Driver side vent LEXUS LS430 2003 Factory Repair Manual

c. Press the driver temperature up switch, and change to STEP operation.
d. Press the driver temperature up switch, and check the air flow mode by hand.
DISPLAY CODE - AIR FLOW POSITION
OK:
Air flow position changes in accordance with each display code.
NG: REPLACE AIR CONDITIONING AMPLIFIER (SEE REPLACEMENT
)
OK: Go to next step
2.INSPECT AIR VENT MODE CONTROL SERVOMOTOR
a. Remove the vent mode control servomotor.
b. Measure resistance according to the value (s) in the table below:
Standard: (Driver side)
AIR VENT MODE CONTROL SERVOMOTOR (DRIVER SIDE) RESISTANCE
Display codeAir flow position
0FACE
1FACE
2FACE
3FACE
4BI-LEVEL
5BI-LEVEL
6FOOT
7FOOT
8FOOT/DEF
9DEF
Tester connectionConditionSpecified condition
A44-1 (AODr1) -A44-4 (AODB)Always24.3 to 26.3 ohms
A44-2 (AODr2) -A44-4 (AODB)Always24.3 to 26.3 ohms
A44-5 (AODr3) -A44-4 (AODB)Always24.3 to 26.3
A44-6 (AODr4) -A44-4 (AODB)Always24.3 to 26.3

Fig. 137: Inspecting Air Vent Mode Control Servomotor (Driver'S Side)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard: (Passenger side)
AIR VENT MODE CONTROL SERVOMOTOR (PASSENGER SIDE) RESISTANCE
Tester connectionConditionSpecified condition
A45-1 (AOPa1) -A45-4 (AOPB)Always24.3 to 26.3 ohms
A45-2 (AOPa2) -A45-4 (AOPB)Always24.3 to 26.3 ohms
A45-5 (AOPa3) -A45-4 (AOPB)Always24.3 to 26.3 ohms
A45-1 (AOPa4) -A45-4 (AOPB)Always24.3 to 26.3 ohms

MOTORS LOCATION
Navigation ECUFig. 4 .
Passenger Side J/B ECUAt right kick panel. See Fig. 17 .
Power Tilt & Power Telescopic ECUBehind left side of dash. See Fig. 17 .
PPS ECURight side of dash. See Fig. 17 .
Rear Door LH ECUInside left rear door. See Fig. 4 .
Rear Door RH ECUInside right rear door. See Fig. 4 .
Rear LH Seat ECUBehind left side of rear seat back. See Fig. 32 .
Rear RH Seat ECUBehind right side of rear seat back. See Fig. 32 .
Seat Belt Control ECULeft side of luggage compartment. See Fig. 4 .
Seat Climate Controller Front LH (Seat Back)In driver's seat back. See Fig. 31 .
Seat Climate Controller Front RH (Seat Back)In passenger's seat back. See Fig. 31 .
Seat Climate Controller Rear LH (Seat Back)In left rear seat back. See Fig. 32 .
Seat Climate Controller Rear LH (Seat Cushion)In left rear seat cushion. See Fig. 32 .
Seat Climate Controller Rear RH (Seat Back)In right rear seat back. See Fig. 32 .
Seat Climate Controller Rear RH (Seat Cushion)In right rear seat cushion. See Fig. 32 .
Shift Lock Control ECUBelow shift lever, in center console. See Fig. 18 .
Skid Control ECU W/ActuatorBehind left side of dash. See Fig. 1 .
Steering Lock ECULeft side of dash. See Fig. 18 .
Stereo Component TunerOn lower right side of luggage compartment. See
Fig. 4
.
Television Camera ECURight rear of luggage compartment. See Fig. 4 .
Theft Deterrent ECUBehind upper right center of dash. See Fig. 18 .
Transponder Key ComputerBehind upper center of dash. See Fig. 18 .
Vibration Seat ECU LHBehind left rear seat back. See Fig. 32 .
Vibration Seat ECU RHIn rear seat assembly. See Fig. 32 .
ComponentLocation
Air Inlet Control Servo MotorRight side of dash. See Fig. 2 .
Air Mix Control Servo Motor (Driver Side)Center of dash. See Fig. 2 .
Air Mix Control Servo Motor (Front Passenger
Side)Right side of dash. See Fig. 2 .
Air Vent Mode Control Servo Motor (Driver Side)Center of dash. See Fig. 2 .
Air Vent Mode Control Servo Motor (Front
Passenger Side)Center of dash. See Fig. 2 .
Blower MotorBehind lower right side of dash. See Fig. 2 .
Cool Air Bypass Servo Motor (Driver's Side)Left side of dash. See Fig. 2 .
Cool Air Bypass Servo Motor (Front Passenger
Side)Right side of dash. See Fig. 2 .
Front Wiper MotorBelow left side of windshield. See Fig. 13 .

