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HVAC codes - troubleshooting

Old Dec 15, 2010 | 07:20 PM
  #1  
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Default HVAC codes - troubleshooting

VAGcom scan shows the HVAC codes below. Any suggestions where and how to start with the troubleshooting/fix?

Address 08: Auto HVAC Labels: 8L0-820-043-2D.lbl
Part No: 8L0 820 043 D
Component: A4 KLIMAVOLLAUTOMAT_D75
Coding: 04162
Shop #: WSC 06325
VCID: 29570979F97F

4 Faults Found:
01297 - Sensor for Vent Temperature; Footwell (G192)
30-00 - Open or Short to Plus
01296 - Sensor for Vent Temperature; Center (G191)
30-00 - Open or Short to Plus
01206 - Signal for Duration of Ignition Off Time
27-10 - Implausible Signal - Intermittent
01582 - Signal for Coolant Temperature
30-00 - Open or Short to Plus
 
Old Dec 15, 2010 | 08:51 PM
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I would clear them and see what ones come back. What are your symptoms?
 
Old Dec 16, 2010 | 06:21 AM
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Originally Posted by Dallas09
I would clear them and see what ones come back. What are your symptoms?
Cleared DTCs several times, always come back.'
One symptom: no cold air (AC not working).
Haven't had a chance to monitor other functions (is it holding a set temperature, etc.)
 
Old Dec 16, 2010 | 08:41 AM
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Is any of the codes pointing towards:
- low pressure in AC
- leak in condenser
- bad compressor clutch
- bad compressor

Is VAGcom showing codes if any of the above is present?

Just want to find out if the issue is more controls/electrical/sensors rather than mechancial (condenser, leaks, compressor).
 
Old Dec 16, 2010 | 04:59 PM
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What happens when you try to turn on your A/C, do any other codes come up, does the snowflake stay on or shut off right away? As far as I know those codes you listed wouldnt cause the A/C to stop working. Actually if your A/C was low on pressure, you should get a code for the switch.
 
Old Dec 28, 2022 | 04:44 PM
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спасибо, интересное чтение
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Old Jan 23, 2023 | 05:54 AM
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Спасибо, +
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