2003 LEXUS LS430 Identifying ac

Fig. 83: Identifying Power Window System
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COMPONENTS

Before adjusting the door position for vehicles equipped with side airbags and curtain shield airbags, be
sure to disconnect the battery. After adjustment, inspect the SRS warning lamp, the side airbag system
and the curtain shield airbag system for normal operation (see DIAGNOSIS SYSTEM
). Then initialize
both systems (see INITIALIZATION
).
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The procedures listed below are for the LH side.
Centering bolts are used to mount the door hinge to the vehicle body and door. The door 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. 85: Identifying Centering Bolts

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1.INSPECT REAR DOOR PANEL SUB-ASSY LH
a. Check that the clearance is within the standard ran
ge.

40.INITIALIZE POWER WINDOW SYSTEM (See INITIALIZATION )
Fig. 138: Identifying Power Window System

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COMPONENTS

Fig. 139: Identifying Luggage Compartment Door Components
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ADJUSTMENT
HINT:

Centering bolts are used to mount the door hinge to the vehicle body and door. The door 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. 140: Identifying Centering Bolts

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1.INSPECT LUGGAGE COMPARTMENT DOOR PANEL SUB-ASSY
Fig. 141: Inspecting Luggage Compartment Door Panel Sub
-Assy

Fig. 1: Identifying Components & Replacements Location of Engine Immobilizer System (W/Smart Key
System)
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Fig. 2: Identifying Engine Immobilizer System Diagram
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1.ENGINE IMMOBILIZER SYSTEM DESCRIPTION
The engine immobilizer system is designed to prevent the vehicle from being stolen. This system uses a
steering lock ECU that stores the key codes of authorized smart keys. If an attempt is made to start the
engine using an unauthorized key, the ECU sends a signal to the ECM to prohibit fuel delivery and
ignition, effectively disabling the engine.
2.FUNCTION OF MAIN COMPONENT
MAIN COMPONENT FUNCTION TABLE
ComponentOutline
Transponder key coil/amplifierWhen key is inserted in ignition key cylinder, key
coil receives key's ID code. Then amplifier
amplifies ID code and outputs it to steering lock
ECU.
Unlock warning switchDetects if key is in ignition key cylinder and outputs
results to steering lock ECU
ECMThrough SFI communication, ECM receives ID
verification results from steering lock ECU. ECM
also verifies ECUs. Then judgement of whether or
not to immobilize engine is made.
Security indicatorDepending on operation of theft warning ECU (theft
deterrent ECU), interior security indicator lamp

Fig. 3: Identifying Customer Problem Analysis Check Sheet
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HINT:
The key has 3 codes: the key code (immobilizer code), the smart code and wireless code. All of these code types
need to be registered. Refer to REGISTRATION
for the smart code (wireless code) registration procedures.
1.DESCRIPTION OF CODE REGISTRATION