BLIND SPOT MONITOR SYSTEM Reverse Signal Circuit

DESCRIPTION

The blind spot monitor sensor RH receives a reverse signal from the back-up light switch assembly.

WIRING DIAGRAM

B001FPDE35

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY


    1. Remove the back-up light switch assembly Click here.

    2. Inspect the back-up light switch assembly Click here.


    NG

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH ASSEMBLY - BATTERY)


    1. B001H61E02
      Text in Illustration
      *A for 1GR-FE
      *B for 1KD-FTV, 1GD-FTV
      *a

      Front view of wire harness connector

      (to Back-up Light Switch Assembly)

      Disconnect the back-up light switch assembly connector.

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

      Standard Voltage
      for 1GR-FE
      Tester Connection Switch Condition Specified Condition
      C41-2 - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      for 1KD-FTV, 1GD-FTV
      Tester Connection Switch Condition Specified Condition
      C160-1 - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BACK-UP LIGHT SWITCH ASSEMBLY)


    1. Disconnect the R43 blind spot monitor sensor RH connector.

    2. Disconnect the C41*1 or C160*2 back-up light switch assembly connector.


      • *1: for 1GR-FE

      • *2: for 1KD-FTV, 1GD-FTV

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

      Standard Resistance
      for 1GR-FE
      Tester Connection Condition Specified Condition
      R43-8 (SPR) - C41-1 Always Below 1 Ω
      R43-8 (SPR) - Body ground Always 10 kΩ or higher
      for 1KD-FTV, 1GD-FTV
      Tester Connection Condition Specified Condition
      R43-8 (SPR) - C160-2 Always Below 1 Ω
      R43-8 (SPR) - 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