Low Speed Position
With the wiper switch turned to LO position, the current flows from terminal No. 17 of the front wiper and washer switch to terminal No. 7 to terminal No. 5 of the front wiper motor to terminal No. 4 to GROUND and causes the front wiper motor to run at low speed.
High Speed Position
With the wiper switch turned to HI position, the current flows from terminal No. 17 of the front wiper and washer switch to terminal No. 8 to terminal No. 3 of the front wiper motor to terminal No. 4 to GROUND and causes the front wiper motor to run at high speed.
INT Position
With wiper switch turned to INT position, the relay operates and the current which is connected by the relay function flows from terminal No. 17 of the front wiper and washer switch to terminal No. 2 to GROUND. This flow of current operates the intermittent circuit and the current flows from terminal No. 17 of the front wiper and washer switch to terminal No. 7 to terminal No. 5 of the front wiper motor to terminal No. 4 to GROUND and operates the wiper.
The intermittent operation is controlled by the charge/discharge function of the condenser installed in the relay and the intermittent time is controlled by a time control switch to change the charging time of the condenser.
MIST Position
With wiper switch turned to MIST position, the current flows from terminal No. 17 of the front wiper and washer switch to terminal No. 7 to terminal No. 5 of the wiper motor to terminal No. 4 to GROUND and causes the wiper motor to run at low speed.
HEADLIGHT CLEANER SWITCH
To spray fluid on the headlights, push the headlight cleaner switch with the headlights on. The ignition key must be in the ON position. For headlight cleaner switch location, see COMPONENT LOCATIONS .
WASHER NOZZLE
- Inspect the washer nozzle. While operating the washer, check whether the upper point where the washer fluid hits the windshield and the surge area are within the range indicated by the hatched line. (Scheme 11) A - Approximately 12.32 in. (313 mm). B - Approximately 17.09 in. (434 mm). C - Approximately 11.42 in. (290 mm). D - Approximately 7.13 in. (181 mm). E - Approximately 10.63 in. (270 mm). F - Approximately 6.02 in. (153 mm). G - Approximately 11.81 in. (300 mm). H - Approximately 18.19 in. (462 mm). I - Approximately 10.55 in. (268 mm). J - Approximately 11.30 in. (287 mm). Check if the lower point where the washer fluid hits the windshield is within the range of the wiping pattern (the area of the glass which is wiped by the wiper blades).
- Adjust the washer nozzle. Using a tool like the one shown in the illustration, change the direction of the nozzle hole to adjust the point where washer fluid hits the windshield. (Scheme 12)
Scheme 11
Scheme 12
WINDSHIELD WIPER POSITION
| CAUTION | To prevent the wiper blades from being deformed, be sure to hold the connection of the wiper arm and wiper blade securely. |
Note. The wiper blades retract under the hood when the wipers are turned off. In the following cases, the wipers should be shifted from the retracted position to the rest position above the hood level. When cleaning the windshield. When inspecting or replacing the wipers. When the retraction may be obstructed by snow, etc., at the bottom of the windshield. Other than the above cases, keep the wipers in the retracted position.
- To shift the windshield wipers from the retracted to rest position, hold the connection of the wiper arm and wiper blade and pull it upward along the windshield glass with the force of about 22 lbs. (98 N).
- To return the windshield wipers to the retracted position, push the connection of the wiper arm and wiper blade downward.
HEADLIGHT CLEANER MOTOR CIRCUIT
Inspect the headlight cleaner motor circuit. Disconnect the connector from the cleaner motor and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING HEADLIGHT CLEANER MOTOR CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts. See WIRING DIAGRAMS .
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground | Constant | Continuity |
INSPECTING HEADLIGHT CLEANER MOTOR CIRCUIT
HEADLIGHT CLEANER RELAY CIRCUIT
Inspect the headlight cleaner relay circuit. Disconnect the connector from the relay and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING HEADLIGHT CLEANER RELAY CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts. See WIRING DIAGRAMS .
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground, 3 - Ground | Constant | Continuity |
| 4 - Ground | Ignition Switch ON, Light Control Switch In HEAD & Cleaner Switch OFF | No Continuity |
| 4 - Ground | Ignition Switch ON, Light Control Switch In HEAD & Cleaner Switch ON Or Daytime Running Light System Operating | Continuity |
| 1 - Ground | Ignition Switch OFF Or ACC | No Voltage |
| 1 - Ground | Ignition Switch ON | B+ Voltage |
| 5 - Ground | Constant | B+ Voltage |
INSPECTING HEADLIGHT CLEANER RELAY CIRCUIT
HEADLIGHT CLEANER SWITCH CIRCUIT
Disconnect the switch connector and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING HEADLIGHT CLEANER SWITCH CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts. See WIRING DIAGRAMS .
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 1 - Ground | Headlight ON | Continuity |
| 1 - Ground | Headlight OFF | No Continuity |
INSPECTING HEADLIGHT CLEANER SWITCH CIRCUIT
WASHER MOTOR CIRCUIT
Inspect the connector from the motor and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING WASHER MOTOR CIRCUIT table. If the circuit is not as specified, inspect the power source, wire harness and wiper switch. For power source and wire harness, see WIRING DIAGRAMS . For wiper switch, see WIPER & WASHER SWITCH under COMPONENT TESTS.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground | Ignition Switch ON | B+ Voltage |
INSPECTING WASHER MOTOR CIRCUIT
WIPER & WASHER SWITCH CIRCUIT
Inspect the wiper and washer switch circuit. Disconnect the connector from the motor and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING WIPER & WASHER SWITCH CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts. See WIRING DIAGRAMS .
