Hyundai Genesis (DH): Engine Control System / Heated Oxygen Sensor (HO2S) Troubleshooting

Other information:

Hyundai Genesis (DH) 2013-2016 Service Manual: Description and Operation

Description System Overview The System offers the following features: - Changing the state of engine ignition and power by using the start button. - Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

Hyundai Genesis (DH) 2013-2016 Service Manual: Mode Control Actuator Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4. Verify that the mode control actuator operates to the vent mode when connected in reverse.