DTC B15CC-49: Backup Battery Internal Electronic Failure [10/2022 - ]: Procedure

Pre-procedure1

1. Turn the ignition switch to ON and wait for 10 seconds or more.

   Procedure1

2. Clear the DTCs.

   Body Electrical > Telematics > Clear DTCs 

   Result

   Proceed to
   NEXT

   Post-procedure1

3. None

Result: 

NEXT 

See step  2

1. Check for DTCs.

   Body Electrical > Telematics > Trouble Codes 

   Result

   Result	Proceed to
   B15CC-49 is not output	A
   B15CC-49 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 10/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ] 

Result: 

B 

See step  3

1. Replace the mobilephone battery with a normal one and check if the same problem occurs again.

   HINT: 

   Refer to REMOVAL [10/2020 - ]

   NOTE:

   • The mobilephone battery must not be replaced while an ACN call is in progress.

     Refer to ACN CALL END [10/2022 - ]

   • After replacing the mobilephone battery, perform initialization.

     Refer to INITIALIZATION [10/2022 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Clear the DTCs.

   Body Electrical > Telematics > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Recheck for DTCs and check that no DTCs are output.

   Body Electrical > Telematics > Trouble Codes 

   Result

   Result	Proceed to
   B15CC-49 is not output	A
   B15CC-49 is output	B

Result: 

A 

PERFORM INITIALIZATION. Refer to  INITIALIZATION [10/2022 - ] 

Result: 

B 

See step  6

1. Replace the DCM (telematics transceiver).

   Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

   NOTE:

   • The ignition switch must be off.
   • Do not exchange the DCM (telematics transceiver) with one from another vehicle.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM DCM ACTIVATION. Refer to  DCM ACTIVATION [10/2022 - ]