REAR VIEW MONITOR SYSTEM (w/ Side Monitor System) Reverse Signal Circuit

DESCRIPTION

The parking assist ECU receives a reverse shift position signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2.


WIRING DIAGRAM

A00JXR4E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK PARKING ASSIST ECU


    1. A00JYWZE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Parking Assist ECU)

      Disconnect the I3 parking assist ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I3-15 (REV) - Body ground Ignition switch ON, shift lever in R 11 to 14 V
      I3-15 (REV) - Body ground Ignition switch ON, shift lever in any position except R Below 1 V
      Result
      Result Proceed to
      OK A
      NG (for Automatic Transmission) B
      NG (for Manual Transmission) C

    B

    CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - PARK/NEUTRAL POSITION SWITCH) Click here

    C

    CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BACK-UP LIGHT SWITCH) Click here

    A

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

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - PARK/NEUTRAL POSITION SWITCH)


    1. Disconnect the I3 parking assist ECU connector.

    2. Disconnect the C40 park/neutral position switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I3-15 (REV) - C40-1 (RL) Always Below 1 Ω
      I3-15 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

  3. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BACK-UP LIGHT SWITCH)


    1. Disconnect the I3 parking assist ECU connector.

    2. Disconnect the C41 back-up light switch assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I3-15 (REV) - C41-1 (RL) Always Below 1 Ω
      I3-15 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here