System Testing: Notes
NOTE:
Always check module power and ground circuits prior to replacing a control module. See appropriate wiring diagram in DATA LINK CONNECTORS, GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.
SYMPTOM INDEX
| Condition | Go To Test | ||
|---|---|---|---|
| 4-Wheel Anti-Lock Brake System (4WABS) Module Does Not Respond To NGS Tester | A | ||
| Air Bag Diagnostic Monitor Does Not Respond To NGS Tester(1) | B | ||
| Powertrain Control Module (PCM) Does Not Respond To NGS Tester | C | ||
| Auxiliary Powertrain Control Module (APCM) Does Not Respond To NGS Tester | D | ||
| Natural Gas Vehicle Module (NGVM) Does Not Respond To NGS Tester | E | ||
| No Module/Network Communications - ISO 9141 Network | F | ||
| No Module/Network Communications - SCP Network | G | ||
| No Module/Network Communication | H | ||
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