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 No. Detection Item DTC Detection Condition Trouble Area
B15CC Backup Battery Failure Mayday battery disconnected (open circuit). Mayday battery

CAUTION / NOTICE / HINT

Note


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

  • When the mayday battery is replaced, perform the necessary registration procedures for the telephone transceiver assembly. For details, refer to 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.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT CONNECTOR CORRECTLY

    OK

  2. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Telematics > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Telematics > Trouble Codes
      OK
      DTCs B15CC and B15EC are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE MAYDAY BATTERY