RM38N0EC _59 Vehicle Exterior _111846 WIPER / WASHER _0505202 WIPER AND WASHER SYSTEM J

WIPER / WASHER  WIPER AND WASHER SYSTEM  Front Wiper Motor Circuit  


DESCRIPTION

The windshield wiper relay assembly controls the windshield wiper motor assembly through this circuit.

WIRING DIAGRAM

E394730E36
1.521,0.594 1.833,0.792 0.313,0.198 10 false A80 1.594,0.375 1.75,0.573 0.156,0.198 10 false 4 1.24,0.594 1.552,0.792 0.313,0.198 10 false +2 4.49,0.969 4.802,1.167 0.313,0.198 10 false +S 6.51,1 6.667,1.198 0.156,0.198 10 false E 4.281,0.469 4.531,0.948 0.25,0.479 10 false 4 4.281,0.979 4.438,1.177 0.156,0.198 10 false 3 4.281,1.448 4.531,1.854 0.25,0.406 10 false 1 1.521,1.104 1.833,1.302 0.313,0.198 10 false A81 1.521,1.583 1.833,1.781 0.313,0.198 10 false A80 1.094,1.115 1.458,1.354 0.365,0.24 10 false +SM 1.24,1.573 1.552,1.771 0.313,0.198 10 false +1 1.583,0.875 1.948,1.115 0.365,0.24 10 false 6 1.583,1.365 1.948,1.604 0.365,0.24 10 false 2 0.135,2.375 1.625,3 1.49,0.625 10 false Windshield Wiper Relay Assembly 4.479,0.469 4.792,0.667 0.313,0.198 10 false +2 4.49,1.458 4.802,1.656 0.313,0.198 10 false +1 6.719,1 6.969,1.406 0.25,0.406 10 false 5 4.531,2.552 5.323,2.729 0.792,0.177 10 false A38 4.531,2.75 7.094,3.375 2.563,0.625 10 false Windshield Wiper Motor Assembly

PROCEDURE

1.PERFORM ACTIVE TEST USING GTS
a.

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

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Front Wiper Lo Operation Function to operate the windshield wiper motor assembly in LO OFF or ON -
Front Wiper Hi Operation Function to operate the windshield wiper motor assembly in HI OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Front Wiper Lo Operation
50004 449 72
Body Electrical > Main Body > Active Test
Tester Display
Front Wiper Hi Operation
50004 449 73
OK:

Windshield wiper motor assembly operates normally.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>WIPER / WASHER>WIPER AND WASHER SYSTEM>PROBLEM SYMPTOMS TABLE


NG

2.INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY
2.INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY
a.

Remove the windshield wiper motor assembly.

Click hereVehicle Exterior>WIPER / WASHER>FRONT WIPER MOTOR>REMOVAL


b.

Inspect the windshield wiper motor assembly.

Click hereVehicle Exterior>WIPER / WASHER>FRONT WIPER MOTOR>INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - WINDSHIELD WIPER MOTOR ASSEMBLY)

NG

REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY

Click hereVehicle Exterior>WIPER / WASHER>FRONT WIPER MOTOR>REMOVAL


3.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - WINDSHIELD WIPER MOTOR ASSEMBLY)
a.

Disconnect the A80 and A81 windshield wiper relay assembly connectors.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A80,A38,A81)Location & Routing

Click Connector(A80)Instrument Panel>Engine Room Main Wire>Windshield Wiper Relay Assembly

Click Connector(A38)Engine Compartment>Engine Room Main Wire / Transmission Wire>Windshield Wiper Motor Assembly

Click Connector(A81)Instrument Panel>Engine Room Main Wire>Windshield Wiper Relay Assembly

A80-2 (+1) - A38-1 (+1) Always Below 1 Ω
A80-4 (+2) - A38-4 (+2) Always Below 1 Ω
A81-6 (+SM) - A38-3 (+S) Always Below 1 Ω
A80-2 (+1) or A38-1 (+1) - Body ground Always 10 kΩ or higher
A80-4 (+2) or A38-4 (+2) - Body ground Always 10 kΩ or higher
A81-6 (+SM) or A38-3 (+S) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - BODY GROUND)
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A38)Location & Routing

Click Connector(A38)Engine Compartment>Engine Room Main Wire / Transmission Wire>Windshield Wiper Motor Assembly

A38-5 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE WINDSHIELD WIPER RELAY ASSEMBLY

Click hereVehicle Exterior>WIPER / WASHER>WIPER ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR