2003 LEXUS LS430 lock

Fig. 204: Identifying Passenger Side Junction Block Assy
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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE
PATTERN SELECT SWITCH CIRCUIT (SNOW)
CIRCUIT DESCRIPTION
Passenger side J/B ECU receives pattern select switch information, and sends it through the multiplex
communication system and CAN system to the ECM.
ECT SNOW is the system that operates the throttle motor to control engine output to reduce skidding of the
driving wheels, guarantee takeoff acceleration, driving straightness and turning stability.
WIRING DIAGRAM

Fig. 208: Pattern Select Switch Reference Chart
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NG: REPLACE PATTERN SELECT SWITCH ASSY NO. 1
OK: Go to next step
4.CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSY NO. 1 -
MULTIPLEX NETWORK BODY ECU)
a. Connect the connector of pattern select switch.
b. Disconnect the passenger side junction block assy (multiplex network body ECU) connector.
c. Measure the resistance between terminal SNOW of passenger side junction block assy (multiplex
network body ECU) and body ground.
Standard:
Fig. 209: Pattern Select Switch Reference Chart

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Fig. 210: Identifying Passenger Side Junction Block Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE

Fig. 26: Applying Adhesive
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2. Install the valve.
Torque: 27 N.m (275 kgf.cm, 20 ft.lbf)
HINT:
After applying the specified torque, turn the valve clockwise with the port facing the direction
shown in the illustration.
b. Install the ventilation valve cover.
c. Connect the ventilation hose to the valve.

Centering bolts are used to mount the hood hinge and hood lock. The hood and hood lock cannot be
adjusted with the centering bolts on. Substitute the centering bolts with standard bolts (w/washers) when
making adjustments.
A bolt without a torque specification is shown in the standard bolt chart (see STANDARD BOLT ).
Fig. 2: Identifying Centering Bolts

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1.INSPECT HOOD SUB-ASSY
a. Check that the clearance is within the standard range.

5. Adjust the hood lock.
1. w/ Pre-collision safety system:
Disconnect the cable from the battery negative (-) terminal.
2. w/ Pre-collision safety system:
Disconnect the connector.
3. w/ Pre-collision safety system:
Remove the 3 bolts and millimeter wave radar sensor.
Fig. 6: Removing Bolts And Millimeter Wave Radar Sensor

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4. Remove the cap (see OVERHAUL
).
5. Loosen the 2 bolts and nut.
6. Ad
just the hood lock position so that the striker can enter it smoothly.

Fig. 11: Removing Bolt And Hook
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6.REMOVE HOOD SUPPORT ASSY LH (See REPLACEMENT
)
7.REMOVE HOOD SUPPORT ASSY RH
8.REMOVE HOOD LOCK ASSY
a. w/ Pre-collision safety system:
Separate the battery negative (-) terminal.
b. w/ Pre-collision safety system:
Disconnect the connector.
c. w/ Pre-collision safety system:
Remove the 3 bolts and millimeter wave radar sensor.

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Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using a screwdriver, remove the hood lock nut cap as shown in the illustration.
HINT:
Tape the screwdriver tip before use.