DTC B15CC: Backup Battery Failure [06/2015 - 01/2018]: Description

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

Open or short in the mayday battery (back-up battery) circuit.
The mayday battery (back-up battery) voltage drops or the mayday battery (back-up battery) malfunctions.
The mayday battery (back-up battery) temperature is (temporarily) high.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15CC	Backup Battery Failure	Mayday battery (back-up battery) malfunction	Harness or connector Mayday battery (back-up battery) DCM (Telematics Transceiver)