Test C: The DC/DC Converter Does Not Operate Correctly

PINPOINT TEST C: THE DC/DC CONVERTER DOES NOT OPERATE CORRECTLY

C1 - C2:

C3 - C4:

C5 - C6:

C7:

Normal Operation
The DC/DC converter is a liquid-cooled component that converts high voltage (216-397 volts) DC power to low voltage (12 volts) DC power while maintaining electrical isolation between the 2 DC power systems. The converter steps down the high voltage to 12 volts, providing power to the vehicle low voltage battery system. The powertrain control module (PCM) controls the operation of the DC/DC converter through an enable input from the PCM to the DC/DC converter.

Possible Causes
- 12 volt battery
- DC/DC converter
- 12- volt battery cables