RM38T0EC _59 Vehicle Exterior _114146 WIPER / WASHER _0510034 WIPER AND WASHER SYSTEM J

WIPER / WASHER  WIPER AND WASHER SYSTEM  Wiper and Washer Switch Circuit  


DESCRIPTION

The condition of the windshield wiper switch assembly is detected and sent to the steering sensor in this circuit.

WIRING DIAGRAM

E475928E02
0.833,7.719 3.125,7.917 2.292,0.198 10 false Steering Sensor 2.729,7.677 3.708,8.135 0.979,0.458 10 false Steering Wheel Switch Housing 4.313,7.76 6.917,8.104 2.604,0.344 10 false Windshield Wiper Switch Assembly 2.563,6.313 2.875,6.51 0.313,0.198 10 false z15 2.552,1.542 2.865,1.74 0.313,0.198 10 false z15 2.563,2.427 2.875,2.625 0.313,0.198 10 false z15 2.563,2 2.875,2.198 0.313,0.198 10 false z15 2.563,2.844 2.875,3.042 0.313,0.198 10 false z15 2.563,3.26 2.875,3.458 0.313,0.198 10 false z15 2.552,5.406 2.865,5.604 0.313,0.198 10 false z15 2.563,5.854 2.875,6.052 0.313,0.198 10 false z15 3.458,1.542 3.771,1.74 0.313,0.198 10 false z16 3.458,2 3.771,2.198 0.313,0.198 10 false z16 3.469,2.427 3.781,2.625 0.313,0.198 10 false z16 3.458,2.844 3.771,3.042 0.313,0.198 10 false z16 3.469,3.26 3.781,3.458 0.313,0.198 10 false z16 3.458,5.406 3.771,5.604 0.313,0.198 10 false z16 3.469,5.854 3.781,6.052 0.313,0.198 10 false z16 3.458,6.313 3.771,6.51 0.313,0.198 10 false z16 2.135,1.427 2.594,1.625 0.458,0.198 10 false MIST 2,1.896 2.531,2.094 0.531,0.198 10 false W_OFF 2.271,2.313 2.802,2.51 0.531,0.198 10 false +S 2.281,2.729 2.813,2.927 0.531,0.198 10 false +1 2.344,5.75 2.875,5.948 0.531,0.198 10 false E 2.219,5.292 2.75,5.49 0.531,0.198 10 false WF 2.292,3.156 2.823,3.354 0.531,0.198 10 false +2 2.219,6.208 2.75,6.406 0.531,0.198 10 false WR 6.542,6.323 7.073,6.521 0.531,0.198 10 false WR 6.594,5.854 7.125,6.052 0.531,0.198 10 false E 6.552,5.417 7.083,5.615 0.531,0.198 10 false WF 5.729,4.979 6.365,5.188 0.635,0.208 10 false Fr WASH 4.25,4.969 5.083,5.313 0.833,0.344 10 false Rr WASH 5.177,4.969 5.813,5.177 0.635,0.208 10 false OFF 5.042,6.677 6.292,7.01 1.25,0.333 10 false Washer Switch 4.76,4.063 6.052,4.396 1.292,0.333 10 false Front Wiper Switch 6.51,3.698 7.042,3.896 0.531,0.198 10 false E 6.458,3.292 6.99,3.49 0.531,0.198 10 false +2 6.458,2.844 6.99,3.042 0.531,0.198 10 false +1 6.458,2.417 6.99,2.615 0.531,0.198 10 false +S 6.344,2 6.875,2.198 0.531,0.198 10 false W_OFF 6.396,1.51 6.854,1.708 0.458,0.198 10 false MIST 5.823,1.073 6.281,1.271 0.458,0.198 10 false MIST 5.385,1.073 5.917,1.271 0.531,0.198 10 false OFF 4.885,1.063 5.573,1.271 0.688,0.208 10 false INT 4.427,1.073 4.958,1.271 0.531,0.198 10 false LO 3.948,1.073 4.479,1.271 0.531,0.198 10 false HI 1.313,0.406 1.771,0.604 0.458,0.198 10 false 5 V 3.5,1.354 3.958,1.552 0.458,0.198 10 false 14 3.5,1.813 3.958,2.01 0.458,0.198 10 false 10 3.5,2.25 3.958,2.448 0.458,0.198 10 false 13 3.5,2.656 3.958,2.854 0.458,0.198 10 false 11 3.5,3.083 3.958,3.281 0.458,0.198 10 false 12 3.49,5.219 3.948,5.417 0.458,0.198 10 false 15 3.531,5.677 3.99,5.875 0.458,0.198 10 false 5 3.531,6.135 3.99,6.333 0.458,0.198 10 false 9 2.594,6.135 3.052,6.333 0.458,0.198 10 false 32 2.594,5.667 3.052,5.865 0.458,0.198 10 false 33 2.594,5.219 3.052,5.417 0.458,0.198 10 false 31 2.604,3.073 3.063,3.271 0.458,0.198 10 false 27 2.604,2.656 3.063,2.854 0.458,0.198 10 false 26 2.604,2.25 3.063,2.448 0.458,0.198 10 false 25 2.604,1.813 3.063,2.01 0.458,0.198 10 false 24 2.604,1.354 3.063,1.552 0.458,0.198 10 false 28 0.354,4.167 0.813,4.365 0.458,0.198 10 false IC

