Lexus ES300 (2002 year). Manual — part 91
BODY ELECTRICAL – BODY ELECTRICAL SYSTEM CONTROL
BE-5
SYSTEM OPERATION
1. General
The ECUs that pertain to the body electrical system perform the functions and system controls described in
the following chart.
ECU
Function
Interior Light
Illuminated entry system control
Light auto turn-off system control
E
i
Li h
Light auto turn off system control
(with Delay control)
Exterior Light
Daytime running light system control
Automatic light control system
Warning Control
Key reminder warning
Warning Control
Door ajar warning
Door lock control switch manual operation
Key-linked lock and unlock function
Manual unlock prohibition function
2-step unlock function
Door Lock Control
Key confine prevention function
Shift-linked automatic door lock and unlock
Speed sensitive automatic door lock
Ignition switch-linked automatic door unlock
Body ECU
Collision door lock release
i l
Door lock and unlock operation
Wireless Door
Lock Remote
Answer back operation
Lock Remote
Control System
Panic alarm operation
Control System
Luggage door open operation
Door lock operation
Theft Deterrent
Warning operation
Theft Deterrent
System
Warning operation
(Interior light, Hazard light, Headlight, Taillight, Vehicle
y
(Interior light, Hazard light, Headlight, Taillight, Vehicle
Horn)
R
P
Wi d
Control signal conversion function
Rear Power Window
Control
Control signal conversion function
(Converts control signal from power window master switch
Control
(Converts control signal from power window master switch
and outputs it to rear RH door ECU or rear LH door ECU.)
Moon Roof Control
Key-linked open operation
Moon Roof Control
Transmitter-linked open operation
Customize
Customized body electronics system control
Diagnosis
Self diagnosis
Driver Door
Power Window Control
Power window system control (Driver’s door)
Driver Door
ECU
Customize
Customized body electronics system control
Front
Passenger
Power Window Control
Power window system control (Front passenger’s door)
Passenger
Door ECU
Customize
Customized body electronics system control
(Continued)
BODY ELECTRICAL – BODY ELECTRICAL SYSTEM CONTROL
BE-6
ECU
Function
Rear RH
Door ECU
and
Rear LH
Door ECU
Power Window Control
Power window system control (Rear passenger’s door)
Theft Deterrent
Theft Deterrent System
Warning operation (Security Horn)
Theft Deterrent
ECU
Customize
Customized body electronics system control
2. Customized Body Electronics System
General
The customized body electronics system enables the control function settings of the ECUs to be changed
through the use of a hand-held tester.
However, this system can only change the settings of the ECUs that are connected to the BEAN.
Operation
The specifications of the systems and functions that can be changed by operating a hand-held tester are listed
below.
ECU
System
Content
Initial Setting
Selection
Answer back buzzer volume
50%
50 / 75 / 84 / 89 / 93%
Answer back buzzer volume
50%
50 / 75 / 84 / 89 / 93%
/ Non-operation
Answer back operation
ON
ON / OFF
Wireless-linked power window
open operation
ON
ON / OFF
Wireless
Door
Door ajar warning operation
ON
ON / OFF
Door
Lock Remote
Automatic lock operation
30 sec.
60 / 30 sec.
Lock Remote
Control
System
Trunk lid open operation
0.8 sec. Pressed
Continuously
Pressed Once
/ 0.8 sec. Continuously
/ Pressed Twice
/ Non-operation
All door’s unlock operation
(Button operation twice)
ON
ON / OFF
Panic alarm operation
ON
ON / OFF
Body ECU
Speed sensitive automatic
door lock operation
OFF
ON / OFF
D
L
k
All door’s unlock operation
(Door key operation twice)
ON
ON / OFF
Door Lock
Control
System
Shift-linked automatic
Door unlock operation
OFF
ON / OFF
System
Shift-linked automatic
Door lock operation
ON
ON / OFF
Ignition switch-linked
automatic door unlock
OFF
ON / OFF
Reminder
System
Key reminder warning function
ON
ON / OFF
Light illumination time
15 sec.
7.5 / 15 / 30 sec.
Illuminated
Entry System
Front foot light illumination
operation
ON
ON / OFF
y y
Front foot light dimmer control
ON
ON / OFF
(Continued)
BODY ELECTRICAL – BODY ELECTRICAL SYSTEM CONTROL
BE-7
ECU
System
Content
Initial Setting
Selection
Illuminated
Entry System
Light control of the front
interior light by turning the
ACC off
OFF
ON / OFF
Entry System
Brightness of front foot light
under dimmer control
3%
0 – 100%
Body
ECU
Automatic
Li ht C
t l
Delay time
Standard
Standard
/ Long
ECU
Light Control
System
Sensitive adjustment
0
– 40 / – 20 / 0 / 20 / 40%
System
Light off delay adjustment
30 sec.
0 / 30 / 60 / 90 sec.
Daytime
Running Light
System
Daytime running light system
control
ON
ON / OFF
Driver,
Front
Passenger
Door ECU
Power Window
System
Key-linked open operation
ON
ON / OFF
Theft
Deterrent
ECU
Theft Deterrent
System
Passive mode
OFF
ON / OFF
BODY ELECTRICAL – ACCESSORIES
BE-50
211BE34
Ignition
Switch
Key Unlock
Warning Switch
Engine Hood
Courtesy Switches
Security Horn
Security
Indicator Light
Driver Side
Key-linked
Door Lock Switch
Driver Door
Lock Position
Switch
Front Passenger
Door Lock
Position Switch
Theft
Deterrent
ECU
Driver
Door ECU
Front
Passenger
Door ECU
BEAN
BEAN
BEAN
Body
ECU
Ignition
Switch
Key Unlock
Warning Switch
Door Courtesy
Switches
Door Lock
Assemblies
Vehicle
Horn Relay
Taillight
Relay
Headlight
Relay
Hazard Light
Relay
Door Control
Receiver
THEFT DETERRENT SYSTEM
1. General
This system has been provided on the all models as standard equipment.
The theft deterrent system use the door lock control system and wireless door lock remote control system
parts. The theft deterrent system will operate when somebody attempts to forcibly enter the vehicle, open
the engine hood, or when the battery terminals are removed and reconnected.
The control of this system is effected by the theft deterrent ECU, which maintains communication via the
body ECU and BEAN (Body Electronics Area Network).
The warning specifications of this system are listed below.
Warning Specifications
Interior Light
Illuminates
Hazard Light
Flashing
Warning Method
Headlights and Taillights
Flashing
Warning Method
Vehicle Horn
Sounds a warning at approx. 0.4 second cycles
Security Horn
Sounds a warning at approx. 0.4 second cycles
Door Lock Motor
Locking
Warning Time
60 sec.
System Diagram
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