NAVIGATION SYSTEM, Diagnostic DTC:B1552, B158A

DTC Code DTC Name
B1552 Extension Module Malfunction
B158A Extension Module Noise Adjustment Malfunction

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1552 Extension Module Malfunction Internal malfunction of the navigation ECU Navigation ECU
B158A Extension Module Noise Adjustment Malfunction Screen noise adjustment fails Navigation ECU

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

    REPLACE NAVIGATION ECU Click here