PANORAMIC VIEW MONITOR SYSTEM ECU Power Source Circuit

DESCRIPTION

This circuit is the power source circuit to operate the parking assist ECU. The parking assist ECU controls the panoramic view monitor system.

WIRING DIAGRAM


  1. w/o Stop and Start System

    A01RCI8E09

  2. w/ Stop and Start System

    A01RE04E03
    *a from Engine Stop and Start ECU
    *b Parking Assist ECU

CAUTION / NOTICE / HINT

Note

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

Tech Tips


  • The parking assist ECU is connected to other ECUs via CAN communication or AVC-LAN communication.

  • If the parking assist ECU does not operate due to a power source problem, the audio and visual system*1 or navigation system*2 DTC may be stored due to an AVC-LAN communication interruption.

  • If the parking assist ECU does not operate due to a power source problem, other system DTCs may be stored due to a CAN communication interruption.


  • *1: w/ Audio and Visual System (for 8 Inch Display)

  • *2: w/ Navigation System

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BODY GROUND)


    1. Disconnect the J73 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J73-3 (GND1) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU POWER SSOURCE)


    1. Disconnect the J73 parking assist ECU connector.

    2. A01RDFRC15
      *a

      Front view of wire harness connector

      (to Parking Assist ECU)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      J73-2 (+B) - J73-3 (GND1) Always

      11 to 14 V*1

      10.5 to 16 V*2
      J73-1 (ACC) - J73-3 (GND1) Engine switch on (ACC)

      11 to 14 V*1

      10.5 to 16 V*2
      Engine switch off Below 1 V
      J73-6 (IG) - J73-3 (GND1) Engine switch on (IG)

      11 to 14 V*1

      10.5 to 16 V*2
      Engine switch off Below 1 V

      • *1: w/o Stop and Start System

      • *2: w/ Stop and Start System

      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    A

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

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    C

    GO TO STOP AND START SYSTEM