Just bought a used 2016 Mazda CX-9 AWD and I have this cable hanging under the rear axle. Anyone know what it could be?
imgur.com/a/ejmdRnv
imgur.comPosted Mar 6, 2020, 11:01 PM UTC
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imgur.comRear diff lock, EVAP vent valve, fuel level sender...? I'm trying to think of everything near center by the rear axle on most cars that might be similar.
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Figured out what it was. It's a suspension ride height sensor for the automatic leveling headlights.
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Ah, that make sense. Do your headlights work "better" now?
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I haven't installed one yet, I'm going to order the part and install it myself. The dealer wanted to charge me $515 for it but I don't notice any issues with the headlights right now. It's most likely used for towing or when you have a heavy load in the back to point the headlights down but I don't ever do either of those anyways
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Yeah, this is a required system for HIDs especially, so one of my cars has it. Kinda nifty to think it's so self-aware but it's also one more thing to go wrong. Installation should be a breeze, but we'll be around if it turns into a chore.
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If it’s under warranty just let the dealer handle it. And remember emissions components have a longer warranty than the bumper to bumper.
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That sensor is broken off and still plugged in. Likely part of the evap system. Crawl under and look for the other end.
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Shouldn't it be throwing a check engine light though?
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If it’s part of Evap it will eventually.
OBD cycle only tests for Evap under certain conditions. (Outdoor temp range and fuel levels have to be at a certain point first) so if you have a full or completely empty tank or it’s freezing outside, it won’t run the evap cycle test.
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Figured out what it was. It's a suspension ride height sensor for the automatic leveling headlights.
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Do you know if it's something that would be replace under Mazda's warranty?
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I don’t know for sure but if it’s still inside the window it can’t hurt to ask. If I were you tho, I’d just take a min or two and crawl under there.
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It may eventually, but it depends what it is.
You'll need to find where it came from and get a pic.
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Figured out what it was. It's a suspension ride height sensor for the automatic leveling headlights.
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Looks to be a plug for a sensor... Any check engine lights?
No check engine lights, also looks like it's still plugged in but broken off
Looking at it again it may be a trick sensor. If that is what it is, then you may want to crawl under and see if there's any sensors that are disconnected but still in place.
Figured out what it was. It's a suspension ride height sensor for the automatic leveling headlights.
I didn't even think of that being a possibility, nice that you found out it wasn't anything too serious.