Normal Operation
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
The connection between the lighting control module (LCM) and the restraints control module (RCM) is used to signal a chime if the primary air bag warning indicator is inoperative and another supplemental restraint system (SRS) fault exists. The RCM monitors its connection to the LCM at C310a pin 23.
If the RCM detects an open or short to ground on the circuit to the LCM, it will store DTC B1892 in memory and flash LFC 5-3 on the air bag warning indicator.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- LCM
- RCM