AUDIO AND VISUAL SYSTEM(for Radio and Display Type) Radio Receiver Power Source Circuit

DTC Code DTC Name
Radio Receiver Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the radio and display receiver assembly.

WIRING DIAGRAM

E287055E02

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. CONFIRM MODEL

    1. Choose the model to be inspected.

      Result

      Result

      Proceed to

      w/o Stop and Start System

      A

      w/ Stop and Start System

      B
    B

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ENGINE STOP AND START ECU)Click here

    A

  2. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE)

    1. Disconnect the E31 and E32 radio and display receiver assembly connectors.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E31-7 (GND1) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      E31-4 (+B1) - E31-7 (GND1)

      Always

      11 to 14 V

      E31-3 (ACC1) - E31-7 (GND1)

      Ignition switch ACC

      11 to 14 V

      E32-1 (IG) - E31-7 (GND1)

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ENGINE STOP AND START ECU)

    1. Disconnect the E31 radio and display receiver assembly connector.

    2. Disconnect the A25 engine stop and start ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E31-4 (+B1) - A25-2 (BO1)

      Always

      Below 1 Ω

      E31-3 (ACC1) - A25-3 (ACO)

      Always

      Below 1 Ω

      E31-4 (+B1) - Body ground

      Always

      10 kΩ or higher

      E31-3 (ACC1) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE)

    1. Disconnect the E31 and E32 radio and display receiver assembly connectors.

    2. Reconnect the A25 engine stop and start ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E31-7 (GND1) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      E31-4 (+B1) - E31-7 (GND1)

      Always

      9.5 to 14 V

      E31-3 (ACC1) - E31-7 (GND1)

      Ignition switch ACC

      9.5 to 14 V

      E32-1 (IG) - E31-7 (GND1)

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    GO TO STOP AND START SYSTEM

    Click here