DTC C1380-7F: Stop Lamp Relay Actuator Stuck Off [11/2020 - 12/2023]: Description

Refer to DTC C1380-7E.

Refer to DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Priority	Note
C1380-7F	Stop Lamp Relay Actuator Stuck Off	Either of the following is detected: When the IG1 terminal voltage exceeds 10 V and the +BS terminal voltage is from 9.5 to 17.4 V, stop light drive output (STPO) is ON, STP is OFF and STP2 is OFF continuously for 2 seconds or more. When the IG1 terminal voltage exceeds 10 V and the +BS terminal voltage is from 9.5 to 17.4 V, STP2 is OFF and STP is ON continuously for 5 seconds or more.	Wire harness and connector Stop light switch assembly No. 2 skid control ECU (brake actuator assembly) No. 2 semiconductor power integration ECU STP circuit STP2 circuit	Brake/EPB	B	Output ECU: No. 2 skid control ECU (brake actuator assembly)

C1380-7F DTC DETECTION CONDITIONS

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	When the IG1 terminal voltage exceeds 10 V and the +BS terminal voltage is from 9.5 to 17.4 V	◦	◦
Malfunction Status	Stop light drive output (STPO) is ON, STP is OFF and STP2 is OFF continuously	◦	-
Malfunction Status	STP2 is OFF and STP is ON continuously	-	◦
Detection Time		2 seconds or more.	5 seconds or more.
Number of Trips		1 trip	1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.