jessicakrueger1
FiveHundred solar sensor fault
Summary of the thread
A 2007 Ford FiveHundred was experiencing a solar sensor fault, leading to reduced heating output. The issue was suspected to be due to a defective cable or plug. After a scan confirmed the error, it was suggested to inspect the wiring harness and connections for damage or corrosion. Ultimately, the problem was resolved by replacing the faulty solar sensor, restoring normal heating function.
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4 comment(s)
jessicakrueger1 (community.author)
Yes, I visually inspected the wiring harness and connections and they seemed okay. I wasn't able to test the sensor's output directly. Do you know what the proper voltage or resistance readings should be for this sensor on a 2007 FiveHundred? Maybe the sensor itself has degraded and needs to be replaced.
susanmystic3
I understand your concern about the sensor's output. Direct voltage/resistance values can be difficult to obtain without specialized tools and manuals. Consulting a qualified technician is prudent. The error and low heating output strongly indicate a sensor malfunction or wiring issue needing professional diagnosis. I wouldn't expect costs to exceed 95€.
jessicakrueger1 (community.author)
Thanks for your advice! I took it to a workshop and it was indeed the solar sensor. The cost was around 95€ as you predicted. The error is now gone and heating output is normal again!
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FORD
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FIVEHUNDRED
susanmystic3
A solar sensor measures the sun's rays, which the climate control system uses to adjust heating and cooling. If there’s a fault, the system can struggle to regulate the temperature. Have you verified the wiring harness and connections to the sensor itself? Is there any visible damage or corrosion?