General InformationHyundai Tucson (NX4) 2022-2026 Service Manual: Active Air Flap
- Description
The AAF (Active Air Flap) is located between radiator grille and
radiator.The AAF controls the motor properly and then the air flaps
adjust air flow from the radiator grille.During high speed driving, it
will reduce the air resistance by closing the air flaps. This improves
...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Description and Operation
- OBD-II Review
1. Overview
The California Air Resources Board (CARB) began regulation of On Board
Diagnostics (OBD) for vehicles sold in California beginning with the
1988 model year. The first phase, OBD-I, required monitoring of the fuel
metering system, Exhaust Gas Recirculation (EGR) ...