WIPER SWITCH INSPECTION

PROCEDURE

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (for RHD)

   
   
   1. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the windshield wiper switch assembly.

      
      

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

         Standard Resistance
         Front Wiper Switch Tester Connection Switch Condition Specified Condition D58-2 (+1) - D58-3 (+B) MIST Below 1 Ω D58-2 (+1) - D58-4 (+S) OFF D58-2 (+1) - D58-4 (+S) INT D58-2 (+1) - D58-3 (+B) LO D58-1 (+2) - D58-3 (+B) HI

         If the result is not as specified, replace the windshield wiper switch.

   2. Check the front washer switch.

      
      

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

         Standard Resistance
         Tester Connection Switch Condition Specified Condition D57-1 (WF) - D57-2 (EW) ON Below 1 Ω OFF 10 kΩ or higher

         If the result is not as specified, replace the windshield wiper switch.

   3. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the intermittent operation.

      
      

      1. Turn the ignition switch to on and turn the windshield wiper switch assembly to INT.

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

         Tech Tips

         Measure the voltage from the rear of the connectors while they are connected to the windshield wiper switch assembly.

         Specified Condition
         Voltage changes as shown in the illustration below.

         

         Text in Illustration

         *a	Voltage between terminals D57-2 (EW) and D58-4 (+S)	*b	WIPER OPERATION
         *c	STOP	*d	START
         *e	0.6 to 2.6 seconds	*f	5.7 to 15.7 seconds
         *g	FAST	*h	SLOW

   4. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the washer operation.

      
      

      1. Turn the ignition switch to on and turn the windshield wiper switch assembly off.

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

         Tech Tips

         Measure the voltage from the rear of the connectors while they are connected to the windshield wiper switch assembly.

         Specified Condition
         Voltage changes as shown in the illustration below.

         

         Text in Illustration

         *1	Washer Switch	-	-
         *a	Voltage between terminals D57-1 (WF) - D57-2 (EW)	*b	Approximately 0.2 seconds
         *c	Approximately 2.2 seconds	-	-

         If the result is not as specified, replace the windshield wiper switch assembly.

2. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (for LHD)

   
   
   1. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the windshield wiper switch assembly.

      
      

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

         Standard Resistance
         Front Wiper Switch Tester Connection Switch Condition Specified Condition D58-3 (+1) - D58-2 (+B) MIST Below 1 Ω D58-3 (+1) - D58-1 (+S) OFF D58-3 (+1) - D58-1 (+S) INT D58-3 (+1) - D58-2 (+B) LO D58-4 (+2) - D58-2 (+B) HI

         If the result is not as specified, replace the windshield wiper switch.

   2. Check the front washer switch.

      
      

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

         Standard Resistance
         Tester Connection Switch Condition Specified Condition D57-3 (WF) - D57-2 (EW) ON Below 1 Ω OFF 10 kΩ or higher

         If the result is not as specified, replace the windshield wiper switch.

   3. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the intermittent operation.

      
      

      1. Turn the ignition switch to on and turn the windshield wiper switch assembly to INT.

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

         Tech Tips

         Measure the voltage from the rear of the connectors while they are connected to the windshield wiper switch assembly.

         Specified Condition
         Voltage changes as shown in the illustration below.

         

         Text in Illustration

         *a	Voltage between terminals D57-2 (EW) and D58-1 (+S)	*b	WIPER OPERATION
         *c	STOP	*d	START
         *e	0.6 to 2.6 seconds	*f	5.7 to 15.7 seconds
         *g	FAST	*h	SLOW

   4. 

      Text in Illustration

      *a	Component without harness connected (Windshield Wiper Switch Assembly)

      Check the washer operation.

      
      

      1. Turn the ignition switch to on and turn off the windshield wiper switch assembly.

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

         Tech Tips

         Measure the voltage from the rear of the connectors while they are connected to the windshield wiper switch assembly.

         Specified Condition
         Voltage changes as shown in the illustration below.

         

         Text in Illustration

         *1	Washer Switch	-	-
         *a	Voltage between terminals D57-3 (WF) - D57-2 (EW)	*b	Approximately 0.2 seconds
         *c	Approximately 2.2 seconds	-	-

         If the result is not as specified, replace the windshield wiper switch assembly.