DTC B2482: Back-Up Light Relay Circuit (Open Or Short To Ground): Notes

WARNING: This page is about a different car, the 1997 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

BCM grounds circuit No. 38 (Dark Blue wire) to energize back-up light relay, which will turn back-up lights on. This allows back-up lights to be used in Underhood Theft Deterrent (UTD) and approach lighting functions.

BCM monitors voltage level on circuit No. 38 (Dark Blue wire). When BCM activates back-up light relay, voltage level in control circuit should be low. When relay is not activated, voltage level in control circuit should be high.

DTC B2482 will set when BCM detects a low voltage level in circuit No. 38 (Dark Blue wire) for 2 seconds when it is not energizing back-up light relay. No driver warning message will be displayed.

DTC B2482 requires an ignition cycle to change from current to history. If conditions for malfunction no longer exist, history DTC will clear after 50 consecutive ignition cycles. DTC B2482 will also clear when conditions no longer exist, or when IPC or scan tool is used to clear codes.

NOTE: If DTC B2482 is a history code, problem may be intermittent. Wiggle wires while performing the following test.