P0D0A – Battery Charging System Positive Contactor Control Circuit

P0D0A Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0D0A Possible Causes

Faulty Battery Energy Control Module,Battery Energy Control Module harness is open or shorted,Battery Energy Control Module circuit poor electrical connection

P0D0A Description

The hybrid/EV battery contains 5 high voltage contactors and 2 transistors. The high voltage contactors and transistors allow the high voltage DC batteries to be connected to the vehicle or safely contain the high voltage DC within the hybrid/EV battery assembly. The 5 high voltage contactors consist of a main positive high voltage contactor, main negative high voltage contactor, charge positive high voltage contactor, charge negative high voltage contactor and multi-function high voltage contactor. The 2 transistors consist of the precharge transistor and heater transistor. The contactors and transistors close and open in a specific sequence controlled by the hybrid/EV powertrain control module 2. The hybrid/EV powertrain control module 2 supplies voltage to the control circuit for the high voltage contactors/transistors. Ground is provided through the case ground.