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground | Constant | Continuity |
| 17 - Ground | Ignition Switch LOCK Or ACC | No Voltage |
| 17 - Ground | Ignition Switch ON | B+ Voltage |
INSPECTING WIPER & WASHER SWITCH CIRCUIT
WIPER MOTOR CIRCUIT
Inspect the wiper motor circuit. Disconnect the connector from the motor and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING WIPER MOTOR CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts. See WIRING DIAGRAMS .
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 4 - Ground | Constant | Continuity |
| 2 - Ground | Ignition Switch LOCK Or ACC | No Voltage |
| 2 - Ground | Ignition Switch ON | B+ Voltage |
INSPECTING WIPER MOTOR CIRCUIT
HEADLIGHT CLEANER MOTOR
| CAUTION | This test must be performed quickly (within 20 seconds) to prevent the coil from burning out. |
Inspect the headlight cleaner motor operation. Connect the positive (+) lead from the battery to terminal No. 2 and the negative (-) lead to terminal No. 1, check that the motor operates. See CONNECTOR IDENTIFICATION . If the operation is not as specified, replace the motor.
HEADLIGHT CLEANER RELAY
- Inspect the headlight cleaner relay operation.
- Check that no continuity exists between terminals No. 2 and No. 5. See «CONNECTOR IDENTIFICATION»(ref-153118-S37884326122003031800000) .
- Connect the positive (+) lead from the battery to terminals No. 1 and No. 5, and the negative (-) lead to terminal No. 3.
- Connect the negative (-) lead from the battery to terminal No. 4, and check that continuity exists between terminals No. 2 and No. 5 for 0.9-1.1 seconds, then no continuity exists.
- If the operation is not as specified, replace the motor.
Inspect the headlight cleaner switch continuity. See CONNECTOR IDENTIFICATION . See INSPECTING HEADLIGHT CLEANER SWITCH CONTINUITY table. If continuity is not as specified, replace the switch. See HEADLIGHT CLEANER SWITCH under REMOVAL & INSTALLATION.
| Switch Position | Tester Connection | Specified Condition |
|---|---|---|
| OFF | — | No Continuity |
| ON | 2 - 4 | Continuity |
| Illumination Circuit | 5 - 6 | Continuity |
INSPECTING HEADLIGHT CLEANER SWITCH CONTINUITY
WASHER LEVEL WARNING SWITCH
For washer level warning switch component test, see WINDOW WASHER LEVEL WARNING SWITCH under COMPONENT TESTS in INSTRUMENT PANEL article in ACCESSORIES & EQUIPMENT.
WASHER MOTOR
| CAUTION | This test must be performed quickly (within 20 seconds) to prevent the coil from burning out. |
Inspect the washer motor operation. Connect the positive (+) lead from the battery to terminal No. 2 and the negative (-) lead to terminal No. 1, check that the motor operates. See CONNECTOR IDENTIFICATION . If operation is not as specified, replace the motor.
WIPER & WASHER SWITCH
Inspect the wiper and washer switch continuity. See CONNECTOR IDENTIFICATION . See INSPECTING WIPER & WASHER SWITCH CONTINUITY table. If continuity is not as specified, replace the switch. See WIPER & WASHER SWITCH under REMOVAL & INSTALLATION.
| Switch Position | Tester Connection | Specified Condition |
|---|---|---|
| OFF | 7 - 16 | Continuity |
| INT | 7 - 16 | Continuity |
| LO | 7 - 17 | Continuity |
| HI | 8 - 17 | Continuity |
| Washer OFF | — | No Continuity |
| Washer ON | 2 - 11 | Continuity |
INSPECTING WIPER & WASHER SWITCH CONTINUITY
WIPER MOTOR
- Low Speed - Inspect the wiper motor operation. Connect the positive (+) lead from the battery to terminal No. 5 and the negative (-) lead to terminal No. 4, check that the motor operation at low speed. See «CONNECTOR IDENTIFICATION»(ref-153118-S37884326122003031800000) . If operation is not as specified, replace the motor. See «WIPER MOTOR»(ref-153118-S27834210802003031800000) under REMOVAL & INSTALLATION.
- High Speed - Inspect the wiper motor operation. Connect the positive lead from the battery to terminal No. 3 and the negative (-) lead to terminal No. 4, check that the motor operates at high speed. See «CONNECTOR IDENTIFICATION»(ref-153118-S37884326122003031800000) . If the operation is not as specified, replace the motor. See «WIPER MOTOR»(ref-153118-S27834210802003031800000) under REMOVAL & INSTALLATION.
- Stopping At Stop Position - Inspect the wiper motor operation. Operate the motor at a low speed and stop the motor operation anywhere except at the stop position by disconnecting the positive (+) lead from terminal No. 5. See «CONNECTOR IDENTIFICATION»(ref-153118-S37884326122003031800000) . Connect terminals No. 1 and No. 5. Connect the positive (+) lead from the battery to terminal No. 2 and negative (-) lead to terminal No. 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. See «WIPER MOTOR»(ref-153118-S27834210802003031800000) under REMOVAL & INSTALLATION.
For headlight cleaner switch removal and installation, see INSTRUMENT PANEL under REMOVAL & INSTALLATION in INSTRUMENT PANEL article in ACCESSORIES & EQUIPMENT.
For wiper and washer switch removal and installation, see COMBINATION SWITCH under REMOVAL & INSTALLATION in STEERING COLUMN SWITCHES article in ACCESSORIES & EQUIPMENT.