Diagnostic Strategies

Flow Of Diagnosis:

1. Get accurate description of complaint. Road test vehicle to verify. Perform underhood inspection. For further information use the DRIVEABILITY WORKSHEET and VEHICLE REPAIR HISTORY forms below.
2. Check TSB'S for manual updates, testing procedures, warranty and recall information.
3. Refer to Powertrain Management/Computers and Control Systems/Testing and Inspection/Procedures.
4. Refer to Powertrain Management/Computers and Control Systems/Testing and Inspection/Procedures.
NOTE: The DRB II or an equivalent scan tool is required for proper diagnosis and testing of the vehicle.
5. Refer to Powertrain Management/Computers and Control Systems/Testing and Inspection/Procedures.
NOTE: The DRB II or an equivalent scan tool is required for proper diagnosis and testing of the vehicle.

Driveability Worksheet:

Driveability Worksheet:

DRIVEABILITY WORKSHEET

Vehicle Repair History:

Vehicle Repair History:

VEHICLE REPAIR INFORMATION