• Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle
• Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis
• An overview of each diagnostic category can be found here:Diagnostic Procedure Instructions

Symptom Byte Information:Symptom Byte List

Ignition On

The internal fault detection is handled inside the control module. No external circuit diagnosis is involved.

DTCs listed in the DTC Descriptor category=Type B DTC

DTCs listed in the DTC Descriptor category=Type B DTC

DTC P0070 is set in case the battery was disconnected or the control module was re-programmed.

Instrument Cluster Schematics

Master Electrical Component List

Instrument Cluster Description and Operation

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Control Module References

1. Ignition » On / Vehicle » In Service Mode
2. Verify DTC B0158 is not set
• If DTC B0158 is set

  Refer to:Diagnostic Trouble Code (DTC) List - Vehicle

• If the DTC is not set
3. Verify DTC P0070 is not set
• If the DTC is not set

  All OK.

• If DTC P0070 is set
4. ClearDTC P0070
5. Verify the DTC does not set.
• If the DTC is not set

  All OK.

• If DTC P0070 is set
6. Ignition/Vehicle » Off — For greater than 3 h

   Verify the following parameters are within 15°C (59°F) of each other:

• IAT Sensor 1
• Ambient Air Temperature
• If not in the specified range

  Replace the component:B9 Ambient Air Temperature Sensor

• If in the specified range
7. Verify DTC P0070 is not set
• If the DTC is not set

  All OK.

• If DTC P0070 is set
8. Perform all necessary programming and setup procedures for the control module:P16 Instrument Cluster
9. Verify DTC P0070 is not set
• If the DTC is not set

  All OK.

• If DTC P0070 is set
10. Perform all necessary programming and setup procedures for the control module:K9 Body Control Module
11. Verify DTC P0070 is not set
• If the DTC is not set

  All OK.

• If DTC P0070 is set
12. Perform all necessary programming and setup procedures for the control module:K20 Engine Control Module
13. Verify DTC P0070 is not set
• If the DTC is not set

  All OK.

• If DTC P0070 is set
14. Replace the control module: K20 Engine Control Module

Perform the Diagnostic Repair Verification after completing the repair:Diagnostic Repair Verification

• For control module replacement, programming, and setup refer to:Control Module References