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

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

DESCRIPTION

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

WIRING DIAGRAM

A01V8HUE02

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. A01V9Z4

      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
      11 to 14 V

      Tech Tips

      This display is updated once per second.

      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  2. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Check for DTCs.

      Click here


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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

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


    1. A01V6XNC57
      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

      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
      G141-4 (+B1) - Body ground Always 11 to 14 V
      w/Stop and Start System
      Tester Connection Condition Specified Condition
      G141-4 (+B1) - Body ground Always 10.5 to 14 V
      Result
      Proceed to
      OK
      NG (w/o Stop and Start System)
      NG (w/ Stop and Start System)

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG (w/o Stop and Start System)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    NG (w/ Stop and Start System)

    GO TO STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) for 3ZR-FAE: Click here
    GO TO STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) for 2WW: Click here