Introduction

The procedures shown include all specifications, instructions and graphics need to diagnose Powertrain Control Module (PCM) problems, including:
- No Start
- Diagnostic Trouble Codes
- No Trouble Code problems

SIX-STEP TROUBLESHOOTING PROCEDURE
Diagnosis of the PCM is done in six basic steps:
- Verification of complaint
- Verification of any related symptoms
- Symptom analysis
- Problem isolation
- Repair of isolated problem
- Verification of proper operation