C1380 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1380 – Stop Light Control Relay Malfunction
C1380 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1380 Possible Causes
Faulty Stop light,Stop light harness is open or shorted,Stop light circuit poor electrical connection,Faulty Stop light Control (BRK) Relay,Faulty Skid Control ECU or Brake Actuator
The Skid Control ECU inputs the stop light switch signal and detects the status of the brake operation. The Skid Control ECU monitors the Stop light. The Skid Control ECU sets the OBDII code when the Stop light is not to factory specifications.