WIPER AND WASHER SYSTEM > Front Wiper Motor Circuit

for Preparation Click here


DESCRIPTION

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

WIRING DIAGRAM


E192842E07


INSPECTION PROCEDURE

1.INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY


  1. for LHD:

    1. Remove the windshield wiper motor assembly (Click here).



      2. E144461E63

    2. Check low speed operation.
      Connect an auxiliary 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.

    3. Check high speed operation.
      Connect an auxiliary 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.

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



  1. for RHD:

    1. Remove the windshield wiper motor assembly (Click here).



      2. E144461E64

    2. Check low speed operation.
      Connect an auxiliary 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.

    3. Check high speed operation.
      Connect an auxiliary 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.

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



NG
REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY (Click here)
OK


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


  1. for LHD:



      E144463E20

    1. Disconnect the A32 windshield wiper motor connector.

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      A32-2 (B) - Body ground
      		Power switch on (IG)
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A32-4 (E) - Body ground
      		Always
      		Below 1 Ω

      Text in Illustration 
      *a
      		Front view of wire harness connector
      (to Windshield Wiper Motor Assembly)



  1. for RHD:



      E144463E21

    1. Disconnect the A32 windshield wiper motor connector.

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      A32-2 (B) - Body ground
      		Power switch on (IG)
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A32-5 (E) - Body ground
      		Always
      		Below 1 Ω

      Text in Illustration 
      *a
      		Front view of wire harness connector
      (to Windshield Wiper Motor Assembly)



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


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

  1. for LHD:

    1. Disconnect the H75 windshield wiper relay assembly connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A32-5 (+1) - H75-2 (+1)
      		Always
      		Below 1 Ω
      A32-5 (+1) - Body ground
      		Always
      		10 kΩ or higher
      A32-3 (+2) - H75-3 (+2)
      		Always
      		Below 1 Ω
      A32-3 (+2) - Body ground
      		Always
      		10 kΩ or higher
      A32-1 (+S) - H75-10 (+SM)
      		Always
      		Below 1 Ω
      A32-1 (+S) - Body ground
      		Always
      		10 kΩ or higher

  1. for RHD:

    1. Disconnect the H75 windshield wiper relay assembly connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A32-1 (+1) - H75-2 (+1)
      		Always
      		Below 1 Ω
      A32-1 (+1) - Body ground
      		Always
      		10 kΩ or higher
      A32-4 (+2) - H75-3 (+2)
      		Always
      		Below 1 Ω
      A32-4 (+2) - Body ground
      		Always
      		10 kΩ or higher
      A32-3 (+S) - H75-10 (+SM)
      		Always
      		Below 1 Ω
      A32-3 (+S) - Body ground
      		Always
      		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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