LEXUS LS430 2003 Factory Repair Manual

SPECIFIED CONDITION
Measurement ConditionSpecified Condition
Battery positive (+) --> Terminal 2 Battery negative (-) -->
Terminal 1Moves to LOCK
Battery positive (+) --> Terminal 1 Battery negative (-) -->
Terminal 2Moves to UNLOCK

Fig. 75: Inspecting Front Door Lock Assy RH (Door Lock Motor)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE FRONT DOOR LOCK ASSY RH

OK: Go to Next Step.
2.INSPECT FRONT DOOR LOCK ASSY RH (POSITION SWITCH)
a. Disconnect the F24 ECU connector.
b. Measure the resistance of the position switch.
TERMINALS RESISTANCE REFERENCE
Tester ConnectionDoor Lock ConditionSpecified Condition
7 - 20LOCK10 kohms or higher
7 - 20UNLOCKBelow 1 ohms

Fig. 76: Inspecting Front Door Lock Assy RH (Position Switch)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE FRONT DOOR LOCK ASSY RH
OK: Go to Next Step.
3.INSPECT FRONT DOOR LOCK ASSY RH (DOOR CLOSER MOTOR)
a. Disconnect the F24 ECU connector.
b. Apply battery voltage and check operation of the door closer link.
SPECIFIED CONDITION
Measurement ConditionSpecified Condition
Battery positive (+) --> Terminal 5 Battery negative (-) -->
Terminal 6Moves to FULL
Battery positive (+) --> Terminal 6 Battery negative (-) -->
Terminal 5Moves to INITIAL

Fig. 77: Inspecting Front Door Lock Assy RH (Door Closer Motor)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE FRONT DOOR LOCK ASSY RH
OK: REPLACE PASSENGER DOOR ECU
CIRCUIT DESCRIPTION
The door lock assembly has a built-in door closer motor.
The door ECU actuates the door closer motor to fully close the door.
WIRING DIAGRAM
Fig. 78: Door Closer Motor Circuit On Rear Left Side Door
- Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.INSPECT REAR DOOR LOCK ASSY LH (DOOR LOCK MOTOR)
a. Disconnect the R36 ECU connector.
b. Apply battery voltage to the door lock and check operation of the door lock motor.
SPECIFIED CONDITION

Measurement ConditionSpecified Condition
Battery positive (+) --> Terminal 2 Battery negative (-) --
> Terminal 1Moves to LOCK
Battery positive (+) --> Terminal 1 Battery negative (-) --
> Terminal 2Moves to UNLOCK

Fig. 79: Inspecting Rear Door Lock Assy LH (Door Lock Motor)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE REAR DOOR LOCK ASSY LH

OK: Go to Next Step.
2.INSPECT REAR DOOR LOCK ASSY LH (POSITION SWITCH)
a. Disconnect the R36 ECU connector.
b. Measure the resistance of the position switch.
TERMINALS RESISTANCE REFERENCE
Tester ConnectionDoor Lock ConditionSpecified Condition
7 - 20LOCK10 kohms or higher
7 - 20UNLOCKBelow 1 ohms