Kia Forte: PTC Heater Inspection
Operating Logic Test (Manual only)
Inspect the PTC operation with the confirmation logic below :
1. |
Entering
(1) |
Set the Floor mode and maximum heating position.
|
(2) |
Turn off the blower switch.
|
(3) |
Press the intake(recirculation) button continually 5 seconds
more.
|
(4) |
The intake and A/C button indicator will continuously
flash with an interval of 0.5 seconds.
|
(5) |
Confirm the PTC operation by turning on the blower switch
after 3 seconds.
|
(6) |
The logic test will automatically cancelled after 30 seconds.
In addition, it can be cancelled by doing the followings
:
A. |
Select A/C or intake (recirculation) switch
|
|
|
2. |
Cancellation
A. |
Select A/C or intake (recirculation) switch.
|
B. |
Turn the ignition switch OFF.
|
C. |
The test cancels automatically after 30 seconds.
|
|
3. |
If the PTC does not operate, 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 the wiring with a clamp multi tester.
Pattern
|
Current (A)
|
PTC ON
|
12 ~ 32
|
Total
|
12 ~ 32
|
|
3. |
If the current is not within specification, inspect the related
wiring.
|
Resistance Test
1. |
Turn the ignition switch OFF.
|
2. |
Disconnect the PTC heater connector.
|
3. |
Measure the resistance between terminal 1 and PTC ON (+) of PTC
heater and ground line.
|
4. |
If the measured resistance is not within specification, replace
the PTC heater with a new one.
|
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
hea ...
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel" ...
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