BLIND SPOT MONITOR SYSTEM Power Source Circuit

DESCRIPTION

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

WIRING DIAGRAM

A01FU78E20

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, BLIND SPOT MONITOR SENSOR RH - BATTERY AND BODY GROUND)


    1. A01FSIBE06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor RH)
      *b

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor LH)

      Disconnect the blind spot monitor sensor RH connector.

    2. Disconnect the blind spot monitor sensor LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      T53-5 (BRB) - Body ground Power switch on (IG) 11 to 14 V
      T53-5 (BRB) - Body ground Power switch off Below 1 V
      U59-5 (BLB) - Body ground Power switch on (IG) 11 to 14 V
      U59-5 (BLB) - Body ground Power switch off Below 1 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T53-10 (BRGD) - Body ground Always Below 1 Ω
      U59-10 (BLGD) - 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