Test M

PINPOINT TEST M: LFC 52/DTC B2438 - PASSENGER SAFETY BELT BUCKLE SWITCH CIRCUIT SHORT TO GROUND

Test M1:

Test M2:

Test M3-M5:

Test M5-M6:

Test M7:

Normal Operation
The restraints control module (RCM) checks 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 flash lamp fault code (LFC) 52 (or higher priority code if one exists) on the air bag indicator.

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