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[feeutfo]

....Again, for their help and hospitality in sorting out my Mrs Gixers pas side heated Elite seat.
Started yesterday lunch time, and as usual made the mistake of assuming an afternoon would be plenty of time to sort it. Curry in the evening then back home was the plan.

Wrongggg... should have known really. Turns out there was actually nothing wrong with the heater elements. The stat. All the wiring was fine. Switch in the car was fine. Couldn't find anything wrong with what was tested, except for the heater controller. Little box tucked up in the seat foam with a double sided circuit board inside. This we could only assume was the faulty part. 

...and did we have one? No! Too late to visit the scrappy by then so a job for the following day. Beers, Popadoms,beersCurry, beers, coffee, ice cream.

Next day trip to scrappy, fit circuit board. Test. All is well. Wack it back together, bolt it back in the car. All works beautifully. Mrs G says "thank you so much.  "


Must say it brings home how much goes into making these seats. Occupancy sensors etc. and now we know where the blasted heater controller and stat are located. Might be able to come up with some easier methods to diagnose the faulty part as well. 

Cheers J. Another lesson in electrical fault finding. Impressive. 

[Shackeng]

Impressive, well done to all.

[feeutfo]

And I'm now so knackered if posted this in the wrong section.   

[Lazydocker]

Not a bad way to spend the weekend though

[feeutfo]

Not a bad way to spend the weekend though

The company yes. This particular job, dismantling seats, no. I find dismantling these things not too bad, but the fault finding would have been difficult for me. Where as perhaps TB felt the same but opposite way round. A four spanner job, as Mr Haynes would say. They are full of sharp edges and fiddely hooks. No need to cut me nails for a week, I've bust em all off. 

[omega3000]

Little box tucked up in the seat foam with a double sided circuit board inside

Just where i would never of guessed they would put it 

[TheBoy]

Aye, a bit of a polava to fix it.

Dunno why, I'm cream crackered.  Its not exactly what you would call a strenuous task, carrying seat around aside (they are quite heavy), but I feel inexplicably knackered.  And I had a lie in this morning

But it was enjoyable, I learnt loads, realised we need to redo the guide (I started posting random thoughts in test), and now between us, know an awful lot more about how the seats work that we did Saturday lunchtime.

And I got to have curry, and a proper "Mrs TheBoy's B&B" breakkie.

And to top it off, I seemed to have gained another cargo net, so I can keep one in each Omega .  I'm easily pleased

[TheBoy]

Not a bad way to spend the weekend though

The company yes. This particular job, dismantling seats, no. I find dismantling these things not too bad, but the fault finding would have been difficult for me. Where as perhaps TB felt the same but opposite way round. A four spanner job, as Mr Haynes would say. They are full of sharp edges and fiddely hooks. No need to cut me nails for a week, I've bust em all off. 

The dismantling is a bit of a ballache, as is reassembly.  I seem to have delicate fingers now, having them crushed, cut, squashed, pulled and generally abused.  Not to mention burned on your bloody brake discs.

I agree, I reckon:
Seat out,
Outboard plastics off
Leather detacched front outboard and front edges

This gives access to that pesky controller, which then allows diagnosis, via a meter, into whether:
elements bust
stat disfunctional
signals from dash switch valid
power reaching the seat
If all 4 of these true, controller itself knackered.

If element open circuit, whip the back off the seat (2 torx) to access plug to rear seat elements, again to measure via meter, allowing you yo know if you need to strip the leather off the seat back (3 sets of elements - main and 2 bolsters), which is a 10 spanner job in the Haynes 1-5 spanner scale, or whether you need to strip the base of the seat (2 sets of elements - main and bolsters (combined)), which is a 12 spanner job!!!

[omega3000]

redo the guide 

That will be good ...need to do mine at some point 

[Webby the Bear]

Big thanks to TB from me too.

He cleared all my codes, checked my handy work and cleaned my ICV on Saturday morning.

Top man, cheers Bro 

[feeutfo]

Not a bad way to spend the weekend though

The company yes. This particular job, dismantling seats, no. I find dismantling these things not too bad, but the fault finding would have been difficult for me. Where as perhaps TB felt the same but opposite way round. A four spanner job, as Mr Haynes would say. They are full of sharp edges and fiddely hooks. No need to cut me nails for a week, I've bust em all off. 

The dismantling is a bit of a ballache, as is reassembly.  I seem to have delicate fingers now, having them crushed, cut, squashed, pulled and generally abused.  Not to mention burned on your bloody brake discs.

I agree, I reckon:
Seat out,
Outboard plastics off
Leather detacched front outboard and front edges

This gives access to that pesky controller, which then allows diagnosis, via a meter, into whether:
elements bust
stat disfunctional
signals from dash switch valid
power reaching the seat
If all 4 of these true, controller itself knackered.

If element open circuit, whip the back off the seat (2 torx) to access plug to rear seat elements, again to measure via meter, allowing you yo know if you need to strip the leather off the seat back (3 sets of elements - main and 2 bolsters), which is a 10 spanner job in the Haynes 1-5 spanner scale, or whether you need to strip the base of the seat (2 sets of elements - main and bolsters (combined)), which is a 12 spanner job!!!

Aaeye, compliments to the chef.

Yeah, see I reckon the electrical diagnosis is the hard bit, I could meter the element circuits, but that's about it. Although that was an interesting test on the spare dash switch resistance, repeated perfectly in the car circuitry to prove the fault was in the seat.

Agree on order of working, I'd have pulled the whole lot apart unnecessarily. Suspect the controller will be most important info to most, and will save a lot of work if that's at fault.

[tidla]

nice one.

give me a clue regarding my seat overheating.

not a donut bush mentioned anywhere

[TheBoy]

nice one.

give me a clue regarding my seat overheating.

not a donut bush mentioned anywhere

Overheating in just one area?  If so, suspect the element is about to fail.

[tidla]

drivers seat base regardless of setting. 2 minutes then time to turn off.

[feeutfo]

drivers seat base regardless of setting. 2 minutes then time to turn off.

Sounds like a stat problem, but that's TB's dept.

Both the seats that came out of my car where the same to start with, but seemed to settle with use.....  and some eye watering.