Diagnostic Aids

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

If the DTC B1482 is a history DTC, the fault may be intermittent. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .
The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground in the courtesy lamps supply voltage circuit.
- An intermittent open in the battery positive voltage circuit of the BCM that is fed by the INADV Power Bus fuse.
- The BCM is intermittently shorted to ground.