Diagnostic Information And Procedures

• Diagnostic Information and Procedures
  • DTC B097B: Power Mode Start Switch Circuit
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B097C: Power Mode Run/Start Indicator Circuit
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B1370: Control Module Ignition On and Start Circuit
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1370-B1379, B1380-B1389, or B1440-B1443: Body Control Module (BCM) Ignition Circuits
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Actions Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B1445: Control Module Voltage Output Circuit (Body Control Module)
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1445: Device Voltage Output 1 Circuit (Power Supply Transformer)
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B144A: RUN Power Relay Circuit
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B144B: Run/Crank Power Relay Circuit
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B144D: Device Voltage Output 2 Circuit
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1451: Accessory Power Circuit
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B147E or B147F: Battery Saver Relay Set/Reset Secondary Circuit (With LUV)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B147E or B147F: Battery Saver Relay Set/Reset Secondary Circuit (With LE2)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B305E: Interruptible RAP Relay Circuit
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC P156D: DC/DC Converter Ignition Switch Run/Start Position Signal Message Counter Incorrect
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • DTC P2534 or P2535: Ignition On/Start Switch Circuit Low/High Voltage
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC P2537: Ignition Accessory Switch Circuit Low Voltage
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC P305B or P305C: DC/DC Converter Ignition On/Start Switch Circuit High/Low Voltage
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Symptoms - Wiring Systems
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Ignition Can/Cannot Be Turned Off with Transmission in Any Gear (Without BTM)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Ignition Can/Cannot Be Turned Off with Transmission in Any Gear (With BTM)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Ignition Mode Switch Indicator Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • Power Mode Mismatch
    • Diagnostic Instructions
    • Circuit/System Description Without BTM
    • Circuit/System Description With BTM
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • Retained Accessory Power Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information without BTM
    • Diagnostic Fault Information with BTM
    • Circuit/System Description without BTM.
    • Circuit/System Description with BTM.
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing (Without BTM)
    • Circuit/System Testing (With BTM)
    • Repair Instructions
  • Vehicle Will Not Change Power Mode
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • General Electrical Diagnosis
    • Basic Knowledge Required
  • Checking Aftermarket Accessories
  • Circuit Testing
  • Using Connector Test Adapters
  • Probing Electrical Connectors
    • Special Tools
    • Front probe
    • Backprobe
  • Troubleshooting with a Digital Multimeter
    • Special Tools
    • Digital Multimeter (DMM) Basic Requirements
  • Troubleshooting with a Test Lamp
  • Using Fused Jumper Wires
  • Measuring Voltage
  • Measuring Voltage Drop
  • Measuring Frequency
  • Testing Ground and Low Reference Circuits
  • Testing for Continuity
    • Special Tools
    • With a Digital Multimeter (DMM)
    • With a Test Lamp
  • Testing for Short to Ground
    • Notes
    • With a Digital Multimeter (DMM)
    • With a Test Lamp
    • Fuse Powering Several Loads
  • Testing for a Short to Voltage
  • Testing for Intermittent Conditions and Poor Connections
    • Notes
    • Testing for Terminal Fretting
    • Testing for Proper Terminal Contact
    • Control Module/Component Voltage and Grounds
    • Temperature Sensitivity
    • Electromagnetic Interference and Electrical Noise
    • Incorrect Control Module
  • Inducing Intermittent Fault Conditions
    • Notes
    • High Temperature Conditions
    • Low Temperature Conditions
    • Duplicating Failure Conditions
  • Testing for Electrical Intermittents
  • Scan Tool Snapshot Procedure
    • Reviewing Stored Data in Global Diagnostic System (GDS)
  • Circuit Protection - Fuses
  • Circuit Protection - Circuit Breakers
  • Circuit Protection - Fusible Links
  • Ignition Key Cannot Be Inserted, Rotated, or Removed from the Ignition Lock Cylinder
  • Wiring Repairs
  • Connector Repairs
    • Notes
    • Connector Anatomy
    • Identifying Connectors