No. 6 Instrument Cluster Back-Up Light Does Not Dim When Taillights Illuminate [Instrument Cluster]: Notes

6	Instrument cluster back-up light does not dim when taillights illuminate
POSSIBLE CAUSE	Instrument cluster malfunction Connector or pin malfunction BCM malfunction Short circuit in wiring harness between CAN-L, CAN-H and ground Open circuit in CAN wiring harness (CAN-L, CAN-H) CAN wiring harness (CAN-L, CAN-H) short each other