DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUSE (ECU-IG No.1, H-LP CLR)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEADLIGHT CLEANER)
CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - BATTERY AND BODY GROUND)
INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY
CHECK HARNESS AND CONNECTOR (CLEANER MOTOR - CONTROL RELAY AND BATTERY)
REPLACE HEADLIGHT CLEANER CONTROL RELAY
WIPER AND WASHER SYSTEM (w/ Rain Sensor) - Headlight Cleaner Motor and Relay Circuit
DESCRIPTION
This circuit provides power to the headlight cleaner control relay.
The headlight cleaner control relay sends the signal from the switch, etc. to the headlight cleaner motor to operate the headlight cleaner system.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT FUSE (ECU-IG No.1, H-LP CLR) |
Remove the ECU-IG No.1 fuse from the main body ECU.
Remove the H-LP CLR fuse from the engine junction block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| ECU-IG No.1 fuse | Always | Below 1 Ω |
| H-LP CLR fuse |
| | REPLACE FUSE (ECU-IG No. 1, H-LP CLR) |
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| 2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEADLIGHT CLEANER) |
Using the intelligent tester, perform the Active Test ().
Main Body| Tester Display | Test Part | Control Range | Diagnostic Note |
| Head Light Cleaner | Headlight cleaner operation | ON / OFF | - |
- for Headlight Cleaner System with Wiper Washer Function
- The headlight cleaner system only operates when the windshield wiper switch assembly (front washer switch) is turned on the first time. After that, the headlight cleaner system cannot be operated with the windshield wiper switch assembly (front washer switch) until the engine switch is turned off and then turned to on (IG).
- OK:
- Headlight cleaner operates.
| OK | |
| |
| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
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| 3.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - BATTERY AND BODY GROUND) |
Disconnect the headlight cleaner control relay connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
| 3 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
| 3 (IG) - Body ground | Engine switch off | Below 1 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| 4 (E) - Body ground | Engine switch on (IG) | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 4.INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY |
Remove the headlight cleaner motor and pump assembly ().
Apply battery voltage to the headlight cleaner motor and check the operation of the headlight cleaner motor.
- OK:
| Measurement Condition | Specified Condition |
Battery positive (+) → Terminal 1
Battery negative (-) → Terminal 2 | Headlight cleaner motor operation is normal |
| | REPLACE HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY ()
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| 5.CHECK HARNESS AND CONNECTOR (CLEANER MOTOR - CONTROL RELAY AND BATTERY) |
Disconnect the headlight cleaner motor and pump assembly connector.
Disconnect the headlight cleaner control relay connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| 1 - Body ground | Always | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 2 - 6 (PB) | Always | Below 1 Ω |
| 2 - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 6.REPLACE HEADLIGHT CLEANER CONTROL RELAY |
Temporarily replace the headlight cleaner control relay with a new or normally functioning one ().
Check that the headlight cleaner system operates normally.
- OK:
- Headlight cleaner system operates normally.
- for Headlight Cleaner System with Wiper Washer Function
- The headlight cleaner system only operates when the windshield wiper switch assembly (front washer switch) is turned on the first time. After that, the headlight cleaner system cannot be operated with the windshield wiper switch assembly (front washer switch) until the engine switch is turned off and then turned to on (IG).
| | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
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| OK | |
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| END (HEADLIGHT CLEANER CONTROL RELAY IS DEFECTIVE) |
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