2003 LEXUS LS430 lock

OK: Go to Next Step.
2.INSPECT REAR DOOR LOCK ASSY RH (POSITION SWITCH)
a. Disconnect the R37 ECU connector.
b. Measure the resistance of the position switch.
TERMINALS RESISTANCE REFERENCE
Tester ConnectionDoor Lock ConditionSpecified Condition
R37-7 (LSW) - R37-20 (CPSE)LOCK10 kohms or higher
R37-7 (LSW) - R37-20 (CPSE)UNLOCKBelow 1 ohms

Fig. 84: Inspecting Front Door Lock Assy RH (Position Switch)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE REAR DOOR LOCK ASSY RH

OK: Go to Next Step.
3.INSPECT REAR DOOR LOCK ASSY RH (DOOR CLOSER MOTOR)
a. Disconnect the R37 ECU connector.
b. Apply battery voltage and check operation of the door closer link.
SPECIFIED CONDITION
Measurement connectionSpecified Condition
Battery positive (+) --> Terminal 5 Battery negative (-) -->
Terminal 6Moves to FULL
Battery positive (+) --> Terminal 6 Battery negative (-) -->
Terminal 5Moves to INITIAL

Fig. 85: Inspecting Rear Door Lock Assy RH (Door Closer Motor)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE REAR DOOR LOCK ASSY RH
OK: REPLACE REAR DOOR ECU RH
1.INSPECT BASIC OPERATION
a. When a door (driver, passenger, rear left or rear right door) is partially closed (ajar), check that the
motor operates so that the door is fully closed (locked).
b. After the above step, check that the door can be opened.
1.INSPECT DOOR CLOSER MOTOR ASSY (DRIVER SIDE)
a. Apply battery voltage and check operation of the door lock link.
SPECIFIED CONDITION
If the result is not as specified, replace the motor ass
y.
Measurement ConditionSpecified Condition
Battery positive (+) --> Terminal 5 Battery negative (-) -->
Terminal 6Moves to FULL
Battery positive (+) --> Terminal 6 Battery negative (-) -->
Terminal 5Moves to INITIAL

Fig. 94: Inspecting Combination Switch Assy (Rear Left Side)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.INSPECT DOOR CLOSER MOTOR ASSY (REAR RIGHT SIDE)
a. Appl
y battery voltage and check operation of the door lock link.

Fig. 63: Separating Parking Brake Cable Assy No. 3
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.REMOVE REAR AXLE SHAFT NUT
a. Remove the cotter pin and lock cap.
b. While depressing the brake pedal, remove the nut.

Fig. 79: Identifying Speed Sensor Rear LH Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
27.INSTALL REAR AXLE SHAFT NUT
a. While applying brakes, use a socket wrench (32 mm) to install the nut.
Torque: 290 N.m, (2,960 kgf.cm, 214 ft.lbf)
b. Install the lock cap and a new cotter pin.
If the holes for the cotter pin are not ali
gned, tighten the nut a further 10°.