Hyundai Elantra: Crankcase Emission Control System / Repair procedures

Inspection

1.	After disconnecting the vapor hose from the PCV valve, remove the PCV valve.

2.	Reconnect the PCV valve to the vapor hose.

Run the engine at idle, then put a finger over the open end of the PCV valve and make sure that intake manifold vacuum can be felt.

•	The plunger inside the PCV valve will move back and forth at vacuum.

4.	If the vacuum is not felt inspect PCV operation, if operating correctly clean or replace the vapor hose.

Schematic Diagram ...

Operation Principle ...

Hyundai Elantra AD (2016-2020) Service Manual: Seat Belt Buckle Switch (BS) Description and Operation
Description • The SRSCM should detect the condition of seat belt buckles (BS) of the driver and passenger seats. • The SRSCM provides two pins to each side, in order to enter the condition of seat belt buckles (BS) of the driver and passenger seats. • The seat belt buckle ...