Test M: LFC 52/DTC B2438 - Passenger Buckle Switch Short To Ground

M1:

M2:

M3 - M5:

M5 - M6:

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 driver safety belt buckle switch open circuit fault can be caused by:
^ Wiring, terminals, or connectors.
^ A faulty passenger safety belt buckle switch.
^ RCM is faulted.