Test R: DTC B2438 - Passengers Seat Belt Buckle Switch Short to Ground

PINPOINT TEST R: DTC B2438 - PASSENGERS SEAT BELT BUCKLE SWITCH SHORT TO GROUND

R1-R2:

R2-R4:

R5-R6:

Normal Operation
The restraints control module (RCM) monitors the passenger safety belt buckle switch circuits for faults. If the RCM detects a short to ground fault, it will store diagnostic trouble code (DTC) B2438 in memory and send a message to the instrument cluster module to illuminate the air bag warning indicator.

Possible Causes
A passenger safety belt buckle switch short to ground fault can be caused by:
- damaged wiring, terminals or connectors.
- a faulty passenger safety belt buckle switch.
- RCM is faulted.