2003 LEXUS LS430 battery replacement

PRECAUTION
REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 2 (See step 21 in
REPLACEMENT
)
3.REMOVE INSTRUMENT PANEL GARNISH SUB-ASSY (See step 22 in REPLACEMENT
)
4.REMOVE GLOVE COMPARTMENT PLATE (See step 23 in REPLACEMENT
)
5.REMOVE CHOKE KNOB HOLE COVER (See REPLACEMENT
)
6.REMOVE INSTRUMENT PANEL FINISH PANEL (See step 26 in REPLACEMENT
)
7.REMOVE CRUISE CONTROL ECU ASSY
a. Disconnect the connector.
b. Remove the nut and cruise control ECU (distance control ECU) assy.

3. With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3
seconds. Check that the VSC buzzer sounds at this time.
REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE ENGINE UNDER COVER NO. 1 (See REPLACEMENT
)
3.REMOVE FRONT WHEEL OPENING EXTENSION PAD LH (See REPLACEMENT
)
4.REMOVE FRONT FENDER LINER LH (See REPLACEMENT
)
5.REMOVE FRONT WHEEL OPENING EXTENSION PAD RH (See REPLACEMENT
)
6.REMOVE FRONT FENDER LINER RH (See REPLACEMENT
)
7.REMOVE FRONT BUMPER COVER (See step 5 in REPLACEMENT
)
8.REMOVE FRONT BUMPER REINFORCEMENT SUB-ASSY (See step 9 in REPLACEMENT
)
9.REMOVE LASER SENSOR
a. Disconnect the connector and remove the laser sensor.

REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE MILLIMETER WAVE RADAR SENSOR ASSY
a. Disconnect the connector.
b. Remove the 3 bolts and millimeter wave radar sensor.
<0029004c004a001100030014001c001d000300350048005000520059004c0051004a00030030004c004f004f004c005000480057004800550003003a0044005900480003003500440047004400550003003600480051005600520055000300240056005600
5c[

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.INSTALL MILLIMETER WAVE RADAR SENSOR ASSY
a. Install the millimeter wave radar sensor with the 3 bolts.
Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)
b. Connect the connector.
4.ADJUST MILLIMETER WAVE RADAR SENSOR ASSY (See ADJUSTMENT
)
ADJUSTMENT

Fig. 41: Result Description Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE SWITCH & VOLUME CASE
3.REMOVE STEERING WHEEL COVER LOWER NO. 2
4.REMOVE HORN BUTTON ASSY (See step 5 in REPLACEMENT
)
5.REMOVE STEERING WHEEL ASSY (See step 7 in OVERHAUL
)
6.REMOVE CRUISE CONTROL MAIN SWITCH ASSY
a. Remove the 2 screws and steering wheel damper.
Fig. 42: Removing Steering Wheel Damper

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Disconnect the connectors.
c. Remove screw (A) and disengage the claw.

Fig. 44: Removing Cruise Control Main Switch Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.INSPECT STEERING WHEEL CENTER POINT
8.INSTALL STEERING WHEEL ASSY (See step 96 in OVERHAUL
)
9.INSTALL HORN BUTTON ASSY (See step 6 in REPLACEMENT
)
10.CONNECT BATTERY NEGATIVE TERMINAL
11.INSPECT HORN BUTTON ASSY
12.INSPECT SRS WARNING LIGHT

Fig. 25: Applying Battery Positive Voltage Across Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.REMOVE V-BANK COVER
2.REMOVE VENTILATION VALVE SUB-ASSY
a. Disconnect the ventilation hose from the ventilation valve.
b. Remove the ventilation valve cover.
c. Remove the ventilation valve.
3.INSTALL VENTILATION VALVE SUB-ASSY
a. Install the ventilation valve.
1. Apply adhesive to 2 or 3 threads of the valve.
Adhesive: Part No. 08833-00070, THREE BOND 1324 or equivalent

Fig. 28: Identifying Components Charcoal Canister Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

REPLACEMENT
1.DRAIN ENGINE COOLANT (See ENGINE COOLANT
)
2.WORK FOR PREVENTING GASOLINE FROM SPILLING OUT (See PRECAUTION
)
3.DISCONNECT BATTERY NEGATIVE TERMINAL
4.REMOVE V-BANK COVER
5.REMOVE INTAKE AIR CONNECTOR PIPE
6.REMOVE THROTTLE BODY ASSY (See REPLACEMENT
)
7.REMOVE INTAKE MANIFOLD ASSY
Fig. 20: Disconnecting VSV Connector For EVAP

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the fuel pipe sub-assy No. 2 from the fuel main tube (see PRECAUTION
).
b. Disconnect the VSV connector for EVAP.
c. Disconnect the EVAP hose from the VSV for EVAP.
d. Remove the bolt, disconnect the VSV for EVAP from the upper intake manifold.
e. Remove the bolt and V-bank cover bracket No. 2.
f. Remove the bolt and V-
bank cover bracket No. 3.