Fig. 45: Removing Inside Handle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
h. Using a screwdriver, disengage the 2 clips and remove the courtesy lamp.
i. Remove the 2 screws and seat memory switch.
j. Remove the 3 screws and vent seal.
k. Remove the 2 screws and door pocket.

2.FUEL LID OPENER SYSTEM FUNCTION
The fuel lid opener switch is located on the lower left underside of the instrument panel. Using this
switch, the fuel lid can be opened.
When a fuel lid opener switch ON signal is input to the driver side J/B ECU, the driver side J/B ECU
outputs this signal to the theft warning ECU through the gateway ECU using the BEAN. The theft
warning ECU, which receives different kinds of data using the BEAN, judges if the fuel lid can be opened
or not. When the judgment is made that the fuel lid can be opened, a fuel lid open output request signal is
sent to the luggage room J/B ECU through the gateway ECU. While the theft warning system is
operating, the fuel lid cannot be opened by switch operation in order to prevent theft.
HINT:
Use this procedure to troubleshoot the fuel lid opener system.
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1.VEHICLE BROUGHT TO WORKSHOP
2.CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3.INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX
COMMUNICATION SYSTEM (BEAN)
a. Use the hand-held tester to check for normal function of the multiplex communication system.
1. (ECU not connected, communication line malfunctioning) Without code outputs, proceed to
A.
2. (ECU not connected, communication line malfunctioning) With code outputs, proceed to B.
B: Go to MULTIPLEX COMMUNICATION SECTION (See DIAGNOSTIC TROUBLE CODE
CHART )
A: GO TO NEXT STEP
4.(See PROBLEM SYMPTOMS TABLE
)
a. If the fault is not listed on the problem s
ymptoms table, proceed to A.
fuel lid open output request signal to luggage room J/B.
Gateway ECUTransmits each bus signal of BEAN and passes them between other ECUs
Driver Side J/B ECUTransmits fuel lid opener switch signal to steering column bus of BEAN
Luggage Room J/B ECUReceives fuel lid open output request signal from steering column bus of
BEAN
Fuel Lid Opener SwitchDetects fuel lid opener switch operation and transmits data to driver side
J/B ECU
Fuel Lid Opener MotorRotates according to control of luggage room J/B ECU and opens fuel lid

INSPECTION
1.CHECK EVAPORATOR AND HEATER RADIATOR FINS FOR FOREIGN MATTER
If foreign matter is attached to the fin, blow it off with compressed air.
2.CHECK FITTINGS FOR CRACKS OR SCRATCHES
a. Repair as necessary.
3.INSPECT EVAPORATOR TEMPERATURE SENSOR CIRCUIT (See DTC B1413:
EVAPORATOR TEMPERATURE SENSOR CIRCUIT )
4.INSPECT COOL AIR BYPASS DAMPER POSITION SENSOR CIRCUIT (DRIVER SIDE) (See
DTC B1434: MAX COOL DAMPER POSITION SENSOR CIRCUIT (DRIVER SIDE)
)
5.INSPECT COOL AIR BYPASS DAMPER CONTROL SERVOMOTOR CIRCUIT (DRIVER
SIDE) (See COOL AIR BYPASS DAMPER CONTROL SERVOMOTOR CIRCUIT (DRIVER
SIDE) )
6.INSPECT COOL AIR BYPASS DAMPER POSITION SENSOR CIRCUIT (PASSENGER SIDE)
(See COOL AIR BYPASS DAMPER CONTROL SERVOMOTOR CIRCUIT (PASSENGER
SIDE) )
7.INSPECT COOL AIR BYPASS DAMPER CONTROL SERVOMOTOR CIRCUIT (PASSENGER
SIDE) (SEE COOL AIR BYPASS DAMPER CONTROL SERVOMOTOR CIRCUIT
(PASSENGER SIDE) )
8.INSPECT WATER VALVE CONTROL SERVOMOTOR CIRCUIT (See WATER VALVE
CONTROL SERVOMOTOR CIRCUIT )
9.INSPECT AIR VENT MODE DAMPER CONTROL SERVOMOTOR CIRCUIT (See AIR VENT
MODE DAMPER CONTROL SERVOMOTOR CIRCUIT )
10.INSPECT AIR MIX DAMPER CONTROL SERVOMOTOR CIRCUIT (See AIR MIX DAMPER
CONTROL SERVOMOTOR CIRCUIT )
OVERHAUL
HINT:
Installation is in the reverse order of removal.
See COMPONENTS .
1.DISCONNECT NEGATIVE TERMINAL CABLE FROM BATTERY
2.EVACUATE REFRIGERANT HFC-134A (R134A) (See REPLACEMENT
)
3.DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessar
y to drain out all coolant.