Kia Sportage: 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.
|
| 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 [LH](A).
|
| 3. |
Disconnect the PTC heater connector (A).
|
| 4. |
Remove the PTC heater core (A) after loosening the mounting screws.
|
| 5. |
Install in thje reverse order of removal.
|
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 ...
Description
The heater unit includes mode control actuator and temperature control actuator.
Located in the heater unit, the temperature control actuator regulates the temperatur ...
Other information:
Replacement
1.
Remove the condenser.
2.
Remove the cap (B) from the bottom of the condenser using an L wrench
(A).
Tightening torque :
9.8 - 14.7 N.m (1.0 - 1.5 kgf.m, 7.2 - 10.8 lb-ft)
...
If the following conditions occur while Active ECO is operating, the system operation
is limited even though there is no change in the ECO indicator.
When the coolant temperature is low: The system will be limited until
engine performance becomes normal.
When driving up a hill: The system ...
PTC Heater Description and operation
Temperature Control Actuator Description and operation