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DTC U0122 Lost Communication with Vehicle Dynamics Control Module; DTC U0129 Lost Communication with Brake System Control Module: Description
If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open (One side of the CANH [branch wire]/CANL [branch wire] of the ECU and/or sensor is open).
DTC DETECTION CONDITION CHART
| DTC Code |
DTC Detection Condition |
Trouble Area |
| U0122 |
There is no communication from the master cylinder solenoid (skid control ECU). |
- Power source circuit of master cylinder solenoid (skid control ECU)
- One side of CAN branch wire of other systems
- Master cylinder solenoid (skid control ECU)
- Master cylinder solenoid (skid control ECU) branch wire or connector
|
| U0129 |
There is no communication from the master cylinder solenoid (skid control ECU). |
- Power source circuit of master cylinder solenoid (skid control ECU)
- One side of CAN branch wire of other systems
- Master cylinder solenoid (skid control ECU)
- Master cylinder solenoid (skid control ECU) branch wire or connector
|