Test L

PINPOINT TEST L: LFC 15/DTC B1887 - DRIVER AIR BAG CIRCUIT SHORTED TO GROUND

Test L1-L2:

Test L2-L4:

Test L5-L6:

Normal Operation
The restraints control module (RCM) checks for driver air bag circuit shorts to ground by monitoring the voltage of circuits 30S-JA8 (RD/OG) and 31S-JA8 (BK/OG) at pins 3 and 4. If the RCM detects a short to ground on either of these pins, it will store a diagnostic trouble code (DTC) B1887 in memory and flash a lamp fault code (LFC) 15 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A driver air bag circuit short to ground can be caused by:
- a short to ground on circuit 30S-JA8 (RD/OG).
- a short to ground on circuit 31S-JA8 (BK/OG).
- a short to ground on the air bag clockspring.
- a short to ground on the driver air bag module.
- a faulted RCM.