Have found excellent 960 power seats for my 940. Both seats required powering to slide forward to remove two rear mounting bolts. This worked fine for driver's seat, but I am getting no response when power is correctly applied to passenger seat. Nothing - no movement possible in any axis. Question 1: is there a way to remove the two rear bolts if the seat is fully slid back and not powerable? Question 2: is there a likely culprit if there is no seat response at all?

Thanks,
Doug

You don't describe how you are correctly powering the passenger seat, but I wonder if it might have be related to the the fact that normally the driver seat can be operated with the ignition key off, and the passenger seat must have the switch turned on to operate.
John

Good points - as for the key being on to enable the passenger power seat, I tapped 12V in at the output of the fuse slot and verified receiving 12V at the connector for the seat. There is only one 30A fuse labeled 'Power Seat', which seemed odd given Volvo attention to separating seat functin in areas like heaters (separate fuses). No key available - this is in a u-pick type yard. Also, I tried applying 12V directly at the seat connector, but was not clear about which one was for the heater, and which was for the seat movement. Next visit, simple trace back to fuse panel will solve this. One point, one of the connectors has three wires: two large enough for current needed, and a third, small orange wire that must be some sort of control voltage to a relay? Or enable voltage to a control module. Can't really see what's going on under the seat.

I also suspected the Stop button being the culprit, but only later realized that I may need to hold it depressed while exercising the seat, as seat travel may have exceeded some override feature. The passenger seat was full back on the rail, whereas the driver seat was somewhat forward of that and was operable. Somewhere i read that holding the Stop button depressed instead of just placing it in or out can defeat the excessive travel issue. I dunno - will try.

As for removing rear bolts by just peeling plastic covers out of the way, I am stymied. No tool I have can fit in that very tight space, even though the bolt head is fulling visible.

Will visit yard again this week to continue quest

On the rear bolts, pry off the small plastic covers-you may need to break them,
then bend the small metal tabs on the rear out of the way and then you should be able to get a 14mm box end wrench on the bolt.

Possibly the problem of no power at all to the seat is that the stop button may be pushed. Push the red stop button and see if that makes it work,
On removing the rear bolts, remove the small plastic covers that hide the bolts and with a wrench you should be able to remove the bolts although it may take a little patience.

Jimo