DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with Hybrid Vehicle Control System [02/2014 - 11/2016]: Description
- The power management control ECU communicates with the ECM and skid control ECU assembly. When the power management control ECU does not receive data from the ECM or skid control ECU assembly, the power management control ECU stores DTC U0100 or U0129.
- The ECM communicates with the power management control ECU. When the ECM does not receive data from the power management control ECU, the ECM stores DTC U0293.
- The skid control ECU assembly communicates with the power management control ECU. When the skid control ECU assembly does not receive data from the power management control ECU, the skid control ECU assembly stores DTC U0293.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | The power management control ECU does not receive data from the ECM. |
|
HINT: As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs. |
| U0129 | Lost Communication with Brake System Control Module | The power management control ECU does not receive data from the skid control ECU assembly. |
|
HINT: As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs. |
| U0293 | Lost Communication with Hybrid Vehicle Control System |
|
|
HINT: As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs. |
HINT:
This diagnosis procedure is for when DTC U0100, U0129 and U0293 are output at the same time.