BLIND SPOT MONITOR SYSTEM Power Source Circuit

DESCRIPTION

This circuit provides power to operate the blind spot monitor sensor.

WIRING DIAGRAM

A01H23SE11

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BATTERY)


    1. A01H1W7E18

      Disconnect the blind spot monitor sensor LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      m2-5 (BLB) - Body ground Power switch on (IG) 11 to 14 V
      m2-5 (BLB) - Body ground Power switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BODY GROUND)


    1. A01H1W7E17

      Disconnect the blind spot monitor sensor LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      m2-10 (BLGD) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BATTERY)


    1. A01H1W7E15

      Disconnect the blind spot monitor sensor RH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      m1-5 (BRB) - Body ground Power switch on (IG) 11 to 14 V
      m1-5 (BRB) - Body ground Power switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BODY GROUND)


    1. A01H1W7E16

      Disconnect the blind spot monitor sensor RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      m1-10 (BRGD) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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