Turn Signal Light & Hazard Light Unit: Inspection

Measure the voltage between connector terminal and chassis ground.

Preparation tool:

Circuit tester

Fig 1: Measuring Voltage Between Connector Terminal And Chassis Ground

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Inspection conditions	Standard
4 (+) - chassis ground (-)	Always	10 - 14 V
1 (+) - chassis ground (-)	IG OFF → ON	Less than 1 V → 10 - 14 V

Repair or replace the harness if the inspection result is not within the standard value.

Measure the resistance between connector terminal and chassis ground.

Terminal No.	Inspection conditions	Standard
7 - Chassis ground	Always	Less than 1 Ω

Repair or replace the harness if the inspection result is not within the standard value.

Terminal No.	Input/Output	Inspection conditions	Standard
6 (+) - chassis ground (-)	Input	Turn signal switch (right) OFF → ON	9 V or more → less than 1 V
5 (+) - chassis ground (-)	Input	Turn signal switch (left) OFF → ON	9 V or more → less than 1 V
8 (+) - chassis ground (-)	Input	Hazard switch OFF → ON	9 V or more → less than 1 V
2 (+) - chassis ground (-)	Output	Turn signal switch (right) OFF → ON	Repeat less than 1 V → less than 1 V ←→ more than 9 V at 60 to 120 times per minute.
3 (+) - chassis ground (-)	Output	Turn signal switch (left) OFF → ON	Repeat less than 1 V → less than 1 V ←→ more than 9 V at 60 to 120 times per minute.
2 (+) - chassis ground (-)	Output	Hazard switch OFF → ON	Repeat less than 1 V → less than 1 V ←→ more than 9 V at 60 to 120 times per minute.
3 (+) - chassis ground (-)	Output	Hazard switch OFF → ON	Repeat less than 1 V → less than 1 V ←→ more than 9 V at 60 to 120 times per minute.

Replace the turn signal & hazard unit if the inspection result is not within the standard value.