Kia Cee'd: Heater / PTC Heater (Diesel Engine) Repair procedures
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 5 times or 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.
|
| (6) |
Each PTC relay is operated with an interval of 3 seconds.
|
| (7) |
The logic test will automatically cancelled after 30 seconds.
In addition, it can be cancelled by doing the followings :
| •
|
Select A/C or intake (recirculation) switch
|
|
|
| 2. |
Cancellation
| • |
Select A/C or intake (recirculation) switch.
|
| • |
Turn the ignition switch OFF.
|
| • |
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 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 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, 2, 3 of PTC heater and ground
line.
|
| 4. |
If the measured resistance is not within specification, replace the
PTC heater with a new one.
|
| 1. |
Disconnect the negative (-) battery terminal.
|
| 2. |
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
|
| 3. |
Remove the driver side shower duct (A) after loosening the screw.
|
| 4. |
Disconnect the PTC heater connector (A).
|
| 5. |
Remove the PTC heater core (A) after loosening the PTC heater mounting
screws.
|
| 6. |
Install in the reverse order of removal.
|
Descriptionddd
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 e ...
Descriptionddd
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 e ...
Other information:
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For example
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PTC Heater (Diesel Engine) Description and operation
PTC Heater (Gasoline Engine) Description and operation