FixVault

Home › Jaguar › 2000 › XJR › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Trouble Code Identification › DTC P1637: Controller Area Network Abs/TCCM Token Message Missing › Possible Causes

Possible Causes

CAN open circuit fault (ABS/TCCM to ECM).
CAN short circuit fault.
ABS/TCCM failure.
ECM failure.