DTC C1380: Stop Light Control Relay Malfunction [10/2019 - 12/2021]: Description
When any of the following conditions are met, the skid control ECU (brake booster with master cylinder 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.
- The parking brake is engaged while the vehicle is being driven.
- *: w/ Pre-collision System
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|---|
| C1380 | Stop Light Control Relay Malfunction | 761 762 |
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