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Everything else appears to be in working order. I am in the process of installing the remote top be option so my battery will be disconnected, hopefully this resets it.
While the battery is disconnected, touch the positive and negative leads together for a couple seconds to ensure all modules are discharged. This may help your problem.
More likely, the seat module needs to be reflashed/programmed using SDD through maybe a dealer or anyone who has access to Jaguar's SDD hardware/software.
Everything else appears to be in working order. I am in the process of installing the remote top be option so my battery will be disconnected, hopefully this resets it.
Do you mean the seat won't tilt electrically or the seat back won't tilt forward to allow access to the back seat?
I agree with CJ, it will likely take a re-flash f the seat controller. There are several instances of the problem on the forum. Do a search on seat controller.
Everything else appears to be in working order. I am in the process of installing the remote top be option so my battery will be disconnected, hopefully this resets it.
Interestingly, this just happened to me as well.
I don't have a dealer nearby, so I'll first see what i can determine first.
I'm wondering if it isn't a broken gear.
I'm gonna tear into it in the next few days.
I'll let you know what I find, and I'd appreciate if you let me know if the problem is fixed by the "dealer flash".
It sounds like the motor has lost its reference points of where to operate.
It might be worth trying to reset these parameters
Select one of the memory settings say button one then hold as if you are resetting for a few seconds
Then try to move seat forward as you hopefully will have the set the backward parameter.
There is a name for electric motors remembering their operating parameters but I can’t recall what it’s called
It used to happen on my previous MBenz and this was always the fix.
Yikes!!! Well, if you're really up against it, and feel adventurous, try this method I used to run the incline motor up to mid-position. You have to get access to the plugs on the passenger seat module, which lives under the front bottom of the seat. You have to undo the two front bolts holding the seat to the floor. Ideally, you also have to unbolt or at least loosen the two rear bolts holding the seat to the floor. I realize you might not have access to the rears 'cuz the seat might be declined too far. The idea is to get enough clearance so you can unplug the connectors going to the seat module.
To be safe, I unplugged all three (as I remember...) connectors from the module. Now, you have to locate two pins on connector PS017 - might be the largest of the connectors (my memory?). You're looking for pins 8 and 9: should have a blue and a green/blue wire, respectively. These connect (eventually) to the Hall-Effect motor controlling tilt. You're going to apply battery voltage to these two pins; polarity unimportant right now - if seat goes the wrong way, then reverse polarity until seat is now inclined mid-position. Restore all connectors, bolt seat back down, and you should be good-to-go.
I included the schematic if you'd like to follow. Again, it's a Kamikaze method if you're up to it...
Thx Tracee way to much for me. I was able to release seat by chrome hooks on top ( what u use to lean seat forward) and then back seat up so back rest on rear quarter
Hard to explain but seat is upright but not locked in, will have to do for now.
Yikes!!! Well, if you're really up against it, and feel adventurous, try this method I used to run the incline motor up to mid-position. You have to get access to the plugs on the passenger seat module, which lives under the front bottom of the seat. You have to undo the two front bolts holding the seat to the floor. Ideally, you also have to unbolt or at least loosen the two rear bolts holding the seat to the floor. I realize you might not have access to the rears 'cuz the seat might be declined too far. The idea is to get enough clearance so you can unplug the connectors going to the seat module.
To be safe, I unplugged all three (as I remember...) connectors from the module. Now, you have to locate two pins on connector PS017 - might be the largest of the connectors (my memory?). You're looking for pins 8 and 9: should have a blue and a green/blue wire, respectively. These connect (eventually) to the Hall-Effect motor controlling tilt. You're going to apply battery voltage to these two pins; polarity unimportant right now - if seat goes the wrong way, then reverse polarity until seat is now inclined mid-position. Restore all connectors, bolt seat back down, and you should be good-to-go.
I included the schematic if you'd like to follow. Again, it's a Kamikaze method if you're up to it...
Thanks, Tracee -
I thought I'd give this a try, but I'm not seeing the blue and a green/blue wires - below is what I'm seeing.
Interestingly, there is not a plug going into the middle socket of the module, and the module mounts are broken - wonder if the previous owner had an issue also.
It you look closely at the plug(s), there are tiny (really tiny) numbers showing the pin numbers. Maybe see what colour wires are on these pins (8 and 9). Should be fairly heavy wires - those motors pull a lot of current. As memory serves, I had (3) plugs on that module; will study schematic for a while and update...
only one of the wires in 8 and 9 are heavy wires -
put the seat back in the car - i can hear the motor for both directions -
may have a different issue than op - may be a broken gear - will need to tear into the seat,
but that's a project for another day -
thanks for your suggestions - cheers!
04-16-2019, 07:01 PM
