Hyundai Venue: Heater / PTC Heater. Description and operation

The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core.

The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engine. The electric heater heats up the interior by directly heating the air that passes through the heater. The name itself implies that the element has a proportional resistance change sensitive to temperature.

Operation Principle

ECM outputs a PTC ON signal and operates PTC relay 1. Then heater controller operates PTC relay 2 and PTC relay 3 with an interval of 15 seconds.

However, PTC relay 3 can be operated while battery voltage is above 12.4V.

Operating Condition

PTC heater operates according to the following conditions.

Heater Core. Repair procedures

Replacement 1. Remove the heater unit assembly. (Refer to Heater - "Heater Unit") 2...

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...

Other information:

Hyundai Venue (QX) (2020-2025) Owners Manual: High Mounted Stop Lamp & License Plate Light Bulb Replacement

High Mounted Stop Lamp Replacement 1. Open the liftgate. 2. Remove the lamp cover from the lamp assembly with a cross-tip screwdriver. 3. Remove the socket from the assembly by turning the socket counterclockwise until the tabs on the socket align with the slots on the assembly...

Hyundai Venue (QX) (2020-2025) Owners Manual: Automatic Door Lock and Unlock Features

Your vehicle is equipped with features that will automatically lock or unlock your vehicle based on settings you select in the LCD cluster display. Auto LOCK - Enable on Speed When this feature is set in the LCD cluster display, all the doors will be locked automatically when the vehicle exceeds 9 mph (15 kph)...