DTC U0073/49 Control Module Communication Bus Off; DTC U0100/41 Lost Communication with ECM/PCM "A"; DTC U0129/42 Lost Communication with Brake System Control Module: Description
The power steering ECU receives signals from the ECM and the skid control ECU via the CAN communication system.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0073/49 | Control Module Communication Bus Off | CAN communication system |
| U0100/41 | Lost Communication with ECM/PCM "A" |
|
| U0129/42 | Lost Communication with Brake System Control Module |
|
HINT:
- When 2 or more DTCs starting with [U] are output simultaneously, inspect the connectors and wire harness of each ECU.
- If DTC U0100/41 is output, first erase the DTCs. Then turn the ignition switch from off to ON. If DTC U0100/41 is not output again, there is no malfunction.