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NAVIGATION SYSTEM, Diagnostic DTC:B158F

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DTC Code DTC Name
B158F AV Signal Stoppage (Low Battery Voltage)
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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
Table 1. *a from Auxiliary Battery *b RADIO NO. 1 *c Radio Receiver Assembly
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

  • When replacing the radio receiver assembly, always replace it with a new one.

    If a radio receiver assembly which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly may not operate normally.

Tip:

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

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PROCEDURE


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    CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. B004YQI

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

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    2. Measure the auxiliary 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

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    CHECK DTC


    1. Clear the DTCs.

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      1. Body Electrical > Navigation System > Clear DTCs


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

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      1. Body Electrical > Navigation System > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - BATTERY)


    1. Disconnect the G52 radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G52-4 (+B1) - Body ground Power switch off 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE RADIO RECEIVER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR