MirMan

Hello forum,

First post after unsuccessfully trying to search for this particular problem over the vast expanse of the internet.

Problem - Power Seat, Drivers Side Recline Function- Stuck at full tilt backwards and not reclining forward. Other movement (on rails) front and back is functioning fine.
*
Steps under taken already:

1) Checked all fuses, wiring harness, connectors etc. for continuity - OK

2) Power Seat Switches - removed, contacts cleaned, put back together - all functioning OK

3) Getting 12V supply in both directions at Recline Motor Connector

4) Removed Recline Motor from seat assembly - 12V applied, operates fine in both directions.

Which leads me to the last area to consider:

5) Seat Recline Hinges with connecting rod between them.

Both hinges do not turn at all and appear to be locked in place. I was expecting, that once the motor is removed and the hinges separated, that it could be possible to turn the hinges manually. However I can’t figure how these function mechanically and what's locking them in place.

Any advice would be appreciated.

Photos attached:





Hinge - opposite end





Hinge - opposite end





Hinge - opposite end with connecting rod





Recline motor





Hinge - motor end





Hinge - motor end

vex008

iTrader: (4)

maybe the "torque" of the motors are gone (dunno if correct word).
turn when free but once weight/load or stress is added its a no go.
I am not mechanically gifted but had a similar issue with a remote control car and was told that was the issue.

MirMan

Thanks Vex, that could be a factor.

Just an update, the problem appears to be a misalignment of the two hinges causing the connecting rod to jam. Motor not having enough torque to drive through. This could have happened by unequal force/weight being applied to one side of the seat. I had to turn one hinge slightly more to realign and now both move together again.

dkmura

iTrader: (64)

Sorry to say, I have no insight into your problem. But it's the first time I've heard of a 350Z seat hinge failing, so not sure if you'll get many responses.

zakmartin

If the actuator isn't functioning under normal load but is working fine when it's off the seat frame, then I'd suspect that the issue lies with the actuator. The alignment of the axle would have to be pretty bad for it to affect the actuator's ability to turn. Try taking off the cover and see if it's full of shavings or if the brushes have failed.