After installing both sides my suspension service light came on. I removed the passenger side and reinstalled the factory side, after that the warning went off. I asked for a replacement part and they sent it quickly. During installation I noticed that the wires in the bundle weren't even in these pins. Upon closer inspection, I learned that they had swapped the black and white wires. I had to shorten the wiring harness, attach it to the old shock harness and then plug it in. After that, the signal lamp disappeared. I don't have to do that with new parts. Save time and money buying different parts.