Home >> Land Rover >> 2020 >> Range Rover Autobiography >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Parking Aid Control Module (PAM) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Parking Assist Control Module (PAM) (G2166391) >> DTC U0046-88: Vehicle Communication Bus C - Bus off >> Possible Causes