SYSTEM TESTS
Note. Always check module power and ground circuits prior to replacing a control module. See GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.
| Symptom | Perform Test |
| Powertrain Control Module (PCM) Does Not Respond To NGS Tester | A |
| Anti-Lock Brake System (ABS) Module Does Not Respond To NGS Tester | B |
| Air Bag Control Module Does Not Respond To NGS Tester (1) | C |
| Hybrid Electronic Cluster (HEC) Module Does Not Respond To NGS Tester (2) | D |
| Anti-Theft/Double Locking Module Does Not Respond To NGS Tester (3) | E |
| No Module/Network Communication - ISO 9141 Network | F |
| No Module/Network Communication - No Power To NGS Tester | G |
| (1) Air bag control module may also be referred to as electronic crash sensor module. (2) Hybrid Electronic Cluster (HEC) module is built into instrument cluster. (3) Anti-theft/double locking module may also be referred to as Central Security Module (CSM). |
| (1) | Air bag control module may also be referred to as electronic crash sensor module. |
| (2) | Hybrid Electronic Cluster (HEC) module is built into instrument cluster. |
| (3) | Anti-theft/double locking module may also be referred to as Central Security Module (CSM). |