System Diagnosis

^ Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage check (refer to "General Troubleshooting Procedures,"). Diagnostic Aids
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (refer to "General Troubleshooting Procedures,").
^ Perform the System Check and refer to the Symptom Table for the appropriate diagnostic tests. System Check Symptom Related Diagnostic Procedures