Wrangler Hybrid Solar Sensor Causes Heat System Failure

Last month I dealt with a similar sunlight sensor fault in my 2018 Jeep Cherokee Hybrid. The temperature sensor system was showing inconsistent readings, affecting the automatic climate control performance. The fault detection system revealed a wiring harness issue where the cable connection to the sunlight sensor had deteriorated. This caused intermittent communication between the sensor and the climate control module. The repair required replacing the wiring harness and recalibrating the sensor system. This is a known issue in some Jeep models. The sunlight sensor malfunction often appears first as a climate control problem before triggering error codes. Its quite serious as it affects both the heating system efficiency and the auto-dimming features. The fix involved: Complete diagnostic scan, Removal of the overhead console, Replacement of the wiring harness, Sensor calibration, System reset Labor time was about 3 hours. Recommend getting it checked soon as continued operation with faulty sensors can lead to increased strain on the HVAC system. The car sensor replacement itself is a straightforward job, but proper calibration is crucial for optimal performance.

Thanks for sharing your experience with the daylight sensor repair. Interesting to hear about the wiring harness being the root cause. Ive been having similar issues with my 2021 Wrangler and your detailed explanation helps a lot. Could you share how much you ended up paying for the complete fix? Also wondering if youve had any recurring issues since the repair was done? My fault detection system is showing similar symptoms and Id like to budget accordingly before heading to the shop.

Got my Jeep back from the shop last week and can confirm the solar sensor issue is completely resolved. The total repair cost was 95 Euro, which covered fixing a faulty cable connection at the sensor plug. Much simpler and cheaper than I initially expected. The automotive sensor is now working perfectly with the climate control system. No more erratic temperature readings or heating issues. The mechanic explained that the daylight sensor often has connection problems rather than complete sensor failure, which explains the lower repair cost compared to a full replacement. Since the repair, the heating system has been working flawlessly and all error codes have cleared. The sensor calibration was included in the service, and the climate control is now responding correctly to changing light conditions. Definitely worth getting it checked out, especially since the fix might be simpler than expected. Your fault detection symptoms sound identical to what I experienced, so you might be looking at a similar repair cost if its the same connection issue.

Following up to share my repair experience. After seeing the responses here, I took my Wrangler to a mechanic who specializes in automotive sensor repairs. The fault detection system was spot on, it turned out to be a connection issue at the daylight sensor, just like others mentioned. Total repair cost came to 120 Euro, slightly higher than expected but included a thorough sensor calibration and system check. The mechanic found corroded wiring near the sensor connection point, which explained the inconsistent heating performance. The repair took about 2 hours and included: Wiring repair, Sensor connection cleanup, Full system diagnostic, Calibration of the sunlight sensor Been driving for a week now and the heating works perfectly. The error codes are gone and the climate control responds properly to changing conditions. Definitely worth fixing rather than letting it get worse. Going to a specialized shop made a big difference compared to my previous repair experience. They knew exactly what to look for and fixed it right the first time.