DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module [10/2020 - ]: Description
The power steering ECU (rack and pinion power steering gear assembly) receives signals from the ECM, steering sensor, skid control ECU (brake actuator assembly) and forward recognition camera via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition | Note |
|---|---|---|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | Lost communication with ECM |
|
EPS warning light: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates. | The ECU judges the system has returned to normal | - |
| U0126 | Lost Communication With Steering Angle Sensor Module | Lost communication with steering angle sensor |
|
EPS warning light: Comes on | The ECU judges the system has returned to normal | - |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with skid control ECU (Brake actuator assembly) |
|
EPS warning light: Comes on | The ECU judges the system has returned to normal | - |
| U023A | Lost Communication with Front Camera Module | Lost communication with forward recognition camera |
|
EPS warning light: Does not come on | The ECU judges the system has returned to normal | w/ Forward Recognition Camera |