Hyundai Kona: Heater / PTC Heater Repair procedures
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.
|
| (2) |
Turn off the blower switch.
|
| (3) |
Press the intake (recirculation) button 5 times or more.
|
| (4) |
\Indicators of intake and A/C button are continuously flashed
with an interval of 0.5 seconds.
|
| (5) |
Confirm the PTC operation by turn on the blower switch.
|
| (6) |
Each PTC relay is operated with an interval of 3 seconds.
|
| (7) |
The logic test will be automatically cancelled after 30
seconds.
In addition, it can be cancelled by followings;
| •
|
Select A/C or intake (recirculation) switch
|
|
|
| 2. |
Cancellation
| • |
Select A/C or intake (recirculation) switch.
|
| • |
Turn the ignition switch OFF.
|
| • |
The test is cancelled automatically after 30 seconds.
|
|
| 3. |
If the PTC is not operated, substitute with a known-good PTC heater
and check for proper operation.
If the problem is corrected, replace the PTC heater.
|
Operating Test
This test should be performed in the PTC ON conditions.
| 2. |
Check the current on wiring with a clamp multi tester.
Pattern
|
Current (A)
|
PTC 1 ON
|
0.1 - 33
|
PTC 2 ON
|
0.1 - 33
|
PTC 3 ON
|
0.1 - 33
|
Total
|
0.1 - 100
|
|
| 3. |
If the current is not specification, inspect related wiring.
|
Resistance Test
| 1. |
Turn the ignition switch OFF.
|
| 2. |
Disconnect the PTC heater connector.
|
| 3. |
Measure the resistance between terminal 1, 2, 3 of PTC heater and
ground line.
|
Resistance : 0.3 - 1.5 Ω
|
[Diesel]
Pin No.
|
Function
|
1
|
PTC 2
|
2
|
Gound
|
3
|
PTC 1
|
4
|
Gound
|
5
|
PTC 3
|
|
| 4. |
If the measured resistance is not specification, replace the PTC
heater with new one.
|
| 1. |
Disconnect the negative (-) battery terminal.
|
| 2. |
Remove the floor console side cover.
(Refer to Body - "Floor Console Assembly")
|
| 3. |
Disconnect the PTC heater connector (A).
|
| 4. |
Remove the PTC heater core (A) after loosening the PTC heater mounting
screws.
|
| 5. |
To install, reverse the removal procedure.
|
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 ...
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater and blower assembly.
(Refer ...
PTC Heater Description and operation
Evaporator Core Repair procedures