B15CC

CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B15CC: Backup Battery Failure
B15CC - Backup Battery Failure

DESCRIPTION

This DTC is stored when the DCM (Telematics Transceiver) detects one of the following:

* Open or short in the BUB (Back-Up Battery) circuit.

* The BUB (Back-Up Battery) voltage drops or the BUB (Back-Up Battery) malfunctions.

* The BUB (Back-Up Battery) temperature is temporarily high.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON and wait for 10 seconds.

(d) Perform "Health Check" and check for current DTCs Health Check.

Result





B -- CHECK FOR INTERMITTENT PROBLEMS How To Proceed With Troubleshooting
A -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (DCM - BUB)

(a) Disconnect the F39 DCM (Telematics Transceiver) connector.





(b) Disconnect the F40 BUB (Back-Up Battery) connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. REPLACE BUB (BACK-UP BATTERY)

(a) Replace the BUB (Back-Up Battery) with a normal one and check that the same problem does not occur again Removal.

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

NEXT -- Continue to next step.

4. CLEAR DTC

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

5. CHECK FOR DTC

(a) Check for DTCs and check that the same trouble does not occur again Health Check.

OK:

DTC B15CC is not output.

NG -- REPLACE DCM (TELEMATICS TRANSCEIVER)

OK -- END

6. REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (Telematics Transceiver) Removal.

NOTICE:
* The ignition switch must be off.
* Do not replace the DCM (Telematics Transceiver) with one from another vehicle.

NEXT -- PERFORM DCM ACTIVATION DCM Activation