Test C: Restraint Control Module Does Not Respond To Scan Tool
WARNING: This page is about a different car, the 2002 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform all voltage and resistance tests using a Digital Volt-Ohm Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.
- Turn ignition switch to LOCK position. Disable air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article in RESTRAINT. Disconnect Restraint Control Module (RCM) 26-pin harness connector C2041. See Fig 1. RCM is located behind left side of instrument panel, next to central junction box. See Figure. Inspect connector for loose, damaged or corroded terminals. If connector terminals are faulty, repair or replace as necessary. If connector terminals are okay, go to next step.
- Measure resistance between RCM harness connector C2041 terminal No. 5 and DLC terminal No. 7 (Light Blue/White wire). See Fig 1 and Figure . If resistance is 5 ohms or less, replace RCM. See RESTRAINT CONTROL MODULE under REMOVAL & INSTALLATION. If resistance is more than 5 ohms, repair open circuit in Light Blue/White wire between RCM and DLC. For DATA LINK CONNECTOR circuit identification. See WIRING DIAGRAMS .