Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 103 (MODULE COMMUNICATIONS NETWORK - F150 PICKUP)SYSTEM TESTSTEST D: RESTRAINT CONTROL MODULE DOES NOT RESPOND TO NGS TESTER
2004 Ford Econoline E150, Van Cargo, 4.6 W
Test D: Restraint Control Module Does Not Respond To NGS Tester
2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Test D: Restraint Control Module Does Not Respond To NGS Tester
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To avoid accidental deployment and possible personal injury, backup power supply must be depleted before repairing or replacing any air bag restraint system components. Disconnect negative battery cable and auxiliary power supplies, if equipped. Wait one minute for backup power supply energy to deplete.
- Turn ignition switch to LOCK position. Deactivate air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM in AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS. Disconnect Restraint Control Module (RCM) 26-pin harness connector C2041. RCM is located behind right side of instrument panel. Inspect harness connector for loose, damaged or corroded terminals. If harness connector is okay, go to next step. If harness connector is damaged, repair as necessary.
- Measure resistance in Light Blue/White wire between RCM harness connector C2041 terminal No. 5 and Data Link Connector (DLC) terminal No. 7. See Figure and Fig 1 . If resistance is 5 ohms or less, replace RCM. See RESTRAINT CONTROL MODULE in REMOVAL & INSTALLATION. If resistance is more than 5 ohms, repair Light Blue/White wire between RCM harness connector C2041 and DLC. See WIRING DIAGRAMS .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.