P2506 HYUNDAI – ECM/PCM Power Input Signal Range/Performance

P2506 HYUNDAI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P2506 HYUNDAI Possible Causes

Low battery voltage,Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM),ECM/PCM harness is open or shorted,ECM/PCM circuit poor electrical connection

P2506 HYUNDAI Description

When the ignition switch is turned “ON”, the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. In case that the ignition switch is turned “OFF”, the ECM/PCM is supplied with power through the battery power input line to control the basic operation of the vehicle. The ECM/PCM set the OBDII code when the ECM/PCM Power Input is out of factory specifications.