Test O: LFC 52/DTC B2438 - Passenger Safety Belt Buckle Switch Circuit Short to Ground
PINPOINT TEST O: LFC 52/DTC B2438 - PASSENGER SAFETY BELT BUCKLE SWITCH CIRCUIT SHORT TO GROUNDNormal Operation
As part of the supplemental restraint system (SRS), the safety belt buckles are equipped with Hall-effect switches. The safety belt buckle switches indicate to the restraints control module (RCM) whether the safety belts are buckled or unbuckled.
The RCM checks the passenger safety belt buckle switch circuits for faults. If the RCM detects a short to ground fault, it will store DTC B2438 in memory and flash LFC 52 (or higher priority code if one exists) on the air bag warning indicator.
- DTC B2438 Passengers Seat Belt Buckle Switch Short to Ground - If the RCM detects a short to ground on the passenger safety belt buckle circuit, it will set this DTC.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Passenger safety belt buckle switch
- RCM
O1:
O2-O4:
