DTC C1380-64: Stop Light Control Relay Malfunction [06/2015 - ]: Description

Upon receiving the hill-start assist control or dynamic radar cruise control operating signal from the skid control ECU (brake booster with master cylinder assembly), the relay contact turns on and the stop lights come on.

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	Note
C1380/64	Stop Light Control Relay Malfunction	761 762	INF Code: 761 When the voltage at terminal IG1 is 9.5 V or more, stop light drive output (STPO) is ON and STP2 is OFF for 2 seconds or more. INF Code: 762 When the voltage at terminal IG1 is 9.5 V or more, stop light drive output (STPO) is OFF and the input signals for STP and STP2 differ for 5 seconds or more.	Stop light switch assembly circuit Stop light switch assembly Skid control ECU (Brake booster with master cylinder assembly)	VSC DTC

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

C1380/64

Stop Light Control Relay Malfunction

761
762

INF Code: 761
- When the voltage at terminal IG1 is 9.5 V or more, stop light drive output (STPO) is ON and STP2 is OFF for 2 seconds or more.

INF Code: 762
- When the voltage at terminal IG1 is 9.5 V or more, stop light drive output (STPO) is OFF and the input signals for STP and STP2 differ for 5 seconds or more.

Stop light switch assembly circuit
Stop light switch assembly
Skid control ECU (Brake booster with master cylinder assembly)

VSC DTC