DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message [07/2020 - ]: Description
These DTCs are stored when there is a CAN communication malfunction between the certification ECU (smart key ECU assembly), No. 2 skid control ECU (brake actuator assembly), hybrid vehicle control ECU, main body ECU (multiplex network body ECU) or combination meter assembly, and data from the option connector (bus buffer ECU) cannot be received.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0129-87 | Lost Communication with Brake System Control Module Missing Message | CAN communication error between certification ECU (smart key ECU assembly) and No. 2 skid control ECU (brake actuator assembly) (1-trip detection logic*) | No. 2 skid control ECU (brake actuator assembly) | DTC Output Confirmation Operation:
|
| U0140-87 | Lost Communication with Body Control Module Missing Message | CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*) | Main body ECU (multiplex network body ECU) | DTC Output Confirmation Operation:
|
| U0155-87 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | CAN communication malfunction between certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*) | Combination meter assembly | DTC Output Confirmation Operation:
|
| U0293-87 | Lost Communication with Hybrid Powertrain Control Module Missing Message | CAN communication error between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU (1-trip detection logic*) | Hybrid vehicle control ECU | DTC Output Confirmation Operation:
|
| U1117-87 | Lost Communication with Accessory Gateway Missing Message | CAN communication malfunction between the certification ECU (smart key ECU assembly) and the option connector (bus buffer ECU) for approximately 10 seconds or more. | Option connector (bus buffer ECU) | DTC Output Confirmation Operation:
|
- *: Only detected while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC Code | Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|---|
| U0129-87 | There is no effect on vehicle behavior. | - |
| U0140-87 |
|
- |
| U0155-87 | The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display. | - |
| U0293-87 | The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display. | - |
| U1117-87 | The hybrid control system cannot be started using the wireless remote control function. | - |
RELATED DATA LIST AND ACTIVE TEST ITEMS
| DTC No. | Data List and Active Test |
|---|---|
| U0129-87 U0140-87 U0155-87 U0293-87 U1117-87 |
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