Diagnostic Aids
- If the DTC B2552 is a history DTC, the fault may be intermittent. Refer to TESTING WIRING SYSTEMS FOR INTERMITTENT & POOR CONNECTIONS .
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground or open in the backup lamp control circuit.
- The backup lamp relay coil is intermittently shorted to ground or open.
- The BCM is intermittently shorted to ground or open.