BLOCKING SYSTEM, Diagnostic DTC:B15CC

DTC Code DTC Name
B15CC Backup Battery Failure

DESCRIPTION

This DTC is stored when the telephone transceiver assembly detects that the mayday battery is disconnected.

DTC Code DTC Detection Condition Trouble Area
B15CC Mayday battery disconnected (open circuit). Mayday battery

INSPECTION PROCEDURE

Note


  • When replacing the mayday battery, refer to the Service Bulletin.

  • When the mayday battery is replaced, registration in the telephone transceiver is necessary. For details, refer to the Service Bulletin.

PROCEDURE


  1. CHECK CONNECTION OF CONNECTOR


    1. Turn the engine switch off.

    2. Check that the connectors are properly connected to the mayday battery.

      OK
      Connectors are properly connected.

    NG

    CONNECT CONNECTOR CORRECTLY

    OK

  2. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  3. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B15CC and B15EC are not output.

    NG

    REPLACE MAYDAY BATTERY

    OK

    USE SIMULATION METHOD TO CHECK Click here