Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: Cliffo B on 14 December 2011, 21:01:18
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Hi all miggy has got a problem and at a bad time for a dead blower motor(no demist/heater boost etc)
The climate control display seems to be indicating all ok
Haynes gives F33 as blower motor feed which checks out ok
Does any one please know of any further checks I can do before removal of the motor and resistor for checks
IE are there any relays to take into account?
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Speed controller? Had a scuttle drain overflow?
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Thanks TB Speed Controller?
Is that what Haynes calls the Series Resistor?
Don't know of a scuttle overflow
However thinking about it possible I could have been over enthusiastic with a powerwasher last week
Thanks will check for signs tomorrow :y
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Is this the "hedgehog" or is that domething different ? :-\
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Ah yes Albs thanks :y
Possibly could be I think it may have a "hedgehog look" as it must be a few resistors wired in series with cooling fins or such to work as the climate control display increases fan speed
IE Speed Controller
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Yup, hedgehog.
Not resistors Cliffo B - its a fully transistorised speed controller on cars with climate control.
Easiest way to tell if it is that is put it on a code reader that can do live data of the climate panel.
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TB Thanks for that very relevant info,now realise std cicuit testing is a no no
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TB Thanks for that very relevant info,now realise std cicuit testing is a no no
You could still remove both wires (red and black, IIRC) from the speed controller to the fan, then connect 12 volts across these to see if the motor runs. That will tell you if the motor has had it. If the motor is OK, and the fuses are intact, speed controller would be under suspicion. Get a 2nd hand one and see if that works. :y
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Thanks Kevin, I think I already have a speed controller organised from a member
Good to know its so easy to check out the motor without risk
Trouble is I simply can't allow the time either for myself or miggy for remedial action
Its the time of year for families so straight after I'll have to be on the case
Now fairly sure that the problem is not caused by a blocked scuttle drain
I'll pull the glove box and take it from there :y
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I had the same problem last year.... :( :(
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Now on with trying to sort this problem(weather's improved)
Need some advice/help please
Got as far as air bag removal
Guess what!! some useless idiot's been here before
Problem is they've really damaged the 4 airbag torx screws possibly by useing a star bit of slightly smaller size
2 have released OK other 2 are tang stripped
I'm nervous of causing a trigger as I think its going to mean useing a disc cutter or hacksaw to slot the screws
And may involve some light tapping
Or worse still a grinder to remove the heads
I disconnected the battery last night with the usual under 15 sec silent cut off
Question is is the airbag now disabled?
Airbag connector is still connected
It will be better for me to work out how to release the connector with the airbag unit detached
And old hands are not as nimble as they used to be
Thanks all
Can I take this chance to wish all a happy and prosperous New Year :y :y
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What a pain when you come across someone else's bodge. >:(
I would also disconnect the connector from the airbag. The system will be completely de-energised now but less wire attached to the airbag will be an additional precaution.
As to what you do next depends on you. See if you can work around the airbag in place. Can you at least get to the motor wiring, disconnect it from the controller and apply 12 volts and see if it runs or not? This would tell you if the motor itself needs to come out. If not, I personally would probably risk cutting a slot in the airbag screws with a dremel or similar, or drilling the heads off. Try not to be in the line of fire of the airbag while doing this (work from the side) and protect it from flying swarf with a damp rag or something.
I think you have to try hard to set an airbag off accidentally once it's completely disconnected, but they can cause nasty injury so it pays to be as cautious as you can.
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Now on with trying to sort this problem(weather's improved)
Need some advice/help please
Got as far as air bag removalGuess what!! some useless idiot's been here before
Problem is they've really damaged the 4 airbag torx screws possibly by useing a star bit of slightly smaller size
2 have released OK other 2 are tang stripped
I'm nervous of causing a trigger as I think its going to mean useing a disc cutter or hacksaw to slot the screws
And may involve some light tapping
Or worse still a grinder to remove the heads
I disconnected the battery last night with the usual under 15 sec silent cut off
Question is is the airbag now disabled?
Airbag connector is still connected
It will be better for me to work out how to release the connector with the airbag unit detached
And old hands are not as nimble as they used to be
Thanks all
Can I take this chance to wish all a happy and prosperous New Year :y :y
Only needs glovebox out (better access) to change resistor ???
