    • Using Fused Jumper Wires
    • Wiring Repairs
  • Connector Views
    • Heating and Air Conditioning
      • Heater, Ventilation System
      • Air Conditioning System
    • Powertrain Management
      • System Diagram
      • Engine Control Module
  • Electrical Diagrams
    • Computers and Control Systems
      • Engine Controls Schematics
      • Engine Controls Schematic Icons
    • Heating and Air Conditioning
      • Heater, Ventilation System
      • Air Conditioning System
  • Vacuum and Vapor Hose Diagrams
    • Emission Control Systems
      • Emission Hose Routing Diagram
      • Evaporative Emissions (EVAP) Hose Routing Diagram
• Specifications
  • Mechanical Specifications
    • Heating and Air Conditioning
      • Specifications
      • Fastener Torques
    • Powertrain Management
      • System Specifications
      • Ignition System
        • System Specifications
        • Firing Order
        • Spark Plug
  • Pressure, Vacuum and Temperature Specifications
    • Powertrain Management
      • System Specifications
      • Computers and Control Systems