NAVIGATION SYSTEM (for Navigation Receiver Type) 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

A011UNBE13

INSPECTION PROCEDURE

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)

    1. Disconnect the navigation ECU sub-assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I67-2 (REV) - Body ground

      Ignition switch ON

      Shift lever in R

      		 11 to 14 V
      I67-2 (REV) - Body ground

      Ignition switch ON

      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 navigation ECU sub-assembly connector.

    2. Disconnect the 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
      I67-2 (REV) - E4-2 (RL) Always Below 1 Ω
      I67-2 (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 park/neutral position switch assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E4-1 (RB) - Body ground Ignition switch ON 11 to 14 V

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

      Result
      Result Proceed to
      NG A
      OK (for U660E) B
      OK (for U760E) C
    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (for U660E) Click here

    C

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (for U760E) Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR