Original Video with Mohammed’s question;
"Fix" Stuck HVAC Controls (Crown Victoria);    • Crown Victoria - "Fix" Stuck HVAC Con...  
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If your Ford vehicle has the fancy electronic HVAC control head, and you’re experiencing a malfunction, you may want to start your diagnosis by retrieving possible error codes that may be stored.
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How to enter EATC (Electronic Automatic Temperature Control) Self Test Mode;
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0:00 Start
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1:55 Step 1. Key On, Engine Off
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2:40 Step 2. Press Off
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2:50 Step 3. Press Off And Floor Simultaneously, Then Automatic, Wait 60 Seconds
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3:50 Step 4. Write Down Any Error Codes
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4:10 Step 5. Press Defrost To End Self Test
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The Self Test may take up to 30 seconds to complete. You may hear audible noises coming from the vents, or under the dash. This may be the various blend doors, and or motor actuators performing a full sweep calibration. Take note of any error codes. 888 usually means the self test has not detected any malfunction. After the test is complete, press DEF to end the test.
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Possible Error Codes;
022 - blend door short (intermittent)
024 - blend door fault (during test)
025 - blend door fault (intermittent)
030 - inside temp control sensor shorted (during test)
031 - inside temp control sensor open (during test)
040 - ambient temp sensor short (during test)
041 - ambient temp sensor open (during test)
042 - ambient temp sensor short (intermittent)
043 - ambient temp sensor open (intermittent)
049 - Temperature Blend Door Failure Or Short
050 - sunlight sensor short (during test)
051 - In-Vehicle Temperature Sensor Open
052 - sunlight sensor short (intermittent)
053 - In-Vehicle Temperature Sensor Short To Ground
055 - Ambient Temperature Sensor Open
057 - Ambient Temperature Sensor Short To Ground
059 - Solar Radiation Sensor Circuit Open
061 - Solar Radiation Sensor Short To Ground
115 - intermittent engine coolant temp signal
125 - intermittent vehicle speed signal
888 - test pass/complete
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For further diagnosis consult the appropriate service / repair manual. By the way I have a video on how to obtain free online automotive service / repair manuals for any car. You can watch the video here to learn more;    • Free Auto Repair Service Manuals (nee...  
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FordTeckMakuLoco’s Video;    • Ford HVAC System Stuck on Defrost: EA...  
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Disclosure;
My YouTube Channel is not monetized. I am NOT an Amazon Affiliate, I make no commissions of any kind. I make these videos for fun. This channel is dedicated to owners of Crown Vics, Grand Marquis, Lincoln Town Cars, and Mercury Marauders.
I make 3 types of videos;
1.) DIY tips on maintenance, repairs, and modifications like LED lighting.
2.) Product reviews of Panther Platform related parts & accessories.
3.) Q&A videos answering questions about Panther Platform Cars.
Email questions, or comments to: [email protected]
(Rev. 2/6/21)
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