E475910E02
2.458,4.813 2.771,5.01 0.313,0.198 10 false z15 2.458,4.042 2.771,4.24 0.313,0.198 10 false z15 3.5,4.823 3.813,5.021 0.313,0.198 10 false z16 3.51,4.042 3.823,4.24 0.313,0.198 10 false z16 3.5,2.115 3.813,2.313 0.313,0.198 10 false z16 2.458,2.115 2.771,2.313 0.313,0.198 10 false z15 0.406,3.469 0.719,3.667 0.313,0.198 10 false IC 2.469,6.521 2.781,6.719 0.313,0.198 10 false I229 2.156,6.406 2.469,6.604 0.313,0.198 10 false 2S 4.438,6.531 4.75,6.729 0.313,0.198 10 false 2S 4.208,6.406 4.521,6.604 0.313,0.198 10 false 3 4.146,7.573 4.458,7.771 0.313,0.198 10 false 12 4.417,7.698 4.729,7.896 0.313,0.198 10 false WHI 4.354,6.927 4.667,7.125 0.313,0.198 10 false A56 4.354,8.052 4.667,8.25 0.313,0.198 10 false I85 4.333,8.25 6.5,8.583 2.167,0.333 10 false Main Body ECU (Multiplex Network Body ECU) 4.333,7.083 6.5,7.583 2.167,0.5 10 false Windshield Wiper Relay Assembly 0.781,6.927 2.948,7.427 2.167,0.5 10 false Steering Sensor 2.667,5.385 3.667,5.885 1,0.5 10 false Steering Wheel Switch Housing 4.667,2.729 7.01,3.125 2.344,0.396 10 false Intermittent Time Adjustment Switch 3.844,2.021 4.156,2.219 0.313,0.198 10 false VR 2.135,2.021 2.448,2.219 0.313,0.198 10 false VR 2.49,1.938 2.802,2.135 0.313,0.198 10 false 34 3.573,1.948 3.885,2.146 0.313,0.198 10 false 4 3.573,3.875 3.885,4.073 0.313,0.198 10 false 7 3.573,4.646 3.885,4.844 0.313,0.198 10 false 6 2.49,4.635 2.802,4.833 0.313,0.198 10 false 30 2.49,3.854 2.802,4.052 0.313,0.198 10 false 29 3.833,4.729 4.146,4.927 0.313,0.198 10 false +1R 2.063,4.719 2.375,4.917 0.313,0.198 10 false +1R 2.063,3.938 2.458,4.135 0.396,0.198 10 false C1R 3.833,3.938 4.146,4.135 0.313,0.198 10 false C1R 6.521,4.052 6.833,4.25 0.313,0.198 10 false C1R 6.531,4.333 6.844,4.531 0.313,0.198 10 false +1R 6.615,3.719 6.927,3.917 0.313,0.198 10 false E 6.604,2.417 6.917,2.615 0.313,0.198 10 false E 6.01,3.375 6.323,3.573 0.313,0.198 10 false OFF 5.406,3.365 5.969,3.594 0.563,0.229 10 false Rr INT 4.781,3.365 5.344,3.594 0.563,0.229 10 false Rr ON 6.573,2.135 6.885,2.333 0.313,0.198 10 false VR 4.854,0.781 5.167,0.979 0.313,0.198 10 false P4 5.26,0.781 5.573,0.979 0.313,0.198 10 false P3 5.656,0.781 5.969,0.979 0.313,0.198 10 false P2 6.094,0.781 6.406,0.979 0.313,0.198 10 false P1 6.583,1.167 6.896,1.365 0.313,0.198 10 false P1 6.573,1.5 6.885,1.698 0.313,0.198 10 false P2 6.573,1.802 6.885,2 0.313,0.198 10 false P3 4.333,5.333 7,5.667 2.667,0.333 10 false Windshield Wiper Switch Assembly 5.198,4.667 6.531,5.167 1.333,0.5 10 false Rear Wiper Switch 2.552,6.344 2.865,6.542 0.313,0.198 10 false 2


PROCEDURE

1.READ VALUE USING GTS
a.

