Diagnosis Procedure

1. Ignition switch OFF.
2. Disconnect the electric parking brake control module harness connector.
3. Check the voltage between electric parking brake control module harness connector and ground.

   Electric parking brake control module		--	Voltage (Approx.)
   Connector	Terminal
   M167	6	Ground	Battery voltage

4. Ignition switch ON
5. Check the voltage between electric parking brake control module harness connector and ground.

   Electric parking brake control module		--	Voltage (Approx.)
   Connector	Terminal
   M167	6	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 3.

NO

GO TO 2.

1. Iignition switch OFF.
2. Check 5A fuse (#37).
3. Check the continuity between electric parking brake control module harness connector and fuse block (J/B) harness connector.

   Electric parking brake control module		Fuse block (J/B)		Continuity
   Connector	Terminal	Connector	Terminal
   M167	6	M5	6P	Yes

Is the inspection result normal?

YES

Perform trouble diagnosis for ignition power supply.

NO

Repair or replace error-detected parts.

1. Ignition switch OFF.
2. Check the voltage between electric parking brake control module harness connector and ground.

   Electric parking brake control module		--	Voltage (Approx.)
   Connector	Terminal
   M167	8	Ground	Battery voltage
   M168	27
   	32

3. Ignition switch ON
4. Check the voltage between electric parking brake control module harness connector and ground.

   Electric parking brake control module		--	Voltage (Approx.)
   Connector	Terminal
   M167	8	Ground	Battery voltage
   M168	27
   	32

Is the inspection result normal?

YES

GO TO 5.

NO

GO TO 4.

1. Ignition switch OFF.
2. Check the 10A fuse (#6).
3. Check the 30A fuse (#65) and 30A fuse (#72).
4. Check the continuity and short circuit between electric parking brake control module harness connector terminal and 10A fuse (#6).
5. Check the continuity and short circuit between electric parking brake control module harness connector terminal and 30A fuse (#65).
6. Check the continuity and short circuit between electric parking brake control module harness connector terminal and 30A fuse (#72).

Is the inspection result normal?

YES

Perform trouble diagnosis for battery power supply.

NO

Repair or replace error-detected parts.

1. I ignition switch OFF.
2. Check for continuity between electric parking brake control module harness connector and the ground.

   Electric parking brake control module		--	Continuity
   Connector	Terminal
   M168	29	Ground	Yes
   	30

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace error-detected parts.

Check electric parking brake control module pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

Inspection End.

NO

Repair or replace error-detected parts.