2000 LEXUS GS400 immobilizer

BE±144
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
2445 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
Indicator light output:
ConditionIndicator light
Disarming conditionOFF
Arming preparation conditionON
Arming conditionOFF
Alarming conditionON
HINT:
Even in disarming condition, the indicator light flash. (Due to the
signal output form immobilizer system). The indicator always
flashes receiving the signal from the immobilizer system at any
time in the arming condition.
Flashing frequency:
0.75 seconds (ON)
1.25 seconds (OFF)
3. PASSIVE ARMING MODE
This mode can be switched according to the specified op-
eration.
All initially set modes (when shipped from factory) are ac-
tive mode. (No passive mode)

Door
Indicator
Alarming output
System condition
Arming condition Alarming
condition Entry delay time Close
Open
ON
OFF
ON
OFF BE±146
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
2447 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
HINT:
In arming condition either closed door is opened, entry delay
occurs. (15 secs.)
During this time, the mode transfers to disarming condition
when the condition described above * is met.
When the condition is not met, the system judges theft occurs,
the mode transfers to alarming condition.
(a) Indicator light output:
ConditionIndicator light
Disarming conditionOFF
Arming preparation conditionON
Arming condition
(Entry delay time)OFF
(ON)
Alarming conditionON
HINT:
Even in disarming condition, the indicator light flash. (Due to the
signal output form immobilizer system). The indicator always
flashes receiving the signal from the immobilizer system at any
time in the arming condition.
Flashing frequency:
0.75 seconds (ON)
1.25 seconds (OFF)

± BODY ELECTRICALTROUBLESHOOTING
BE±15
2316 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
GARAGE DOOR OPENER SYSTEM
SymptomSuspect AreaSee page
The equipment of which code has been registered does not oper-
ate.1. Garage Door Opener Switch
2. Wire Harness
3. *BE±235
±
±
LED does not light up. (Even though either switch is pressed.)1. Garage Door Opener Switch
2. Wire HarnessBE±235
±
LED does not light up. (Only one switch is pressed.)Garage Door Opener SwitchBE±235
* As the GARAGE DOOR OPENER on the vehicle side seems to be normal, check the OPENER on the
equipment side, of which code has been registered.
ENGINE IMMOBILIZER SYSTEM
SymptomSuspect AreaSee page
Engine immobilizer system does not operate.See DIAGNOSIS SYSTEMDI±726
HORN SYSTEM
SymptomSuspect AreaSee page
Horn system does not operate.
1. HORN Fuse
2. Horn Relay
3. Horn Switch
4. Horn
5. Wire HarnessBE±21
BE±250
BE±250
BE±250
±
Horns blow all the time.
1. Horn Relay
2. Horn Switch
3. Wire HarnessBE±250
BE±250
±
One horn operates but the other horn does not operate.1. Horn
2. Wire HarnessBE±250
±
Horns operate abnormally.
1. Horn Relay
2. Horn
3. Wire HarnessBE±250
BE±250
±