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 degraded.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15CC

Backup Battery Failure

Mayday battery is degraded.

Mayday battery

CAUTION / NOTICE / HINT

Note:

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

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

PROCEDURE

  1. CHECK CONNECTION OF CONNECTOR

    1. Turn the ignition 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

      OK

      DTC B15CC and B15EC are not output.

    Result

    Proceed to

    DTC B15CC and B15EC are not output

    DTC B15CC and B15EC are output
    DTC B15CC and B15EC are not output

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    DTC B15CC and B15EC are output

    REPLACE MAYDAY BATTERY