B1887

LFC 15 / DTC B1887 (steps 1 And 2):

LFC 15 / DTC B1887 (Steps 3 - 6):

Normal Operation
The air bag diagnostic monitor checks for driver air bag circuit shorts to ground by monitoring the voltage of (GY/O) wire and (GY/W) wire at pins 3 and 4. If the air bag diagnostic monitor 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 could be caused by:
- A short to ground on (GY/O) wire.
- A short to ground on (GY/W) wire.
- A short to ground on the air bag sliding contact.
- A short to ground on the driver air bag module.
- Air bag diagnostic monitor internal concern.