navigation system LEXUS LS430 2003 Factory Workshop Manual

c. Perform the ACTIVE TEST by following the directions on the tester screen.
A/C control assy:
A/C CONTROL ASSY - REFERENCE TABLE
CIRCUIT DESCRIPTION
When the defogger switch is turned on, a rear defogger activation request signal is input to the A/C control (A/C
ECU) from the multi-display
1 or center cluster integration panel2 . Then, the A/C control assembly outputs this
signal to the defogger relay (Marking: DEFOG) and the rear window defogger system is activated.
HINT:
1. w/ LEXUS navigation system
2. w/o LEXUS navigation system
WIRING DIAGRAM
ItemTest DetailsDiagnostic Note
DEFOGGER RLY-ROperate rear window defogger OFF/ON-

Fig. 2: Identifying Engine Room No. 1 Junction & Relay Block Components
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Engine Room No. 1 Junction & Relay Block Fuses
FuseSystem
7.5AA/C IGAutomatic Air Conditioning (Front)
7.5AEFI NO.2Engine Control
7.5AFR IGABS
Automatic Air Conditioning (Front)
Back-Up Light
Charging
Clock (w/ LEXUS Navigation System)
Cruise Control
Door Closer (w/ Smart Key System)
Door Closer (w/o Smart Key System)
Door Lock Control (w/ Smart Key System)
Door Lock Control (w/o Smart Key System)

Dynamic Radar/Laser Cruise Control System
Electronically Controlled Transmission and A/T Indicator
Headlight Cleaner
Key Reminder (w/ Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Clearance Sonar)
LEXUS Parking Assist (Rear View Monitor)
Power Seat (Rear Passenger's Seat)
Pre-Collision Safety System
Radiator Fan
Rear Window Defogger
Remote Control Mirror
Smart Key System
Theft Deterrent (w/ Smart Key System)
VSC and Tire Pressure Warning System
Wiper and Washer
Wireless Door Lock Control (w/ Smart Key System)
7.5AIGNCruise Control
Dynamic Radar/Laser Cruise Control System
Electronically Controlled Transmission and A/T Indicator
Engine Control
7.5ASTAElectronically Controlled Transmission and A/T Indicator
Engine Control
Starting and Ignition
7.5ATAILAutomatic Light Control
Door Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Key Reminder (w/ Smart Key System)
Light Auto Turn Off System
Multiplex Communication System (BEAN - Steering Column Bus)
Smart Key System
Taillight
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Wireless Door Lock Control (w/ Smart Key System)
10AETCSCruise Control
Dynamic Radar/Laser Cruise Control System
Electronically Controlled Transmission and A/T Indicator
Engine Control
10AHORNDoor Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Horn
Key Reminder (w/ Smart Key System)
Multiplex Communication System (BEAN - Steering Column Bus)
Smart Key System
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)

Fig. 3: Identifying Fusible Link Block Components
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Fusible Link Block Fuses
FuseSystem
5AALT-SCharging
30AABS 1Dynamic Radar/Laser Cruise Control System
Tire Pressure Warning System
TRAC
VSC
30ABATTEngine Control
Engine Immobilizer System (w/o Smart Key System)
SRS
Starting and Ignition
30ASTElectronically Controlled Transmission and A/T Indicator
Engine Control
Starting and Ignition
40AAIRBUSElectronic Modulated Air Suspension
40ADEFOGRear Window Defogger
50AABS 2ABS
Dynamic Radar/Laser Cruise Control System
Tire Pressure Warning System
TRAC
VSC
50AFANRadiator Fan
50AHEATERAutomatic Air Conditioning (Front)
60ALUG J/BAudio System
Automatic Light Control
Back-Up Light
Climate Control Seat (Rear)
Clock (w/ LEXUS Navigation System)
Door Closer (w/ Smart Key System)
Door Lock Control (w/ Smart Key System)
Dynamic Radar/Laser Cruise Control System
Interior Light
Key Reminder (w/ Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Clearance Sonar)
LEXUS Parking Assist (Clearance Sonar)
Light Auto Turn Off System
Multiplex Communication System (BEAN - Steering Column Bus)
Pre-Collision Safety System
Rear Air Conditioning
Smart Key System
Stop Light
Taillight

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

FuseSystem
5AP B/ANCMultiplex Communication System (BEAN - Instrument Panel Bus)
Power Shoulder Belt Anchorage
7.5AAM2Electronically Controlled Transmission and A/T Indicator
Engine Control
Engine Immobilizer System (w/ Smart Key System) and Steering Lock
System
Engine Immobilizer System (w/o Smart Key System)
SRS
Starting and Ignition
Steering Lock System
7.5AH-LP LVLAdaptive Front-Lighting System
7.5AMPX-B1Door Lock Control and Door Closer (w/ Smart Key System)
Door Lock Control and Door Closer (w/o Smart Key System)
Engine Immobilizer System (w/ Smart Key System) and Steering Lock
System
Engine Immobilizer System (w/o Smart Key System)
Key Reminder (w/ Smart Key System)
Mirror Heater
Multiplex Communication System (BEAN - Door Bus)
Power Seat (Driver's Seat)
Power Seat (Rear Passenger's Seat)
Power Shoulder Belt Anchorage
Power Window
Remote Control Mirror
Smart Key System, Theft Deterrent, , Door Lock Control, Door Closer
and Wireless Door Lock Control (w/ Smart Key System)
Theft Deterrent (w/ Smart Key System)
Theft Deterrent (w/o Smart Key System)
Vibration Seat
Wireless Door Lock Control (w/ Smart Key System)
Wireless Door Lock Control (w/o Smart Key System)
7.5AMPX-B2ABS
Adaptive Front-Lighting System
Audio System
Automatic Air Conditioning (Front)
Charging
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
Electronic Modulated Air Suspension
Electronically 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)
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

Automatic Air Conditioning (Front)
Clock (w/ LEXUS Navigation System
Clock (w/o LEXUS Navigation System)
LEXUS Navigation System
LEXUS Parking Assist (Rear View Monitor)
Rear Air Conditioning
7.5AP-IGAutomatic Air Conditioning (Front)
Automatic Glare-Resistant EC Mirror
Climate Control Seat (Front)
Clock (w/ LEXUS Navigation System
Clock (w/o LEXUS Navigation System)
Electric Tension Reducer
Key Reminder (w/o Smart Key System)
LEXUS Navigation System
LEXUS Parking Assist (Rear View Monitor)
Moon Roof
Multiplex Communication System (BEAN - Door Bus)
Multiplex Communication System (BEAN - Instrument Panel Bus)
Rear Air Conditioning
Seat Belt Warning
Seat Heater (Front)
Wiper and Washer
7.5ARADIO NO.1Audio System
Clock (w/ LEXUS Navigation System
LEXUS Navigation System
LEXUS Parking Assist (Rear View Monitor)
7.5ASTR LOCKEngine Immobilizer System (w/ Smart Key System)
Steering Lock System
7.5ATELAudio System
Clock (w/ LEXUS Navigation System
LEXUS Navigation System
LEXUS Parking Assist (Rear View Monitor)
10ADOMEABS
Adaptive Front-Lighting System
Audio System
Automatic Air Conditioning (Front)
Charging
Clock (w/ LEXUS Navigation System)
Clock (w/o 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
Electronic Modulated Air Suspension
Electronically 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
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)