matthias_mayer1

Trax Solar Sensor Fault Low Heat

Alright, experts, I'm stumped. My 2017 Chevrolet Trax diesel is throwing a solar sensor fault (B1004). Mileage is at 62197 km. The climate control is acting up, barely any heat output. I suspect the solar sensor, given the error, but I've visually checked the wiring and it all looks fine. Anyone else experienced this? I am leaning toward replacing it, but wanted to avoid throwing money at it if its something simpler.

The conversation revolves around a 2017 Chevrolet Trax diesel experiencing a solar sensor fault (B1004) and low heat output from the climate control. The initial suspicion was a faulty solar sensor, but the wiring appeared intact. Suggestions included recalibrating the sensor and inspecting the connector for hidden corrosion or damage. Ultimately, a workshop visit revealed a defective cable/plug connector, which was replaced, resolving the issue.

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4 comment(s)

Low heat and a solar sensor fault code do point in that direction. Have you tried recalibrating the sensor through your diagnostics tool? Also, double-check the connector for corrosion or damage to the pins themselves. Sometimes, it's not visible at first glance.

Recalibration... that's a good shout. I hadn't considered that. I've got a decent OBD reader, will have a look for that option. If its not that I will have a more detailed look at the connections. Do you have any experience with this? Like could it really be the issue if the connection looks fine? Thanks for the tips!

Yes, recalibration can resolve it, but given the low heat symptom along with the fault, a faulty sensor or wiring issue is most probable. If connections appear perfect and recalibration doesn't work, I'd advise a workshop visit for thorough diagnostics before parts replacement.

Thanks for the advice, I took it to the workshop, and it turns out you were spot on. The cable/plug connector was indeed defective, even though it looked fine at first glance. They replaced it, charged me 95€, and everything's working perfectly again. Much appreciated!

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CHEVROLET

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TRAX