Home › Land Rover › 2014 › LR4 Base, AWD › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Anti-Lock Brake System Control Module (Abs) -- LR4/L319 › Diagnostic Trouble Code Index DTC: Anti-Lock Brake System Control Module (ABS) › Description And Operation › DTC C0030-38: Left Front Tone Wheel - Signal frequency incorrect › Possible Causes