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

DTC Code DTC Name
Reverse Signal Circuit

DESCRIPTION

The radio and display receiver assembly receives a reverse signal from the back-up light switch assembly.

WIRING DIAGRAM

E226161E39

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)

    1. Disconnect the E32 radio and display receiver assembly connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      E32-2 (REV) - Body ground

      Ignition switch ON

      Shift lever in R

      11 to 14 V

      E32-2 (REV) - Body ground

      Ignition switch ON

      Shift lever in any position other than R

      Below 1 V

      Result

      Proceed to

      OK

      NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

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

    1. Disconnect the E32 radio and display receiver assembly connector.

    2. Disconnect the B19 back-up light switch assembly connector (for 1KR-FE).

      Disconnect the C5 back-up light switch assembly connector (for 1PP).

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

      Standard Resistance

      Table 1. for 1KR-FE

      Tester Connection

      Condition

      Specified Condition

      E32-2 (REV) - B19-1

      Always

      Below 1 Ω

      E32-2 (REV) - Body ground

      Always

      Below 5 kΩ
      Table 2. for 1PP

      Tester Connection

      Condition

      Specified Condition

      E32-2 (REV) - C5-2

      Always

      Below 1 Ω

      E32-2 (REV) - Body ground

      Always

      Below 5 kΩ

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Disconnect the B19 back-up light switch assembly connector (for 1KR-FE).

      Disconnect the C5 back-up light switch assembly connector (for 1PP).

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

      Standard Voltage

      Table 3. for 1KR-FE

      Tester Connection

      Condition

      Specified Condition

      B19-2 - Body ground

      Ignition switch ON

      11 to 14 V
      Table 4. for 1PP

      Tester Connection

      Condition

      Specified Condition

      C5-1 - Body ground

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    for C550:Click here

    for C551:Click here

    for MA:Click here

    for C553A:Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR