Muffler Repair proceduresHyundai Elantra AD (2016-2020) Service Manual: Knock Sensor (KS) Description and Operation
Description
Knocking is a phenomenon characterized by undesirable
vibration and noise and can cause engine damage. Knock Sensor (KS) is
installed on the cylinder block and senses engine knocking.
When knocking occurs, the vibration from the cylinder block
is applied as pressure to the piez ...
Hyundai Elantra AD (2016-2020) Service Manual: PTC Heater Repair procedures
Inspection
Operating Logic Test (Manual only)
Inspect the PTC operation by confirmation logic as follows.
1.
Entering
(1)
Set the Floor mode and maximum heating position.
(2)
Turn off the blower switch.
(3)
Press the intake (recirculation) button 5 times or more.
(4)
\Indicators ...