NAVIGATION SYSTEM, Diagnostic DTC:B153A

DTC Code DTC Name
B153A GVIF Disconnected (from Extension Module to H/U)

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area
B153A GVIF Disconnected (from Extension Module to H/U) GVIF disconnected (from navigation ECU to radio receiver assembly)

  • Navigation ECU

  • Radio receiver assembly

WIRING DIAGRAM

B002JU9E04

CAUTION / NOTICE / HINT

Note

When replacing the radio receiver assembly or navigation ECU, always replace it with a new one.

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


  • A communication malfunction DTC may be stored.

  • The radio receiver assembly or navigation ECU may 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 Navigation System.

Click here

PROCEDURE


  1. 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.


      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

  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU)


    1. B002L2YC17
      *a

      Front view of wire harness connector

      (to Navigation ECU)
      *b

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the z19 navigation ECU connector.

    2. Disconnect the z18 radio receiver assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      z19-1 (GVO-) - z18-1 (GV2-) Always Below 1 Ω
      z19-2 (GVO+) - z18-2 (GV2+) Always Below 1 Ω
      z19-3 (GVG1) - z18-3 (GVG2) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  3. REPLACE NAVIGATION ECU


    1. Replace the Navigation ECU with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. 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.


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

    OK

    END (NAVIGATION ECU IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here