Toyota Corolla Cross: Backup Battery Internal Electronic Failure (B15CC49)
DESCRIPTION
This DTC is stored when the DCM (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 |
|
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Safety Connect System.
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PROCEDURE
|
1. |
CHECK DTC |
(a) Turn the ignition switch to ON and wait for 10 seconds or more.
(b) Clear the DTCs.
Body Electrical > Telematics > Clear DTCs(c) Check for DTCs and check that no DTCs are output.
Body Electrical > Telematics > Trouble Codes| OK | .gif)
|
USE SIMULATION METHOD TO CHECK |
|
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|
2. |
CHECK MOBILEPHONE BATTERY |
(a) Replace the mobilephone battery with a normal one and check if the same problem occurs again.
NOTICE:
- The mobilephone battery must not be replaced while an ACN call is in
progress.
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- After replacing the mobilephone battery, perform initialization.
Click here
(b) Clear the DTCs.
Body Electrical > Telematics > Clear DTCs(c) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Telematics > Trouble CodesOK:
No DTCs are output.
| OK |
|
PERFORM INITIALIZATION |
|
|
3. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
Click here
NOTICE:
- The ignition switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT |
|
PERFORM DCM ACTIVATION |
