B2439

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PINPOINT TEST 12: DTC B2439 - PASSENGER SEAT BELT BUCKLE SWITCH RESISTANCE OUT OF RANGE

Normal Operation
The restraints control module (RCM) checks the passenger safety belt buckle switch circuits for faults. If the RCM detects a current out-of-range fault, it will store diagnostic trouble code (DTC) B2439 in memory and illuminate the air bag indicator.

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

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.