WIPER AND WASHER SYSTEM Wiper Motor Power Source Circuit

DESCRIPTION

This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Wiper / Data List.

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

      
      Body Electrical > Wiper > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Status of Power Supply Voltage	Front wiper motor and link assembly input voltage	Normal or Abnormal	Normal: 6.6 to 17.9 V Abnormal: Below 6.5 V or 18.0 V Higher	-

      
      Body Electrical > Wiper > Data List

      Tester Display
      Status of Power Supply Voltage

      OK
      The GTS display is normal.

      Result
      Proceed to OK NG

   
   

   OK

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

   NG

2. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - BODY GROUND)

   
   

   1. Disconnect the i1 front wiper motor and link assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition i1-4 (+S) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   CHECK WIPER MOTOR WIRE Click here

   OK

3. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - POWER SOURCE)

   
   

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

      Standard Voltage
      Tester Connection Condition Specified Condition i1-3 (L) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE FRONT WIPER MOTOR AND LINK ASSEMBLY Click here

   NG

4. CHECK WIPER MOTOR WIRE

   
   

   1. Remove the wiper motor wire.

      Click here

   2. 

      *a	Front view of wire harness connector (to Front Wiper Motor and Link Assembly)
      *b	Front view of wire harness connector (to Wire Harness)

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

      Standard Resistance
      Tester Connection Condition Specified Condition i1-3 (L) - iA1-2 Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE WIPER MOTOR WIRE Click here

   OK

5. INSPECT WIPER RELAY

   
   

   1. Remove the WIPER relay.

   2. Inspect the WIPER relay.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE WIPER RELAY Click here

   OK

6. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - POWER SOURCE, BODY GROUND)

   
   
   1. 

      *a	Front view of wire harness connector (to WIPER relay)

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

      Standard Voltage
      Tester Connection Condition Specified Condition 5 - Body ground Always 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition 2 - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

7. CHECK HARNESS AND CONNECTOR (WIPER RELAY - FRONT WIPER MOTOR AND LINK ASSEMBLY)

   
   

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

      Standard Resistance
      Tester Connection Condition Specified Condition 3 - i1-3 (L) Always Below 1 Ω 3 or i1-3 (L) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

8. CHECK HARNESS AND CONNECTOR (WIPER RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

   
   

   1. Disconnect the J8 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 - J8-9 (PWS) Always Below 1 Ω 1 or J8-9 (PWS) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

9. CHECK WIPER MOTOR WIRE

   
   

   1. Remove the wiper motor wire.

      Click here

   2. 

      *a	Front view of wire harness connector (to Front Wiper Motor and Link Assembly)
      *b	Front view of wire harness connector (to Wire Harness)

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

      Standard Resistance
      Tester Connection Condition Specified Condition i1-4 (+S) - iA1-3 Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   OK

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   NG

   REPLACE WIPER MOTOR WIRE Click here