This DTC is stored when the telematics transceiver detects one of the following:
The mobilephone battery voltage drops or the mobilephone battery malfunctions.
The mobilephone battery temperature is (temporarily) high.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15CC49 | Backup Battery Internal Electronic Failure | Mobilephone battery malfunction | ·
Mobilephone battery ·
Telematics transceiver |
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Telematics System.
When replacing the telematics transceiver, make sure to replace it with a new one.
Before replacing the telematics transceiver, refer to Service Bulletin.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and wait for 10 seconds or more.
Turn the GTS on.
Check for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Replace the mobilephone battery with a normal one and check if the same problem occurs again.
After replacing the mobilephone battery, perform initialization.
Clear the DTCs.
Recheck for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Replace the telematics transceiver with a new one.
| Proceed to |
|---|
| NEXT |
NEXT