| Description and Operation |
| Overview |

| Operation Principle |

| Electric Thermostat Structure |

Water pump Troubleshooting
Electric Thermostat (ECT) Schematic DiagramsHyundai Elantra AD (2016-2020) Service Manual: Variable Intake Solenoid (VIS) Valve Description and Operation
Description
Variable Intake manifold Solenoid (VIS) valve is installed on
the intake manifold. The VIS valve controls the vacuum modulator which
activates a valve in the intake manifold. The ECM opens or closes this
valve according to engine condition (Refer to below table).
Engine cond ...
Hyundai Elantra AD (2016-2020) Service Manual: Cluster Ionizer Description and Operation
Description
The cluster ionizer makes disinfection and decomposition of
bad smell from the air-conditioner or inflow air. And it cleans the
inside air of a vehicle.
When the ignition switch is ON, the ionizer runs "CLEAN" mode and then "ION" mode, switching between both modes.
In the “CL ...