Lexus GS300/400 (2000 year). Manual — part 86
I04046
Wire Harness Side
BE–58
–
BODY ELECTRICAL
TURN SIGNAL AND HAZARD WARNING SYSTEM
2359
6.
INSPECT TURN SIGNAL FLASHER CIRCUIT
Disconnect the connector from the combination switch and in-
spect the connector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
2 – Ground
Constant
Continuity
3 – Ground
Constant
Continuity
5 – Ground
Turn signal switch RIGHT or OFF
No continuity
5 – Ground
Turn signal switch LEFT
Continuity
6 – Ground
Turn signal switch LEFT or OFF
No continuity
6 – Ground
Turn signal switch RIGHT
Continuity
7 – Ground
Constant
Continuity
8 – Ground
Hazard warning switch OFF
No continuity
8 – Ground
Hazard warning switch ON
Continuity
1 – Ground
Ignition switch LOCK or ACC
No voltage
1 – Ground
Ignition switch ON
Battery positive voltage
4 – Ground
Constant
Battery positive voltage
If circuit is as specified, replace the relay.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.
BE0GY–05
I01354
Front Personal Light
Rear Personal Light
Door Courtesy Light
Licence Plate Light
Luggage Compartment Light
Door Courtesy Lights
Luggage Compartment
Courtesy Switch
Door Courtesy Light
Vanity Light
Vanity Light
Rheostat Light Control
Glove Compartment
Door Courtesy Light
Glove Compartment
Door Courtesy Switch
Passenger Side Junction Block
DOME Fuse
Body ECU No.1
Driver Side Junction Block
Body ECU No.2
Luggage
Compartment
Key Lock and
Unlock Switch
Rear Personal Light
Rear Personal Light
–
BODY ELECTRICAL
INTERIOR LIGHT SYSTEM
BE–59
2360
INTERIOR LIGHT SYSTEM
LOCATION
I04047
DOOR
OFF
ON
DOOR
OFF
ON
w/ Sliding Roof
w/o Sliding Roof
BE0GZ–03
I04048
Wire Harness Side
BE–60
–
BODY ELECTRICAL
INTERIOR LIGHT SYSTEM
2361
INSPECTION
1.
INSPECT FRONT PERSONAL LIGHT SWITCH CONTI-
NUITY
Switch position
Tester connection
Specified condition
Interior light switch
OFF (Lever switch)
–
No continuity
Interior light switch
DOOR (Lever switch)
1 – 3
Continuity
Interior light switch
ON (Lever switch)
1 – 2
Continuity
*Personal light OFF
(Push switch)
–
No continuity
*Personal light ON
(Push switch)
1 – 2
Continuity
*: Set the interior light switch to OFF or DOOR.
If continuity is not as specified, replace the light assembly or
bulb.
2.
INSPECT FRONT PERSONAL LIGHT SWITCH CIR-
CUIT
(See page
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
2 – Ground
Constant
Continuity
1 – Ground
Constant
Battery positive voltage
If circuit is not as specified, inspect power source or wire har-
ness.
I04049
I04048
Wire Harness Side
I04050
2 1
OFF
ON
–
BODY ELECTRICAL
INTERIOR LIGHT SYSTEM
BE–61
2362
3.
INSPECT REAR PERSONAL LIGHT SWITCH CONTI-
NUITY
Switch position
Tester connection
Specified condition
Room light switch
OFF and door closed
–
No continuity
Room light switch
ON and door closed
1 – 2
Continuity
Room light switch OFF or
ON and door opened
1 – 3
Continuity
If continuity is not as specified, replace the light assembly or
bulb.
4.
INSPECT REAR PERSONAL LIGHT SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
2 – Ground
Constant
Continuity
1 – Ground
Constant
Battery positive voltage
If circuit is not as specified, inspect power source or wire har-
ness.
5.
INSPECT VANITY LIGHT CONTINUITY
Switch position
Tester connection
Specified condition
OFF (closed)
–
No continuity
ON (opened)
1 – 2
Continuity
If continuity is not as specified, replace the vanity light assembly
or bulb.
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