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Thanks Kevin,now going to have to try the slotting with fine disc cutter approach
Will keep out of the line of fire
I'll disconnect the connector will have to try snipey pliers
Just needed to know I'd done all possible to disarm the trigger
Suppose there's always a risk
All I can do is use care to reduce odds
During the time of owning Miggy (about 3yrs)she's never been away from my care
So it looks as if the previous owner is to blame
Although the screws are not high tensile they've certainly been badly abused/butchered and need replacement
Oops sorry seemed to have lost my 2 last lines (found them for you Cliff.... ;) )
Now wondering what other shocks I'm in for as I go deeper in
Thanks again I'll let you know how I go on
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Thanks Rob already have glove box off
can only see/access bottom of fan housing
A large cable trunking plastered with loads of masking tape is in the way
It appears to me some hamfisted ar*e has been here before
I feel I need to check out what's gone on previous for my peace of mind
An airbag secured with damaged torx screws seems dodgy to me
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As RobG says, only need glovebox out to change speed controller. Bit fiddly.
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Probably not helpful but..
My recollection is that the top flange of the glove box is clamped behind the lower edge of the air bag module. 3 torx screws hold the lower edge of the air bag module.
I have always taken the 3 torx screws out and gently prised the lower edge of the air bag up to allow the glove box to come out.
If you already have the glove box out then I presume *someone* must have cut the top edge off the glovebox to allow it to come out..............
PS - sparks from a grinder are astonishingly effective at burning little pits in (or welding themselves to) the inside of your windscreen.
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Thanks Andy,Ive managed to get the glovebox off and the airbag cover as per
Jimbob's "howto"
The top edge of the air bag cover is secured by a 8"long thin bolt which acts as a hinge pin
I've checked the motor as you advised Kevin and it's OK :y
Thanks
So full speed ahead with a replacement speed controller
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Thanks Andy,Ive managed to get the glovebox off and the airbag cover as per
Jimbob's "howto"
The top edge of the air bag cover is secured by a 8"long thin bolt which acts as a hinge pin
I've checked the motor as you advised Kevin and it's OK :y
Thanks
So full speed ahead with a replacement speed controller
Did you manage to sort one Cliff
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Yes. :y :)
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Thanks Rob have one on it's way :y
Just been out to Miggy for a reappraisal
Going to follow your advice and fit the speed controller with airbag in-situ
Allthough got some strong reservations/worries about previous work done with regard to the 4 No 30 airbag torx screws
What I need to know is:-
As the screws are special
They have a flanged head that forms a fixed washer with the underside of the flange toothed to bite in to the airbag metal brackets
Question is:-
Is the airbag system electronicaly sensitive to the torque setting of the 4 torx screws??
Has someone stripped the splines off 2 screws and damaged the 2 others because of system Fault Codes?
As I have released 2 screws could be I could have fault codes on power up
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Is the airbag system electronicaly sensitive to the torque setting of the 4 torx screws??
I don't believe so.
If its the ones (or identical to) the 3 that you undo to remove glovebox, I should have some here if you want to change them. If you want them, PM your address and I'll pop in post, but can't do for a few days due to manflu :-[
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Thanks TB their not the same
I have some on order at the dealers
Just in case I finish up haveing to do a drill out job
Sorry about the Manflu
What works for me is the full course of 500ml paracetamol capsules not pills
Backed up with a generous bedtime slug of whiskey & hot water to sweat it out :y :y
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Just been searching the Forum to find out how the speed controller is fixed in
Could'nt find anything but found some pics of the S/C
Visuals of it located in the car appears as if it could be latched into it's housing
It would be nice to remove it tomorrow ready for Monday
So I'll have a go and fiddle around
Any advice/tips much appreciated :y
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Get yourself upside down in the passenger footwell with a torch.Its just held on by two plastic clips,one attached to either side.
Similar to most electrical connectors - you press the bottom of them in towards the side of the controller to allow them to open out at the top, and then pull it out.
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Thanks Albs should be ok with that info no probs with getting upside down :y
Getting back right way up could be a differant ball game ;D
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Yip Yippee ;D It seems the Climate Control is now in Apple pie order :y
Will be setting off shortly for our weekly 130ml trip to the East Coast so can do some testing
Can endorse the fiddly job comments
And managed to make the on back in footwell access easyier
Used a piece 3" foam ::)
Heartfelt thanks to all for the usual Forum excellent info and advice :y
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Glad your sorted Cliff. :y............will keep you informed about proceedings with Royal Fail. ;) ::)
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And not to forget Albs who sorted me out the Speed Controller :y :y