Test E

PINPOINT TEST E: LFC 46/DTC B1877/B1885 - DRIVER PRETENSIONER CIRCUIT RESISTANCE HIGH OR LOW

Test E1-E2:

Test E3-E4:

Test E4-E5:

Normal Operation
The Restraints Control Module (RCM) monitors the resistance of the circuits to the driver safety belt pretensioner. When the RCM detects a resistance that is out of the expected range (high or low) it will set Lamp Fault Code (LFC) 46 and Diagnostic Test Code (DTC) B1885 or B1877.

Possible Causes
An out of range resistance on the driver safety belt pretensioner circuit can be caused by:
^ out of range resistance on circuit 1079 (LG/RD).
^ out of range resistance on circuit 1080 (LG/BK).
^ out of range resistance on the driver belt pretensioner.
^ an RCM internal concern.