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DTC C1203/53 ECM Communication Circuit Malfunction: Description
The circuit is used to send TRAC & VSC control information from the skid control ECU (TRC+, TRC-) to the translate ECU, and engine control information from the translate ECU to the skid control ECU (ENG+, ENG-).
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| C1203/53 |
Both of following conditions are met:
- IG1 voltage is 9.5 V or more, and condition that signals cannot be transmitted to translate ECU occurs continuously for 5 seconds or more
- IG1 voltage is 9.5 V or more, and condition that signals cannot be received from translate ECU occurs continuously for 5 seconds or more
|
- TRC +- communication line
- ENG +- communication line
- Skid control ECU
- Translate ECU
|