2006 Hyundai Santa Fe Heater Blower With No Speed Control

This specific HVAC system has no self-diagnostic abilities, but does control the blend doors and A/C while manually controlling the blower motor speed. This article is intended for the learning technicians that have an interest in diagnosing and testing a Hyundai HVAC...
Inside Relays

Inside Relays

A relay is an electro-mechanical device that is used to control a large current with a small current. A relay contains a coil and a mechanical spring-loaded switch.

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