Hyundai Venue: Heater / PTC Heater. Description and operation

Hyundai Venue (QX) (2020-2023) Service Manual / Heating, Ventilation and Air Conditioning / Heater / PTC Heater. Description and operation

Description
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.
Battery voltage: 12.4V or above
Engine : Running
Ambient temperature and coolant temperature
Ambient
Temperature
Coolant
Temperature
PTC
Operation
Below -20°C
(-4°F)
Below 75°C (167°F)
ON
10°C (50°F)
Below 65°C (149°F)
ON
12°C (53.6°F) or above
-
OFF
-
80°C (176°F) or above
OFF

Hyundai Venue. PTC Heater. Description and operation

    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) (2020-2023) Service Manual: Repair procedures


    Removal    • Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health. • Avoid breathing dust particles...

    Hyundai Venue (QX) (2020-2023) Service Manual: General information


    General Service Information Protection of the Vehicle Always be sure to cover fenders, seats, and floor areas prior to beginning work.    • The support rod must be inserted into the hole near the edge of the hood whenever you inspect the engine compartment to prevent the hood from falling and causing possible injury...

    Categories

    Remote Key

    Hyundai Venue. Remote Key

    Your HYUNDAI uses a remote key, which you can use to lock or unlock the driver and passenger doors or the rear liftgate.

    (1) Door Lock
    (2) Door Unlock
    (3) Panic

    Locking Your Vehicle

    To lock your vehicle:

    1. Make sure all doors, the engine hood and the liftgate are closed.

    read more


     
    Copyright © 2023 www.hvenueqx.com