Test B: Electronic Crash Sensor Module Does Not Respond To NGS Tester
NOTE:
Electronic Crash Sensor (ECS) module may also be referred to as air bag diagnostic module, air bag diagnostic monitor or Restraints Control Module (RCM).
- Turn ignition switch to LOCK position. Deactivate air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article. Disconnect Electronic Crash Sensor (ESC) module connector. Inspect ESC module connector for loose, damaged or corroded terminals. Repair connector as necessary. If ESC module connector is okay, go to next step.
- Measure resistance of Light Blue/White wire between ECS module terminal No. 19 and Data Link Connector (DLC) terminal No. 7. See Figure and Fig 1 . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Light Blue/White wire between DLC and ECS module.
- Disconnect all ECS connectors and inspect for loose, damaged or corroded terminals. Repair connector as necessary. Reconnect all connectors. Operate vehicle to verify problem. If problem is present, replace ECS module. See REMOVAL & INSTALLATION in appropriate INSTRUMENT PANELS article. If problem no longer exists, problem may have been caused by poor contact at connector.