Home >> Land Rover >> 2021 >> Range Rover Base >> Repair and Diagnosis (Single Page) >> General Information >> Specifications Index >> 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 B10F3-85: Left Front Position Light - Signal above allowable range >> Possible Causes