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

Chassis > Steering Angle Sensor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Wiper OFF Switch Front wiper switch OFF position signal OFF or ON OFF: Front wiper switch not in OFF position
ON: Front wiper switch in OFF position 		-
Wiper Auto/Int Switch Front wiper switch INT position signal OFF or ON OFF: Front wiper switch not in INT position
ON: Front wiper switch in INT position 		-
Wiper Lo Switch Front wiper switch LO position signal OFF or ON OFF: Front wiper switch not in LO position
ON: Front wiper switch in LO position 		-
Wiper Hi Switch Front wiper switch HI position signal OFF or ON OFF: Front wiper switch not in HI position
ON: Front wiper switch in HI position 		-
Wiper Mist Switch Front wiper switch MIST position signal OFF or ON OFF: Front wiper switch not in MIST position
ON: Front wiper switch in MIST position 		-
Washer Switch Washer switch Fr WASH position signal OFF or ON OFF: Washer switch not in Fr WASH position
ON: Washer switch in Fr WASH position 		-
Rear Wiper INT Switch Rear wiper switch Rr INT position signal OFF or ON OFF: Rear wiper switch not in Rr ON position
ON: Rear wiper switch in Rr ON position 		-
Rear Wiper ON Switch Rear wiper switch Rr ON position signal OFF or ON OFF: Rear wiper switch not in Rr ON position
ON: Rear wiper switch in Rr ON position 		-
Rear Washer Switch Washer switch Rr WASH position signal OFF or ON OFF: Washer switch not in Rr WASH position
ON: Washer switch in Rr WASH position 		-
Intermittent Time Volume (Shortest) Intermittent time adjustment switch condition Shortest Shortest: P4 *1
Intermittent Time Volume (Shorter) Intermittent time adjustment switch condition Shorter Shorter: P3 *1
Intermittent Time Volume (Longer) Intermittent time adjustment switch condition Longer Longer: P2 *1
Intermittent Time Volume (Longest) Intermittent time adjustment switch condition Longest Longest: P1 *1

*1: Refer to Inspection for each position of the switch.

Click hereVehicle Exterior>WIPER / WASHER>WIPER SWITCH>INSPECTION


Chassis > Steering Angle Sensor > Data List
Tester Display
Wiper OFF Switch
Wiper Auto/Int Switch
Wiper Lo Switch
Wiper Hi Switch
Wiper Mist Switch
Washer Switch
Rear Wiper INT Switch
Rear Wiper ON Switch
Rear Washer Switch
Intermittent Time Volume (Shortest)
Intermittent Time Volume (Shorter)
Intermittent Time Volume (Longer)
Intermittent Time Volume (Longest)
50003 445 15,16,17,18,19,20,21,22,23,24,25,26,27
OK:

The GTS display changes correctly in response to the windshield wiper switch assembly operation.



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 SWITCH ASSEMBLY
2.INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

Click hereVehicle Exterior>WIPER / WASHER>WIPER SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

3.INSPECT STEERING WHEEL SWITCH HOUSING

NG

REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY

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


3.INSPECT STEERING WHEEL SWITCH HOUSING

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>INSPECTION

Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - WINDSHIELD WIPER RELAY ASSEMBLY)

NG

REPLACE STEERING WHEEL SWITCH HOUSING

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>REMOVAL


4.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - WINDSHIELD WIPER RELAY ASSEMBLY)
a.

Disconnect the A56 windshield wiper relay assembly connector.


b.

Disconnect the I85 main body ECU (multiplex network body ECU) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I229-2 (2S) - A56-3 (2S) Always Below 1 Ω
I229-2 (2S) or A56-3 (2S) - Body ground Always 10 kΩ or higher
I229-2 (2S) - I85-12 (WHI) Always Below 1 Ω
I229-2 (2S) or I85-12 (WHI) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY)
a.

Connect the A56 windshield wiper relay assembly connector.


b.

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


Standard Resistance:
Tester Connection Condition Specified Condition
I229-2 (2S) - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

6.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE WINDSHIELD WIPER RELAY ASSEMBLY

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


6.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
a.

Disconnect the A56 windshield wiper relay assembly connector.


b.

Connect the I85 main body ECU (multiplex network body ECU) connector.


c.

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


Standard Resistance:
Tester Connection Condition Specified Condition
I229-2 (2S) - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

REPLACE STEERING SENSOR

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>REMOVAL


NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL