AUDIO AND VISUAL SYSTEM, 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 auxiliary battery voltage input to the radio 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 auxiliary battery voltage drops

  • Radio receiver assembly

  • Harness or connector

WIRING DIAGRAM

B0049UIE15
*a from Auxiliary Battery
*b RADIO NO.1
*c Radio Receiver Assembly

CAUTION / NOTICE / HINT

Note


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

  • The following malfunctions may occur if a radio receiver assembly from another vehicle is installed to this vehicle. Therefore, when replacing the radio receiver assembly, be sure to replace it with new one.


    • Communication malfunction DTC is output

    • Does not operate normally

Tech Tips

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

Click here

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. B004BGG

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

      Click here

    2. Measure the auxiliary battery voltage.

      Standard voltage
      11 to 14 V

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  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.

      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 RECEIVER ASSEMBLY Click here

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


    1. B004A5ZC02
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      P43-4 (+B1) - Body ground Power Switch off 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR