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DTC C1380/64 Stop Light Control Relay Malfunction: Description

Upon receiving the dynamic radar cruise control operating signal from the skid control ECU, the relay contact turns on and the stop light comes on.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC Code DTC Detection Condition Trouble Area
C1380/64 ((1)) When either of the following is detected:
  • When the voltage at the IG1 terminal is between 10 to 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 to 14 V and the stop light control relay drive output (STPO) is OFF, the signal at the STP1 is different from the input signal at the STP2 for 5 seconds or more.
  • STOP fuse
  • Stop light switch
  • Stop light switch circuit
  • Stop light control relay
  • Stop light control relay circuit
  • Brake actuator assembly (Skid control ECU)
(1) with dynamic radar cruise control