DTC U2121-00: Communication Error With Vehicle Control Module (VCM)
U2121-00: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error with vehicle control module (VCM) |
| Detection condition |
- The connectivity master unit (CMU) detects a communication interruption or communication error with the vehicle control module (VCM).
|
| Fail-safe |
|
| Possible cause |
- Malfunction in CAN communication line between vehicle control module (VCM) and connectivity master unit (CMU)
- Body control module (BCM) malfunction (vehicle control module (VCM) malfunction) (Refer to BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION
in service information.)
- Connectivity master unit (CMU) malfunction (Refer to CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION
in service information.)
|
| Repeatability verification procedure |
|
| System wiring diagram |
|