DTC B15CC: Backup Battery Failure [12/2013 - ]: 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. Perform "Health Check" and check for current DTCs.

   Refer to HEALTH CHECK [12/2013 - ]

   Result

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

Result:  2

B 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016]  Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

Result:  1

A 

See step  2

1. Disconnect the F35 DCM (Telematics Transceiver) connector.
2. Disconnect the F86 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
   F35-30 (BBI+) - F86-1 (BBO+)	Always	Below 1 Ω
   F35-30 (BBI+) or F86-1 (BBO+) - Body ground	Always	10 kΩ or higher
   F35-13 (BBI-) - F86-5 (BBO-)	Always	Below 1 Ω
   F35-13 (BBI-) or F86-5 (BBO-) - Body ground	Always	10 kΩ or higher
   F35-20 (CTR1) - F86-3 (BTR1)	Always	Below 1 Ω
   F35-20 (CTR1) or F86-3 (BTR1) - Body ground	Always	10 kΩ or higher
   F35-21 (CTR2) - F86-4 (BTR2)	Always	Below 1 Ω
   F35-21 (CTR2) or F86-4 (BTR2) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  3

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

   Refer to REMOVAL [12/2013 - ]

   NOTE:

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

   Refer to ACN CALL END [12/2013 - ]

NEXT 

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2013 - ]

NEXT 

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

   Refer to DTC CHECK / CLEAR [12/2013 - ]

   OK

   No DTC is output.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END 

Result:  2

NG 

See step  6

1. Replace the DCM (Telematics Transceiver).

   Refer to REMOVAL [12/2013 - 11/2016] Refer to REMOVAL [11/2016 - ]

   NOTE:

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

NEXT 

1. Perform "PRL UPDATE".

   Refer to PRL UPDATE [12/2013 - ]

NEXT 

PERFORM DCM ACTIVATION. Refer to  DCM ACTIVATION [12/2013 - ]