AUDIO AND VISUAL SYSTEM(for 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 Code

DTC Detection Condition

Trouble Area

B158F

A video or audio signal is interrupted when the battery voltage drops.

Radio and display receiver assembly

WIRING DIAGRAM

E291232E08

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. E268487

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

    2. Check that the battery voltage.

      Standard voltage

      w/o Stop and Start System

      11 to 14 V

      w/ Stop and Start System

      9.5 to 14 V

      Tip:

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

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BATTERY)Click here

  2. CHECK FOR DTC

    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      OK

      No DTCs are output.

    USE SIMULATION METHOD TO CHECK

    (Click here)

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    (Click here)

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BATTERY)

    1. U124071E01

      Disconnect the radio and display receiver assembly connector.

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

      Standard Voltage

      w/o Stop and Start System

      Tester Connection

      Condition

      Specified Condition

      H107-4 (+B1) - Body ground

      Always

      11 to 14 V

      w/ Stop and Start System

      Tester Connection

      Condition

      Specified Condition

      H107-4 (+B1) - Body ground

      Always

      9.5 to 14 V
      Table 1. Text in Illustration

      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR