Test D: LFC 53/DTC B1891-ABS Tone Warn Ind Ckt Short to Batt

D1:

D2:

D2 - D3:

D3:

D4:

D4 - D5:

Normal Operation
The Restraints Control Module (RCM) monitors its connection to the Generic Electronic Module (GEM) at C310a pin 22, circuit 1083 (LB/BK). This connection is used to signal a chime if the air bag indicator is inoperative and another SRS fault exists. If the RCM detects a short to voltage on the connection to the GEM, it will store Diagnostic Trouble Code (DTC) B1891 in memory.

Possible Causes
An air bag tone warning indicator circuit short to voltage can be caused by:
^ Wiring, terminals, or connectors.
^ A short to voltage on circuit 1083 (LB/BK).
^ GEM is faulted.
^ RCM is faulted.