RM35X0E _59 Vehicle Exterior _079320 WIPER / WASHER _0385301 WIPER AND WASHER SYSTEM J

WIPER / WASHER  WIPER AND WASHER SYSTEM  Headlight Cleaner Motor and Relay Circuit  


DESCRIPTION

The headlight ECU sub-assembly RH controls the headlight cleaner motor and pump assembly.

WIRING DIAGRAM

E469800E01
3.01,0.365 3.198,0.531 0.188,0.167 10 false L 4.167,0.365 4.323,0.563 0.156,0.198 10 false B 2.917,3.063 4.885,3.427 1.969,0.365 10 false Headlight Cleaner Control Relay (H-LP CLN) 2.344,2.188 3.042,2.375 0.698,0.188 10 false H-LP CLN 0.583,1.979 1.688,2.219 1.104,0.24 10 false from Battery 2.813,1.083 4.563,1.469 1.75,0.385 10 false Headlight Cleaner Motor and Pump Assembly 3.25,1.896 3.552,2.094 0.302,0.198 10 false 3 3.25,2.51 3.552,2.708 0.302,0.198 10 false 1 4.417,2.51 4.719,2.708 0.302,0.198 10 false 2 5.167,2.51 5.469,2.708 0.302,0.198 10 false 7 5.417,2.583 5.854,2.781 0.438,0.198 10 false HLC 5.188,3.76 5.49,3.958 0.302,0.198 10 false 4 5.417,3.854 5.854,4.052 0.438,0.198 10 false IG 1.021,3.302 2.417,3.531 1.396,0.229 10 false from IG1 NO.1 Relay 0.865,4.063 1.99,4.281 1.125,0.219 10 false ECU-IG1 NO.3 6.042,4.854 6.479,5.052 0.438,0.198 10 false GND 5.302,5.708 6.552,6.104 1.25,0.396 10 false Headlight ECU Sub-assembly RH 2.104,5.323 3.448,5.542 1.344,0.219 10 false Steering Sensor*1 2.115,5.667 4.552,5.885 2.438,0.219 10 false Combination Switch ECU Assembly*2 0.76,6.448 3.198,6.667 2.438,0.219 10 false : CAN Communication Line 0.167,5.75 1.927,5.958 1.76,0.208 10 false *1: w/ VSC OFF Switch 0.188,6.083 2.01,6.292 1.823,0.208 10 false *2: w/o VSC OFF Switch 2.792,0.365 2.979,0.531 0.188,0.167 10 false 1 4.417,0.365 4.604,0.531 0.188,0.167 10 false 2 2.823,0.917 3.177,1.083 0.354,0.167 10 false A53 4.417,1.896 4.719,2.094 0.302,0.198 10 false 5 6.479,4.74 6.781,4.938 0.302,0.198 10 false 12 5.313,5.531 5.667,5.698 0.354,0.167 10 false A55

CAUTION / NOTICE / HINT

NOTICE:
·

First check that the front washer operates normally.

Click hereVehicle Exterior>WIPER / WASHER>WIPER AND WASHER SYSTEM>OPERATION CHECK

·

Check that the lighting system is normal before performing the following procedure.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Inspect the fuses and relays for circuits related to this system before performing the following inspection procedure.



PROCEDURE

1.PERFORM ACTIVE TEST USING GTS (HEADLIGHT CLEANER)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Headlight Cleaner Function to operate the headlight cleaner motor and pump assembly OFF or ON -
Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display
Headlight Cleaner
50004 414 1
OK:

Headlight cleaner motor and pump assembly operate normally.



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS (FRONT WINDOW WASHER SWITCH)

NG

3.INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY
2.READ VALUE USING GTS (FRONT WINDOW WASHER SWITCH)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter following menus: Body Electrical / HL AutoLeveling (Sub) / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > HL AutoLeveling (Sub) > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Front Window Washer Switch Windshield wiper switch assembly (washer switch) condition OFF or ON OFF: Windshield wiper switch assembly (washer switch) off
ON: Windshield wiper switch assembly (washer switch) on 		-
Body Electrical > HL AutoLeveling (Sub) > Data List
Tester Display
Front Window Washer Switch
50003 414 1
OK:

On the GTS screen, ON or OFF is displayed accordingly.



Result:
Result Proceed to
OK A
NG (w/ VSC switch) B
NG (w/o VSC switch) C



A

REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ECU>REMOVAL


B

REPLACE STEERING SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>STEERING ANGLE SENSOR (w/ VSC)>REMOVAL


C

REPLACE COMBINATION SWITCH ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>REMOVAL


3.INSPECT HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY
a.

Remove the headlight cleaner motor and pump assembly.

Click hereVehicle Exterior>WIPER / WASHER>HEADLIGHT CLEANER MOTOR>REMOVAL


b.

Inspect the headlight cleaner motor and pump assembly.

Click hereVehicle Exterior>WIPER / WASHER>HEADLIGHT CLEANER MOTOR>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

4.INSPECT HEADLIGHT CLEANER CONTROL RELAY (H-LP CLN)

NG

REPLACE HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY

Click hereVehicle Exterior>WIPER / WASHER>HEADLIGHT CLEANER MOTOR>REMOVAL


4.INSPECT HEADLIGHT CLEANER CONTROL RELAY (H-LP CLN)
a.

Inspect the headlight cleaner control relay (H-LP CLN).

Click hereVehicle Exterior>WIPER / WASHER>RELAY>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY [H-LP CLN] AND BODY GROUND)

NG

REPLACE HEADLIGHT CLEANER CONTROL RELAY (H-LP CLN)

5.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER MOTOR AND PUMP ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY [H-LP CLN] AND BODY GROUND)
a.

Disconnect the A53 headlight cleaner motor and pump assembly connector.


b.

Remove the headlight cleaner control relay (H-LP CLN) from the No. 1 engine room relay block assembly.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A53-2 (B) - Headlight cleaner control relay (H-LP CLN) terminal 5 Always Below 1 Ω
A53-1 (L) - Body ground Always Below 1 Ω
A53-2 (B) or Headlight cleaner control relay (H-LP CLN) terminal 5 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY [H-LP CLN] - HEADLIGHT ECU SUB-ASSEMBLY RH, BATTERY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY [H-LP CLN] - HEADLIGHT ECU SUB-ASSEMBLY RH, BATTERY AND BODY GROUND)
a.

Remove the headlight cleaner control relay (H-LP CLN) from the No. 1 engine room relay block assembly.


b.

Disconnect the A55 headlight ECU sub-assembly RH connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
Headlight cleaner control relay (H-LP CLN) terminal 2 - A55-7 (HLC) Always Below 1 Ω
Headlight cleaner control relay (H-LP CLN) terminal 2 or A55-7 (HLC) - Body ground Always 10 kΩ or higher



d.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
Headlight cleaner control relay (H-LP CLN) terminal 1 - Body ground Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V
Headlight cleaner control relay (H-LP CLN) terminal 3 - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR