Flow of Diagnosis

Flow Of Diagnosis:

1. Verify customer complaint. It is important that you get an accurate description of the problem. What condition is the engine under when the problem occurs. Verify the complaint by road testing. For further description use DRIVEABILITY WORKSHEET and VEHICLE REPAIR HISTORY forms below.
2. Check TSB's for any aids in diagnosis and testing and warranty and recall information.
3. Select appropriate symptom.
4. Testing for corresponding symptom are in TESTING PROCEDURES. If after using these tests the problem still persists refer to COMPUTERIZED ENGINE CONTROLS/DIAGNOSIS AND TESTING for further testing procedures.

Driveability Worksheet:

Driveability Worksheet:

DRIVEABILITY WORKSHEET

Vehicle Repair History:

Vehicle Repair History:

VEHICLE REPAIR HISTORY