REAR VIEW MONITOR SYSTEM Reverse Signal Circuit

DTC Code DTC Name
Reverse Signal Circuit

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.

  • *1: except Manual Transaxle

  • *2: for Manual Transaxle

WIRING DIAGRAM

E227687E32
E231101E08

PROCEDURE

  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)

    1. E354137

      Enter the "Function Check/Setting I" mode and select "Vehicle Signal" (Click here).

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

      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.

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. U123652E01

      Disconnect the H105 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

      H105-2 (REV) - Body ground

      Ignition switch ON, shift lever in R

      7.5 to 14 V

      H105-2 (REV) - Body ground

      Ignition switch ON, shift lever not in R

      Below 1 V
      Table 1. Text in Illustration

      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)
      Table 2. Result

      Result

      Proceed to

      OK

      A

      NG (except Manual Transaxle)

      B

      NG (for Manual Transaxle, except 1WW Engine)

      C

      NG (for Manual Transaxle, for 1WW Engine)

      D

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    (Click here)

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

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

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

    1. Disconnect the H105 radio and display receiver assembly connector.

    2. Disconnect the C23 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

      H105-2 (REV) - C23-2 (RL)

      Always

      Below 1 Ω

      H105-2 (REV) - Body ground

      Always

      10 kΩ or higher

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the H105 radio and display receiver assembly connector.

    2. Disconnect the C7 back-up light switch assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H105-2 (REV) - C7-1 (RL)

      Always

      Below 1 Ω

      H105-2 (REV) - Body ground

      Always

      10 kΩ or higher
      Table 3. Result

      Result

      Proceed to

      OK (for EC61)

      A

      OK (for EC62)

      B

      OK (for EA65)

      C

      NG

      D

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    (Click here)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    (Click here)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the H105 radio and display receiver assembly connector.

    2. Disconnect the D4 back-up light switch assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H105-2 (REV) - D4-1 (RL)

      Always

      Below 1 Ω

      H105-2 (REV) - Body ground

      Always

      10 kΩ or higher

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR