DTC U0073/49 Control Module Communication Bus Off; DTC U0105/41 Lost Communication with Fuel Injector Control Module; DTC U0121/42 Lost Communication with Anti-Lock Brake System (ABS) 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 AND TROUBLE AREA
| DTC No. | DTC Detection Conditions | Trouble Areas |
|---|---|---|
| U0073/49 | Control Module Communication Bus Off | CAN communication system |
| U0105/41 | Lost Communication with Fuel Injector Control Module |
|
| U0121/42 | Lost Communication with Anti-Lock Brake System (ABS) 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 U0105/41 is output, first erase the DTCs. Then turn the ignition switch from OFF to ON. If DTC U0105/41 is not output again, there is no malfunction.