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

Figure 1. w/o Stop and Start System

B00590EE04

Figure 2. w/ Stop and Start System

A01HF1YE01
*a from BBC NO.3 Fuse
*b from Engine Stop and Start ECU
*c 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.

  • w/ Navigation System:

    If the parking assist ECU does not operate due to a power source problem, a navigation system DTC may be stored due to an AVC-LAN communication interruption.

  • w/o Navigation System:

    If the parking assist ECU does not operate due to a power source problem, an audio and visual system 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.

  • w/ Stop and Start System:

    The panoramic view monitor system troubleshooting procedure is based on the premise that the stop and startsystem is operating normally. Check the stop and start system first before troubleshooting the panoramic view monitor system.

PROCEDURE


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


    1. A01HHMZC07
      *a

      Front view of wire harness connector

      (to Parking Assist ECU)

      Disconnect the parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P19-3 (GND1) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      P19-2 (+B) - P19-3 (GND1) Always 10 to 16 V
      P19-1 (ACC) - P19-3 (GND1) Engine switch on (ACC) 10 to 16 V
      Engine switch off Below 1 V
      P19-6 (IG) - P19-3 (GND1) Engine switch on (IG) 10 to 16 V
      Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR