2003 LEXUS LS430 illumination

Body groundBody groundOFFto 5.5 V
RESET (C12-8) -
Body groundY-G - Body
groundTRIP RESET signal
Ignition switch ON, TRIP
RESET switch ON -->
OFFBelow 1 V --> 4.5
to 5.5 V
BELT (C12-9) -
Body groundL - Body
groundSeat belt condition
signal (Passenger side)P-BELT indicator light ON
--> OFFBelow 1 V --> 10
to 14 V
S E (C12-10) -
Body groundW - Body
groundGround (Switch)AlwaysBelow 1 ohms
ES (C12-11) -
Body groundW-B - Body
groundGroundAlwaysBelow 1 ohms
+B (C12-12) -
Body groundL-Y - Body
groundBatteryAlways10 to 14 V
+B (C12-13) -
Body groundR - Body
groundBatteryAlways10 to 14 V
TURN L(C12-14)
- Body groundG-B - Body
groundTurn signal L
Ignition switch ON, turn
signal LH indicator OFF --
> ONBelow 1 V --> 10
to 14 V
TURN R (C12-15)
- Body groundL-B (SB) -
Body groundTurn signal R
Ignition switch ON, turn
signal RH indicator OFF --
> ONBelow 1 V --> 10
to 14 V
ILL- (C12-16) -
Body groundW-L - Body
groundIllumination signalIgnition switch ONPulse generation
H (C12-17) - Body
groundP - Body
groundTurn signal L
Ignition switch ON,
HEIGHT HI indicator ON
--> OFFBelow 1 V --> 10
to 14 V
SI (C12-18) -
Body groundW-G - Body
groundSpeed signal (Input)Ignition switch ON and
turn the wheel slowlyPulse generation
(See waveform 2)
+S (C12-19) -
Body groundV-W - Body
groundSpeed signal (Output)Ignition switch ON and
turn the wheel slowlyPulse generation
E2 (C12-22) -
Body groundW-B - Body
groundGroundAlwaysBelow 1 ohms

PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this article along with their definitions.
PART AND SYSTEM REFERENCE TABLE
malfunctions per driving cycle. "Once per driving
cycle" means that the ECM detects malfunction
only one time during a single driving cycle.
"Continuous" means that the ECM detects
malfunction every time when enabling condition is
met.
DurationThe minimum time that the ECM must sense a
continuous deviation in the monitored value(s)
before setting a DTC. This timing begins after the
"typical enabling conditions" are met.
Malfunction thresholdsBeyond this value, the ECM will conclude that
there is a malfunction and set a DTC.
MIL operationMIL illumination timing after a defect is detected.
"Immediately" means that the ECM illuminates
MIL the instant the ECM determines that there is a
malfunction. "2 driving cycle" means that the ECM
illuminates MIL if the same malfunction is detected
again in the 2nd driving cycle.
Component operating rangeNormal operation range of sensors and solenoids
under normal driving conditions. Use these ranges
as a reference. They cannot be used to judge if a
sensor or solenoid is defective or not.
Part and system nameDefinition
Toyota HCAC system, Hydrocarbon adsorptive
Catalyst (HCAC) system, HC adsorptive three-way
catalystHC adsorptive three-way catalytic converter
Variable Valve Timing sensor, VVT sensorCamshaft position sensor
Variable valve timing system, VVT systemCamshaft timing control system
Camshaft timing oil control valve, Oil control valve
OCV, VVT, VSVCamshaft timing oil control valve
Variable timing and lift, VVTLCamshaft timing and lift control
Crankshaft position sensor "A"Crankshaft position sensor
Engine speed sensorCrankshaft position sensor
THAIntake air temperature
Knock control moduleEngine knock control module
Knock sensorEngine knock sensor
Mass or volume air flow circuitMass air flow sensor circuit
Vacuum sensorManifold air pressure sensor
Internal control module, Control module, Engine Power train control module

Fig. 98: Disconnecting Cables From Inside Handle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Remove the screw.
e. Using a screwdriver, disengage the 2 claws and remove the inside door handle.
HINT:
Tape the screwdriver tip before use.
f. Remove the No. 1 illumination lamp.
g. w/ Seat memory:
Remove the seat memory switch.

