WIPER AND WASHER SYSTEM Wiper and Washer Switch Circuit

Click here

DESCRIPTION

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

Click here

WIRING DIAGRAM

Click here

1. 

   for LHD

2. 

   for RHD

Click here

PROCEDURE

1. Click here

   READ VALUE USING GTS

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Chassis / Steering Angle Sensor / Data List.

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

      
      
      1. 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 AUTO position signal	OFF or ON	OFF: Front wiper switch not in AUTO position ON: Front wiper switch in AUTO 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 ON position signal	OFF or ON	OFF: Front washer switch not in ON position ON: Front washer switch in ON position	-
         Intermittent Time Volume	Auto sensitivity adjustment switch condition	Shortest, Shorter, Longer, Longest	Shortest: P4 Shorter: P3 Longer: P2 Longest: P1	*

      2. 
         
         10. 
             
         11. 
             
         12. 
             
         13. 
             
         14. 
             
         15. 
             
         16. 
             
      
      

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

        Click here

      
      
      1. 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
         Intermittent Time Volume

      2. 
         
         1. 
            
      3. 
         
         10. 
             
         11. 
             
         12. 
             
         13. 
             
         14. 
             
         15. 
             
         16. 
             

      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 TABLEClick here

   • NGClick here
2. Click here

   INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

   
   

   1. Remove the windshield wiper switch assembly.

      Click here

   2. Inspect the windshield wiper switch assembly.

      Click here

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE WINDSHIELD WIPER SWITCH ASSEMBLYClick here

3. Click here

   INSPECT STEERING WHEEL SWITCH HOUSING

   
   

   1. Remove the steering wheel switch housing.

      Click here

   2. Inspect the steering wheel switch housing.

      Click here

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE STEERING SENSORClick here

   • NG

     REPLACE STEERING WHEEL SWITCH HOUSINGClick here