2003 LEXUS LS430 replacement

Fig. 11: Identifying Ignition Coil Components And Replacements
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.REMOVE V-BANK COVER
2.REMOVE ENGINE ROOM SIDE COVER
3.REMOVE INTAKE AIR CONNECTOR PIPE

4.REMOVE OIL LEVEL GAGE SUB-ASSY (See step 8 in REPLACEMENT )
5.REMOVE IGNITION COIL ASSY
a. Disconnect the ignition coil connector.
b. Remove the bolt and pull out the ignition coil.
Fig. 12: Removing Ignition Coil Assy

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
6.INSTALL IGNITION COIL ASSY
a. Connect a new ignition coil to the spark plug, attach the ignition coil to the cylinder head cover,
and install the bolt.
Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf)
b. Connect the ignition coil connector.
7.INSTALL OIL LEVEL GAGE SUB-ASSY (See step 27 in REPLACEMENT
)
8.INSTALL INTAKE AIR CONNECTOR PIPE
9.INSTALL V-BANK COVER
10.INSTALL ENGINE ROOM SIDE COVER

COMPONENTS
Fig. 13: Identifying Camshaft Position Sensor Components And Replacements

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.REMOVE AIR CLEANER INLET NO. 1 (See step 5 in REPLACEMENT
)
2.DRAIN ENGINE COOLANT (See REPLACEMENT
)

3.REMOVE V-BANK COVER
4.REMOVE ENGINE ROOM SIDE COVER
5.DISCONNECT RADIATOR HOSE NO. 1
6.REMOVE TIMING BELT COVER SUB-ASSY NO. 3 LH (See step 18 in REPLACEMENT
)
7.REMOVE CAMSHAFT POSITION SENSOR
a. Remove the bolt, stud bolt and sensor.
Fig. 14: Removing Camshaft Position Sensor

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
8.INSTALL CAMSHAFT POSITION SENSOR
a. Install a new sensor with the bolt and stud bolt.
Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf)
9.INSTALL TIMING BELT COVER SUB-ASSY NO. 3 LH (See step 33 in REPLACEMENT
)
10.CONNECT RADIATOR HOSE NO. 1
11.INSTALL AIR CLEANER INLET NO. 1 (See step 145 in REPLACEMENT
)
12.INSTALL ENGINE ROOM SIDE COVER
13.INSTALL V-BANK COVER

14.REFILL ENGINE COOLANT (See REPLACEMENT )
15.WARM UP ENGINE
16.CHECK FOR ENGINE COOLANT LEAKS
COMPONENTS

Fig. 15: Identifying Crankshaft Position Sensor Components And Replacements
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.REMOVE ENGINE UNDER COVER NO. 1
2.REMOVE CRANKSHAFT POSITION SENSOR

PRECAUTION
1. HANDLING PRECAUTIONS FOR STEERING SYSTEM
a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the
steering system and result in a driving hazard.
2. HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
a. The LS430 is equipped with SRS (Supplemental Restraint System) such as the driver airbag and
front passenger airbag, etc. Failure to carry out service operations in the correct sequence could
cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident.
Before servicing (including removal or installation of parts, inspection or replacement), be sure to
read the precautionary notice for the supplemental restraint system (see PRECAUTION
).
REPLACEMENT
HINT:
COMPONENTS: SEE COMPONENTS
Installation is in the reverse order of removal.
A bolt without a torque specification is shown in the standard bolt chart (see STANDARD BOLT ).
1. TABLE OF BOLT, SCREW AND NUT
HINT:
The bolts, screws and nuts, necessary for installation and removal of the instrument panel, are shown in
the illustration below with alphabet code.

Fig. 5: Bolt, Screw And Nut Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2.SHIP MODE SETTING (W/ CD CHANGER) (SEE REPLACEMENT
)
3.SHIP MODE CONFIRMATION (W/ CD CHANGER) (SEE REPLACEMENT
)
4.DISCONNECT BATTERY NEGATIVE TERMINAL (SEE PRECAUTION
)