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Home >> Land Rover >> 2021 >> Range Rover Base >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: Body Control Module (BCM) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Body Control Module (BCM) (G2165406) >> DTC B1C90-12: Auxiliary Driving Lamps Relay - Circuit short to battery >> Possible Causes

Possible Causes

NOTE: This DTC refers to a hardwired driving lamps circuit output from the body control module that can be used for aftermarket/accessory fitting. The circuit is not used on the standard vehicle, but required for aftermarket fitments