Normal Operation - RCM
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The RCM continuously monitors the input voltage for correct operation. If the RCM detects input voltage below 9.5 volts, it stores DTC U3003:16 in memory. If the RCM detects input voltage above 16 volts, it stores DTC U3003:17 in memory. If the RCM sets DTC U3003:16 or U3003:17, it sends a message to the IPC to illuminate the airbag warning indicator.
- DTC U3003:16 (Battery Voltage: Circuit Voltage Below Threshold) - If the RCM detects voltage below 9.5 volts with a SRS fault, it sets this DTC.
- DTC U3003:17 (Battery Voltage: Circuit Voltage Above Threshold) - If the RCM detects voltage above 16 volts with a SRS fault or above 20 volts without a SRS fault, it sets this DTC.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- RCM