System Tests: Notes
CAUTION:
Electronic modules are sensitive to static electrical charges. Proper grounding of technician and workplace is essential to prevent damage.
NOTE:
Do not replace Body Control Module (BCM) unless a DTC remains current after all DTC repairs have been performed. Do not replace BCM if only history DTCs are set.
NOTE:
Always check module ground and power circuits prior to replacing a control module. See GROUND DISTRIBUTION and/or POWER DISTRIBUTION articles in WIRING DIAGRAMS.
SYMPTOM INDEX
| Symptom | Perform System Test |
|---|---|
| Lighting System Faults | A |
| Power Mode Mismatch | B |
| Retained Accessory Power Inoperative | C |
| Retained Accessory Power On After Time-Out | D |
| Scan Tool Does Not Communicate With E & C Data Line | E |
| Scan Tool Does Not Communicate With Class 2 Device | F |
| Scan Tool Does Not Power Up | G |