NAVIGATION SYSTEM Reverse Signal Circuit

DESCRIPTION

The navigation ECU sub-assembly receives a reverse signal from the park/neutral position switch assembly to use for adjusting the vehicle position on the navigation display.

WIRING DIAGRAM


  1. w/ Front Center Speaker

    A01CFIJE08

  2. w/o Front Center Speaker

    A01CFIJE29

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)


    1. Disconnect the F23 navigation ECU sub-assembly connector (w/ Front Center Speaker).

    2. Disconnect the F36 navigation ECU sub-assembly connector (w/o Front Center Speaker).

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

      Standard Voltage
      w/ Front Center Speaker
      Tester Connection Condition Specified Condition
      F23-57 (REV) - Body ground

      Engine switch on (IG)

      Shift lever in R

      		 11 to 14 V
      F23-57 (REV) - Body ground

      Engine switch on (IG)

      Shift lever in any position other than R

      		 Below 1 V
      w/o Front Center Speaker
      Tester Connection Condition Specified Condition
      F36-2 (REV) - Body ground

      Engine switch on (IG)

      Shift lever in R

      		 11 to 14 V
      F36-2 (REV) - Body ground

      Engine switch on (IG)

      Shift lever in any position other than R

      		 Below 1 V

    NG

    CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) Click here

    OK

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

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)


    1. Disconnect the F23 navigation ECU sub-assembly connector (w/ Front Center Speaker).

    2. Disconnect the F36 navigation ECU sub-assembly connector (w/o Front Center Speaker).

    3. Disconnect the D3 park/neutral position switch assembly connector.

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

      Standard Resistance
      w/ Front Center Speaker (for 2GR-FE)
      Tester Connection Condition Specified Condition
      F23-57 (REV) - D3-2 (RL) Always Below 1 Ω
      F23-57 (REV) - Body ground Always 10 kΩ or higher
      w/ Front Center Speaker (for 2AZ-FE)
      Tester Connection Condition Specified Condition
      F23-57 (REV) - D3-1 (RL) Always Below 1 Ω
      F23-57 (REV) - Body ground Always 10 kΩ or higher
      w/o Front Center Speaker (for 2GR-FE)
      Tester Connection Condition Specified Condition
      F36-2 (REV) - D3-2 (RL) Always Below 1 Ω
      F36-2 (REV) - Body ground Always 10 kΩ or higher
      w/o Front Center Speaker (for 2AZ-FE)
      Tester Connection Condition Specified Condition
      F36-2 (REV) - D3-1 (RL) Always Below 1 Ω
      F36-2 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY)


    1. Disconnect the D3 park/neutral position switch assembly connector.

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

      Standard Voltage
      for 2GR-FE
      Tester Connection Condition Specified Condition
      D3-1 (RB) - Body ground Engine switch on (IG) 11 to 14 V
      for 2AZ-FE
      Tester Connection Condition Specified Condition
      D3-2 (RB) - Body ground Engine switch on (IG) 11 to 14 V

    3. Proceed to the next step based on the check result.

      Result
      Result Proceed to
      NG A
      OK (for 2GR-FE) B
      OK (for 2AZ-FE) C

    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (for 2GR-FE) Click here

    C

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (for 2AZ-FE) Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR