Home >> Land Rover >> 2023 >> Range Rover Velar HST >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Instrument Panel Cluster Control Module - High Line -- Range Rover Velar/L560 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Instrument Panel Cluster (IPC) Control Module - High-Line (G2688339) >> B100D-64: Column Lock Authorization - Signal plausibility failure >> Possible Causes