Wiper And Washer System (W/ Rain Sensor) Headlight Cleaner Motor And Relay Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Remove the ECU-IG No.1 fuse from the main body ECU.
   

2. Remove the H-LP CLR fuse from the engine junction block.
   

3. 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

1. Using the intelligent tester, perform the Active Test (Click here).
   
   

   Main Body

   Tester Display	Test Part	Control Range	Diagnostic Note
   Head Light Cleaner	Headlight cleaner operation	ON / OFF	-

   HINT:

   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.
   

1. Disconnect the headlight cleaner control relay connector.
   

2. 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

3. 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

1. Remove the headlight cleaner motor and pump assembly (Click here).
   

2. 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

1. Disconnect the headlight cleaner motor and pump assembly connector.
   

2. Disconnect the headlight cleaner control relay connector.
   

3. 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

4. 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

1. Temporarily replace the headlight cleaner control relay with a new or normally functioning one (Click here).
   

2. Check that the headlight cleaner system operates normally.
   

   OK:

   Headlight cleaner system operates normally.
   

   HINT:

   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).