DTC B15CC: Backup Battery Failure [03/2017 - 09/2019]: Procedure

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. Clear the DTCs.

   Body Electrical > Telematics > Clear DTCs 

6. Recheck for DTCs.

   Body Electrical > Telematics > Trouble Codes 

   Result

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

Result: 

B 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 06/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2017 - 08/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2018 - 09/2019] 

Result: 

A 

See step  2

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

   Refer to REMOVAL [03/2017 - 09/2019]

   NOTE:

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

   Refer to ACN CALL END [03/2017 - 09/2019]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [03/2017 - 09/2019]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Recheck for DTCs and check if the same trouble occurs again.

   Refer to DTC CHECK / CLEAR [03/2017 - 09/2019]

   OK

   No DTC is output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  5

1. Replace the DCM (Telematics Transceiver).

   Refer to REMOVAL [03/2017 - 09/2019]

   NOTE:

   • The engine switch must be off.
   • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM DCM ACTIVATION. Refer to  DCM ACTIVATION [03/2017 - 09/2019]