AUDIO AND VISUAL SYSTEM(except Sedan Radio and Display Type), Diagnostic DTC:B158F

DTC Code DTC Name
B158F AV Signal Stoppage (Low Battery Voltage)

DESCRIPTION

This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio and display receiver assembly dropping temporarily.

DTC No. Detection Item DTC Detection Condition Trouble Area
B158F AV Signal Stoppage (Low Battery Voltage) A video or audio signal is interrupted when the battery voltage drops

  • Radio and display receiver assembly

  • Harness or connector

  • Stop and start system*

WIRING DIAGRAM

A01TCIBE01

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. A01TBKZ

      Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check.

      Click here

    2. Measure the battery voltage.

      Standard Voltage
      11 to 14 V (w/o Stop and Start System)
      9.5 to 14 V (w/ Stop and Start System)

      Tech Tips

      This display is updated once per second.

      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    B

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE) Click here

    C

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

    A

  2. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

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


    1. Disconnect the E1 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
      E1-4 (+B1) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. Disconnect the E1 radio and display receiver assembly connector.

    2. Disconnect the E24 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
      E1-4 (+B1) - E24-2 (BO1) Always Below 1 Ω
      E1-4 (+B1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the E1 radio and display receiver assembly connector.

    2. Reconnect the E24 engine stop and start ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E1-4 (+B1) - Body ground Always 9.5 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    GO TO STOP AND START SYSTEM Click here