No. 7 Instrument Cluster Illumination Does Not Dim When Taillights Illuminate [Instrument Cluster (With Malfunction Warning Light)]: Notes

7	Instrument cluster illumination does not dim when taillights illuminate
POSSIBLE CAUSE	Instrument cluster malfunction Connector or pin malfunction Fuse 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 Light switch malfunction Malfunction in vehicle wiring harness between light switch and BCM