NAVIGATION SYSTEM(for SD), 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 navigation 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.

  • Navigation receiver assembly

  • Harness or connector

WIRING DIAGRAM

E268488E28

CAUTION / NOTICE / HINT

Note:

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

  • Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

    Click hereClick hereClick hereClick hereClick here

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 hereClick hereClick here

    2. Check the battery voltage.

      Standard voltage

      11 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.

    Result

    Proceed to

    OK

    NG
    NG

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

    OK

  2. CHECK FOR DTC

    1. Clear the DTCs.

      Click hereClick hereClick here

      Body Electrical > Navigation System > Clear DTCs

    2. Check for DTCs.

      Click hereClick hereClick here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick hereClick here

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY

    Click hereClick here

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

    1. E277492C12

      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

      Disconnect the navigation receiver assembly connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      G137-4 (+B1) - Body ground

      Always

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY

    Click hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR