DTC C1203/53 ECM Communication Circuit Malfunction: Description
The circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system.
DTC DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1203/53 | Engine drive source and destination variation that are sent from the ECM do not match the one of the ECU | ECM |