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AUDIO AND VISUAL SYSTEM (for Radio and Display Type) Reverse Signal Circuit

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DTC Code DTC Name
  Reverse Signal Circuit
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DESCRIPTION

The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2.


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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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

Tip:

When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).

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PROCEDURE


  1. Click here

    CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. A01DTU7

      Enter the "Vehicle Signal Check Mode" screen. [Refer to check Vehicle Signal in Operation Check (Click here).

    2. Check that the display changes between ON and OFF according to the shift lever position.

      Table 1. OK
      Shift Lever Position Display
      R ON
      Except R OFF
      Tip:

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever position.


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    CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Disconnect the radio and display receiver assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      H51-2 (REV) - Body ground Ignition switch ON, shift lever in R 7.5 to 14 V
      H51-2 (REV) - Body ground Ignition switch ON, shift lever not in R Below 1 V
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)
      Table 3. Result
      Result Proceed to
      OK A
      NG (for Automatic Transmission) B
      NG (for Manual Transmission) C

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    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)


    1. Disconnect the H51 radio and display receiver assembly 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
      H51-2 (REV) - C40-1 (RL) Always Below 1 Ω
      H51-2 (REV) - Body ground Always 10 kΩ or higher

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


    1. A01DSFAE11

      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 Switch Condition Specified Condition
      C40-2 (RB) - Body ground Ignition switch ON 11 to 14 V
      Table 4. Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/neutral Position Switch Assembly)
      Table 5. Result
      Result Proceed to
      OK (for A343F) A
      OK (for A750F) B
      NG C

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    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)


    1. Disconnect the H51 radio and display receiver assembly connector.

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H51-2 (REV) - C41-1 Always Below 1 Ω
      H51-2 (REV) - Body ground Always 10 kΩ or higher

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    CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH ASSEMBLY - BATTERY)


    1. A01DU6QE02

      Disconnect the back-up light switch assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C41-2 - Body ground Ignition switch ON 11 to 14 V
      Table 6. Text in Illustration
      *a

      Front view of wire harness connector

      (to Back-up Light Switch Assembly)
      Table 7. Result
      Result Proceed to
      OK (for R150F) A
      OK (for RA61F) B
      OK (for G52F) C
      NG D

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    REPLACE BACK-UP LIGHT SWITCH ASSEMBLYClick here

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    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

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    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLYClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLYClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLYClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPLACE BACK-UP LIGHT SWITCH ASSEMBLYClick here

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    REPLACE BACK-UP LIGHT SWITCH ASSEMBLYClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR