Lexus RX300 (MCU15). Service manual — part 304
Condition
Disarming
condition
Output by alarm system Output by immobilizer
With Key
Without key
Goes off
Output by checking
visually
Blinks
Goes off
Blinks
Goes off
Disarming preparation
condition
Lights up
Blinks
Lights up
Arming condition
Alarming condition
Goes off
Lights up
Blinks
Blinks
Blinks
Lights up
Sensor operation starts:
Sensor operation stops:
When the condition for arming preparation condition is met.
When the condition is transformed to the disarming condition.
DI–448
–
DIAGNOSTICS
THEFT DETERRENT SYSTEM
LEXUS RX300 (RM785E)
(a)
Indicator light output:
HINT:
The indicator light might blink even under the disarming condi-
tion. (This is caused by output from the immobilizer)
The indicator always blink by output from the immobilizer at any
time under the arming condition.
Blinking frequency:
0.2: ON 1.8 sec.: OFF
(b)
ON/OFF function of radar sensor:
(1)
Radar sensor operation condition:
(2)
Radar sensor ON/OFF switching function:
Every time the button of the wireless door lock sys-
tem is pressed under the arming preparation condi-
tion, sensor is switched ON/OFF.
Destination
Double lock
Compulsion door lock
Europe
RHD
Australia / General countries
LHD
f
X
X
X
X
f
f
f
–
DIAGNOSTICS
THEFT DETERRENT SYSTEM
DI–449
LEXUS RX300 (RM785E)
(c)
Compulsion door lock function.
(1)
This is a control function to lock a door forcibly to
prevent someone from invading in the vehicle when
the inner door lock knob is unlocked under the arm-
ing condition, that is, when the alarming starts.
In Europe, when a door is locked with a key the
alarm sounds, however doors are not locked forci-
bly.
(2)
The setting specifications of the compulsion door
lock function change as follows according to wheth-
er the double lock system is available or not.
DI614–04
I19166
Door Lock Assembly
D Door Unlock Detection Switch
Rear RH Door ECU
Back Door Unlock
Detection Switch
Theft Deterrent ECU
Ignition Switch
Engine Hood Courtesy Switch
Theft Deterrent Indicator
Theft Deterrent Indicator
Ignition Switch
Door Lock Assembly
D Door Unlock Detection Switch
Instrument Panel J/B
D ECU–IG Fuse
Theft Deterrent
Indicator
Passenger Door ECU
Drive Door ECU
Instrument Panel J/B
D EFI–IG Fuse
Except Europe:
RHD:
Europe:
LHD:
Rear LH Door ECU
Theft Deterrent ECU
DI–450
–
DIAGNOSTICS
THEFT DETERRENT SYSTEM
LEXUS RX300 (RM785E)
PARTS LOCATION
DI615–04
I01920
T5
T4
–
DIAGNOSTICS
THEFT DETERRENT SYSTEM
DI–451
LEXUS RX300 (RM785E)
TERMINALS OF ECU
Symbols (Terminals No.)
Wiring Color
Condition
STD Value
DSWH ↔ E
R W ↔ W B
Engine hood courtesy switch position is OFF.
(Engine hood closed)
Below 1 V
DSWH ↔ E
(T4–4 ↔ T4–22)
R–W ↔ W–B
Engine hood courtesy switch position is ON.
(Engine hood opened)
10 – 14 V
UL2 ↔ E
LG R ↔ W B
Back door key lock and unlock switch position is LOCK.
10 – 14 V
UL2 ↔ E
(T4–5 ↔ T4–22)
LG–R ↔ W–B
Back door key lock and unlock switch position is UNLOCK.
Below 1 V
S+B ↔ E
(T4–8 ↔ T4–22)
R–Y ↔ W–B
Constant
10 – 14 V
IG ↔ E
B R ↔ W B
Ignition switch position is LOCK or ACC.
Below 1 V
IG ↔ E
(T4–10 ↔ T4–22)
B–R ↔ W–B
Ignition switch position is ON.
10 – 14 V
+B1 ↔ E
(T4–11 ↔ T4–22)
G–B*1
W–L*2 ↔ W–B
Constant
10 – 14 V
L2 ↔ E
L W ↔ W B
Back door key lock and unlock switch position is UNLOCK.
10 – 14 V
L2 ↔ E
(T4–13 ↔ T4–22)
L–W ↔ W–B
Back door key lock and unlock switch position is LOCK.
Below 1 V
IOUT ↔ E
W ↔ W B
Radar sensor detection invader
Below 1 V
IOUT ↔ E
(T4–18 ↔ T4–22)
W ↔ W–B
Constant
10 – 14 V
KSW ↔ E
L ↔ W B
Key is inserted.
Below 1 V
KSW ↔ E
(T4–19 ↔ T4–22)
L ↔ W–B
Key is not inserted.
10 – 14 V
E ↔ Body ground
(T4–22 ↔ Body ground)
W–B ↔ Body
ground
Constant
Below 1 V
HORN ↔ E
W R ↔ W B
Horn switch position is ON.
Below 1 V
HORN ↔ E
(T5–4 ↔ T4–22)
W–R ↔ W–B
Horn switch position is OFF.
10 – 14 V
CLTS ↔ E
L B ↔ W B
Theft deterrent sylstem change condition.
One time
CLTS ↔ E
(T5–9 ↔ T4–22)
L–B ↔ W–B
Contstant
10 – 14 V
TRIG ↔ E
Y ↔ W B
Theft deterrent system is alarming contidion.
Below 1 V
TRIG ↔ E
(T5–10 ↔ T4–22)
Y ↔ W–B
Constant
10 – 14 V
IND ↔ E
(T5–12 ↔ T4–22)
L ↔ W–B
During set preparation.
3 – 5 V
*1: LHD
*2: RHD
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст