Hyundai Santa Fe: Heater / PTC Heater (Diesel only). Description and operation
Hyundai Santa Fe (TM) 2019-2024 Service Manual / Heating,Ventilation And Air Conditioning / Heater / PTC Heater (Diesel only). Description and operation
| Description |
The PTC (Positive Temperature Coefficient) heater is installed at the exit or
the backside of the 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 the heater controller
operates PTC relay 2 with an interval of 15 seconds.
Operating Condition
PTC heater operates according to the following conditions :
| • |
Battery voltage : 13V or above
|
| • |
Engine : Running
|
| • |
Ambient temperature and coolant temperature
|
Evaporator Core. Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater and blower assembly...
PTC Heater (Diesel only). Repair procedures
Inspection
Operating Logic Test (Manual only)
Inspect the PTC operation with the confirmation logic below :
1.
Entering
(1)
Set the mode to FLOOR...
Other information:
Hyundai Santa Fe (TM) 2019-2024 Owner's Manual: Emission control system
The emission control system of your vehicle is covered by a written limited warranty. Please see the warranty information contained in the Service Passport in your vehicle. Your vehicle is equipped with an emission control system to meet all applicable emission regulations...
Hyundai Santa Fe (TM) 2019-2024 Service Manual: Special service tools
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Power adjustment
The front seat can be adjusted by using the control switches located on the outside of the seat cushion. Before driving, adjust the seat to the proper position so that you can easily control the steering wheel, foot pedals and controls on the instrument panel.
WARNING
NEVER allow children in the vehicle unattended. The power seats are operable when the vehicle is turned off.
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