Diagnosis Procedure

1.CHECK DATA MONITOR

With M.U.T.-III SE

Ignition switch ON.
caution Be sure wait of 10 seconds after ignition switch ON.
Select “ABS”, “Data List” and “PB SW” according to this order. Check that data monitor displays when parking brake switch is pull, neutral or push. Refer to Reference Value.

Is the inspection result normal?

2.CHECK CONNECTOR

Disconnect 12V battery negative terminal.
Check the parking brake switch harness connector for disconnection or looseness.
Check ABS actuator and electric unit (control unit) terminals for damage or loose connection with harness connector.

Is the inspection result normal?

Repair/replace harness or connector.

3.CHECK PARKING BRAKE SWITCH CIRCUIT

ABS actuator and electric unit (control unit)	Parking brake switch	Continuity
E125	34	M182	9	Existed
31	7
16	6
32	5
15	3

ABS actuator and electric unit (control unit)	—	Continuity
E125	34	Ground	Not existed
31
16
32
15

Is the inspection result normal?

Repair/replace harness or connector.

4.CHECK PARKING BRAKE SWITCH

Check the parking brake switch. Refer to Component Inspection

Is the inspection result normal?

Replace the parking brake switch. Refer to Removal and Installation

5.CHECK TERMINAL

Check parking brake switch terminals for damage or loose connection with harness connector.
Check ABS actuator and electric unit (control unit) terminals for damage or loose connection with harness connector.

Is the inspection result normal?

Repair/replace harness, connector, or terminal.

6.PERFORM SELF-DIAGNOSIS

With M.U.T.-III SE

Is DTC “C10B2-01” detected?

-1"CRNT" is displayed: Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation

-2“Stored DTC” is displayed: INSPECTION END (Erase the memory of self-diagnosis results.)

INSPECTION END

ABS actuator and electric unit (control unit)		—	Continuity
Connector	Terminal	—	Continuity
E125	34	Ground	Not existed
	31
	16
	32
	15