SAFETY CONNECT SYSTEM, Diagnostic DTC:B15CC

DTC Code DTC Name
B15CC Backup Battery Failure

DESCRIPTION

This DTC is set when the DCM (Telematics Transceiver) detects one of the following:


DTC No. DTC Detection Condition Trouble Area
B15CC BUB (Back-Up Battery) malfunction

  • Wire harness or connector

  • BUB (Back-Up Battery)

  • DCM (Telematics Transceiver)

WIRING DIAGRAM

A01HYMWE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Turn the engine switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the engine switch on (IG) and wait for 10 seconds.

    4. Turn the Techstream on.

    5. Perform "Health Check" and check for current DTCs Click here.

      Result
      Result Proceed to
      DTC B15CC is output A
      DTC B15CC is not output B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BUB (BACK-UP BATTERY))


    1. Disconnect the I135 DCM (Telematics Transceiver) connector.

    2. Disconnect the I136 BUB (Back-Up Battery) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I135-30 (BBI+) - I136-1 (BBO+) Always Below 1 Ω
      I135-13 (BBI-) - I136-5 (BBO-) Always Below 1 Ω
      I135-20 (CTR1) - I136-3 (BTR1) Always Below 1 Ω
      I135-21 (CTR2) - I136-4 (BTR2) Always Below 1 Ω
      I135-30 (BBI+) - Body ground Always 10 kΩ or higher
      I135-13 (BBI-) - Body ground Always 10 kΩ or higher
      I135-20 (CTR1) - Body ground Always 10 kΩ or higher
      I135-21 (CTR2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE BUB (BACK-UP BATTERY)


    1. Replace the BUB (Back-Up Battery) with a known good one and check if the same problem occurs again Click here.

      Note

      The BUB (Back-Up Battery) must not be replaced while an ACN call is in progress.


    NEXT

  4. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  5. RECHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTC is output.

    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

    END

  6. REPLACE DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (Telematics Transceiver) Click here.

      Note


      • The engine switch must be off.

      • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.


    NEXT

    PERFORM DCM ACTIVATION Click here