Six-Step Troubleshooting Procedure
SIX-STEP TROUBLESHOOTING PROCEDUREDiagnosis of the Powertrain Control Module (PCM) is done in six basic steps:
1. Verification of complaint.
2. Verification of any related symptoms.
3. Symptom analysis.
4. Problem isolation.
5. Repair of isolated problem.
6. Verification of proper operation.