DTC C1380-7E: Stop Lamp Relay Actuator Stuck On [09/2018 - 10/2020]: Description
When any of the following conditions are met, the skid control ECU (brake actuator assembly) sets the drive output (STPO) ON which operates the stop light control relay (stop light switch assembly) and turns on the stop lights.
Illumination Conditions:
- Pre-collision brake is operating.
- The dynamic radar cruise control system is operating and is applying the brakes.
- Secondary collision brake is operating.
- Brake hold is operating.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| C1380-7E | Stop Lamp Relay Actuator Stuck On | When the IG1 terminal voltage exceeds 10 V and the +BS terminal voltage is 9.5 V or higher, stop light drive output (STPO) is OFF, STP is OFF and STP2 is ON continuously for 5 seconds or more. |
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