DTC C1438: Lost Communication with HV ECU [10/2020 - 10/2023]: Description
The skid control ECU assembly receives signals from the hybrid vehicle control ECU via the CAN communication system.
| DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
MIL |
Note |
| C1438 |
Lost Communication with HV ECU |
154
157 |
- INF Code: 154
- When IG2 terminal is 9.5 V or more, the signal that indicates the brake data cannot be received from the hybrid vehicle control ECU is received for 2 seconds or more.
- INF Code: 157
- When IG2 terminal voltage is 9.5 V or more, the signal that indicates the brake date cannot be received from the hybrid vehicle control ECU once or more within 5 seconds occurs 10 times in succession.
|
- CAN communication system
- Skid control ECU assembly
|
Does not come on |
- |