Lexus GS300/400 (2000 year). Service manual - part 90
I04067
Wire Harness Side
I04068
2
1
I04069
Wire Harness Side
BE–74
–
BODY ELECTRICAL
HEADLIGHT CLEANER SYSTEM
2375
4.
INSPECT HEADLIGHT CLEANER RELAY CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on wire harness side, as shown.
Tester connection
Condition
Specified condition
2 – Ground
3 – Ground
Constant
Continuity
4 – Ground
Ignition switch ON, light control switch in HEAD
and cleaner switch OFF
No continuity
4 – Ground
Ignition switch ON, light control switch in HEAD
and cleaner switch ON or daytime running light
system operating
Continuity
1 – Ground
Ignition switch OFF or ACC
No voltage
1 – Ground
Ignition switch ON
Battery positive voltage
5 – Ground
Constant
Battery positive voltage
If circuit is not as specified, inspect the circuits connected to oth-
er parts.
5.
INSPECT HEADLIGHT CLEANER MOTOR OPERA-
TION
Connect the positive (+) lead from the battery to terminal 2 and
the negative (–) lead to terminal 1, check that the motor oper-
ates.
NOTICE:
These tests must be performed quickly (within 20 seconds) to
prevent the coil from burning out.
If operation is not as specified, replace the motor.
6.
INSPECT HEADLIGHT CLEANER MOTOR CIRCUIT
Disconnect the connector from the cleaner motor and inspect
the connector on wire harness side, as shown.