Clock (w/ LEXUS Navigation System)
Combination Meter
Cruise Control
Door Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Dynamic Radar/Laser Cruise Control System
Electric Tension Reducer
Electronic Modulated Air Suspension
Electrically Controlled Transmission and A/T Indicator
Engine Control
Front Fog Light
Headlight
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Key Reminder (w/o Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Clearance Sonar)
LEXUS Parking Assist (Rear View Monitor)
Luggage Compartment Door Opener and Closer
Moon Roof
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
PPS
Pre-Collision Safety System
Rear Air Conditioning
Seat Belt Warning
Shift Lock
Smart Key System
SRS
Taillight
Theft Deterrent (w/ Smart Key System)
Tire Pressure Warning System
TRAC
VSC
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
7.5AMPX-IGAdaptive Front-Lighting System
Automatic Air Conditioning (Front)
Automatic Light Control
Door Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Front Fog Light
Headlight
Illumination
Key Reminder (w/ Smart Key System)
Light Auto Turn Off System
Mirror Heater

Multiplex Communication System (BEAN - Door Bus)
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
Multiplex Communication System (BEAN Bus)
Power Seat (Driver's Seat)
Power Shoulder Belt Anchorage
Power Tilt and Power Telescopic
Power Window
Rear Air Conditioning
Remote Control Mirror
Smart Key System
Taillight
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Turn Signal and Hazard Warning Light
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
7.5AOBDABS
Cruise Control
Dynamic Radar/Laser Cruise Control System
Electronic Modulated Air Suspension
Electronically Controlled Transmission and A/T Indicator
Engine Control
Pre-Collision Safety System
Tire Pressure Warning System
TRAC
VSC
7.5APANELClock (w/o LEXUS Navigation System)
Illumination
Multiplex Communication System (BEAN - Steering Column Bus)
7.5ASECURITYDoor Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Garage Door Opener
Horn
Interior Light
Key Reminder (w/ Smart Key System)
Multiplex Communication System (BEAN - Door Bus)
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
Power Window
Smart Key System
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/ Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
10AD RR-IGVibration Seat

Headlight
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Key Reminder (w/o Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Clearance Sonar)
LEXUS Parking Assist (Rear View Monitor)
Luggage Compartment Door Opener and Closer
Moon Roof
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
Multiplex Communication System (BEAN Bus)
PPS
Pre-Collision Safety System
Rear Air Conditioning
Seat Belt Warning
Smart Key System
SRS
Taillight
Theft Deterrent (w/ Smart Key System)
Tire Pressure Warning System
VSC
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
7.5AMPX-B3Adaptive Front-Lighting System
Automatic Light Control
Door Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Front Fog Light
Fuel Lid Opener
Headlight
Illumination
Key Reminder (w/ Smart Key System)
Light Auto Turn Off System
Luggage Compartment Door Opener and Closer
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
Power Tilt and Power Telescopic
Rear Air Conditioning
Remote Control Mirror
Smart Key System
Taillight
Theft Deterrent (w/ Smart Key System)
Turn Signal and Hazard Warning Light
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
7.5AP-ACCAudio System

Front Fog Light
Headlight
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Key Reminder (w/o Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Clearance Sonar)
LEXUS Parking Assist (Rear View Monitor)
Luggage Compartment Door Opener and Closer
Moon Roof
Multiplex Communication System (BEAN - Instrument Panel Bus)
Multiplex Communication System (BEAN - Steering Column Bus)
PPS
Pre-Collision Safety System
Rear Air Conditioning
Seat Belt Warning
Smart Key System
SRS
Taillight
Theft Deterrent (w/ Smart Key System)
Tire Pressure Warning System
TRAC
VSC
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
10AP RR-IGVibration Seat
15AHAZDoor Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Key Reminder (w/ Smart Key System)
Multiplex Communication System (BEAN - Steering Column Bus)
Smart Key System
Theft Deterrent (w/ Smart Key System)
Turn Signal and Hazard Warning Light
Wireless Door Lock Control (w/ Smart Key System)
15AP S/HTRClimate Control Seat (Front)
Seat Heater (Front)
15AP-CIGCigarette Lighter and Power Outlet
20ARR DOOR LHDoor Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Multiplex Communication System (BEAN - Door Bus)
Power Window
Smart Key System
Theft Deterrent (w/ Smart Key System)

LUGGAGE ROOM JUNCTION BLOCK
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/ Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
20ARR DOOR RHDoor Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Multiplex Communication System (BEAN - Door Bus)
Power Window
Smart Key System
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/ Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
25AD DOORDoor Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Mirror Heater
Multiplex Communication System (BEAN - Door Bus)
Power Shoulder Belt Anchorage
Power Window
Remote Control Mirror
Smart Key System
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
25AP DOORDoor Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Illumination
Interior Light
Key Reminder (w/ Smart Key System)
Mirror Heater
Multiplex Communication System (BEAN - Door Bus)
Power Shoulder Belt Anchorage
Power Window
Remote Control Mirror
Smart Key System
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)