DTC C1380 Stop Light Control Relay Malfunction: Description
Upon receiving the downhill assist control or hill-start assist control operating signal from the skid control ECU, the relay contact turns on and the stop light comes on.
DTC DETECTION CONDITION CHART
| DTC Code |
DTC Detection Condition |
Trouble Area |
| C1380 |
Either of the following is detected:
- When the voltage at the IG1 terminal is between 10 and 14 V and the stop light control relay drive output (STPO) is on, a signal has not been input to the STP terminal for 5 seconds or more.
- When the voltage at the IG1 terminal is between 10 and 14 V and the stop light control relay drive output (STPO) is off, the signal at the STP is different from the input signal at the STP2 for 5 seconds or more.
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- Stop light switch circuit
- Stop light control relay (BRK)
- Stop light control relay circuit
- Brake actuator assembly (Skid control ECU)
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