WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

The windshield wiper relay assembly controls the windshield wiper motor assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY

   
   

   1. Remove the windshield wiper motor assembly Click here.

   2. 

      Text in Illustration

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

      Check the LO operation (for LHD).

      
      

      1. Connect a battery positive (+) lead to terminal 5 (+1) and a negative (-) lead to terminal 4 (E), and check that the motor operates at low speed.

         OK
         Motor operates at low speed (LO).

   3. Check the HI operation (for LHD).

      
      

      1. Connect a battery positive (+) lead to terminal 3 (+2) and a negative (-) lead to terminal 4 (E), and check that the motor operates at high speed.

         OK
         Motor operates at high speed (HI).

   4. 

      Text in Illustration

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

      Check the LO operation (for RHD).

      
      

      1. Connect a battery positive (+) lead to terminal 1 (+1) and a negative (-) lead to terminal 5 (E), and check that the motor operates at low speed.

         OK
         Motor operates at low speed (LO).

   5. Check the HI operation (for RHD).

      
      

      1. Connect a battery positive (+) lead to terminal 4 (+2) and a negative (-) lead to terminal 5 (E), and check that the motor operates at high speed.

         OK
         Motor operates at high speed (HI).

   
   

   NG

   REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY Click here

   OK

2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - IG1 NO. 1 RELAY AND BODY GROUND)

   
   

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

      Standard Voltage
      Tester Connection Condition Specified Condition A25-2 (B) - Body ground Power switch on (IG) 11 to 14 V

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

      Standard Resistance
      for LHD Tester Connection Condition Specified Condition A25-4 (E) - Body ground Always Below 1 Ω
      for RHD Tester Connection Condition Specified Condition A25-5 (E) - Body ground Always Below 1 Ω

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

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

   
   

   1. Disconnect the H51 windshield wiper relay assembly connector and H25 windshield wiper switch assembly connector.

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

      Standard Resistance
      for LHD Tester Connection Condition Specified Condition A25-1 (+S) - H51-1 (+SM) Always Below 1 Ω A25-1 (+S) - Body ground Always 10 kΩ or higher A25-3 (+2) - H51-11 (+2) Always Below 1 Ω A25-3 (+2) - H25-4 (+2) Always Below 1 Ω A25-3 (+2) - Body ground Always 10 kΩ or higher A25-5 (+1) - H25-3 (+1) Always Below 1 Ω A25-5 (+1) - Body ground Always 10 kΩ or higher
      for RHD Tester Connection Condition Specified Condition A25-3 (+S) - H51-1 (+SM) Always Below 1 Ω A25-3 (+S) - Body ground Always 10 kΩ or higher A25-4 (+2) - H51-11 (+2) Always Below 1 Ω A25-4 (+2) - H25-1 (+2) Always Below 1 Ω A25-4 (+2) - Body ground Always 10 kΩ or higher A25-1 (+1) - H25-2 (+1) Always Below 1 Ω A25-1 (+1) - Body ground Always 10 kΩ or higher

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR