Lexus GS300/400 (2000 year). Manual - part 91
I04072
4
3
I04073
5
4
I04074
1
5
4
2
I04076
Wire Harness Side
BE–78
–
BODY ELECTRICAL
WIPER AND WASHER SYSTEM
2379
4.
INSPECT WIPER MOTOR OPERATION
High speed:
Connect the positive (+) lead from the battery to terminal 3 and
the negative (–) lead to terminal 4, check that the motor oper-
ates at high speed.
If operation is not as specified, replace the motor.
5.
INSPECT WIPER MOTOR OPERATION
Stopping at stop position:
(a)
Operate the motor at low speed and stop the motor opera-
tion anywhere except at the stop position by disconnect-
ing positive (+) lead from terminal 5.
(b)
Connect terminals 1 and 5.
(c)
Connect the positive (+) lead from the battery to terminal
2 and negative (–) lead to terminal 4, check that the motor
stops running at the stop position after the motor operates
again.
If operation is not as specified, replace the motor.
6.
INSPECT WIPER MOTOR CIRCUIT
Connector disconnected:
Disconnect the connector from the motor and inspect the con-
nector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
4 – Ground
Constant
Continuity
2 – Ground
Ignition switch LOCK or ACC
No voltage
2 – Ground
Ignition switch ON
Battery positive voltage
If circuit is not as specified, inspect the circuits connected to oth-
er parts.