PANORAMIC VIEW MONITOR SYSTEM ECU Power Source Circuit

DTC Code DTC Name
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

E301406E16

CAUTION / NOTICE / HINT

Note:

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

Tip:

  • 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/ Audio and Visual System (for Radio and Display Type):

    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.

PROCEDURE

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

    1. C280345C22

      *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

      a2-3 (GND1) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      a2-2 (+B) - a2-3 (GND1)

      Power switch off

      11 to 14 V

      a2-1 (ACC) - a2-3 (GND1)

      Power switch on (ACC)

      11 to 14 V

      a2-6 (IG) - a2-3 (GND1)

      Power switch on (IG)

      11 to 14 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