Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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Im trying to find a resistor that will turn off my airbag lights since iv unplugged my pretensioners
the official ones from steering wheel suppliers etc use a 2.2 ohm 0.5watt resistor
i have tried a 2.2 ohm 3 watt resistor, that didnt work
would the watt make a difference?
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John
Member
Registered: 30th Jun 03
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Are you sure you used the right resistance?
The one you posted in that numbers thread was completely wrong.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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yeah they are deffo 2.2ohm, thats the resistance isnt it?
the only diff between my ones and the ones that work is the wattage but i dunno if that would make a diff
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John
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Registered: 30th Jun 03
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Wattage is how much heat it can dissipate, shouldn't affect what you want to do.
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Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
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Why do you need the light out steve? Just take the cluster out and sort it that way 
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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yeah thats the last resort plan lol would rather do it properly if i can
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Dom
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Registered: 13th Sep 03
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It shouldn't make much odds although tolerance could be an issue so that might be worth checking. Are you simply adding resistance to two pins/lines? Sure you that it is 2.2ohms that it needs to 'see'?
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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well 2.2 ohms is what was supplied by a steering wheel company that some guy has put on his puma and that works
i measured the resistance across the pre tensioners and it was about 1.8 ohms 
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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quote:
Originally posted by Steve
properly
Define 'properly'?
You're bodging some resistors in to trick the light into going off, that's not properly either 
If anything, removing the bulb is the better option as it breaks the circuit completely rather than just preventing the current from flowing.
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IvIarkgraham
Premium Member
Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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Buy a variable resistor, problem solved
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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i say properly because it still maintains the correct light sequence
which by all accounts apparently isnt an mot fail if its not correct, but i cba with questioning come mot time
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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but yeah light removal is a last resort option
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SXi_Tim
Member
Registered: 11th Mar 03
Location: South Yorkshire Drives: RS3, LET B
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Airbag light on is only an advisory though iirc, if its not there at all they won't pick up on it.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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got all sorts of warning lights waiting to be fixed abs, traction control, airbag...
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Dom
Member
Registered: 13th Sep 03
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quote:
Originally posted by Steve
well 2.2 ohms is what was supplied by a steering wheel company that some guy has put on his puma and that works
i measured the resistance across the pre tensioners and it was about 1.8 ohms
Try a 1.8ohm 1% and see if that works; farnell, cpc, RS usually stock them. Saying that, i think taking the bulb out would the easiest.
Do you know if anyone else has managed this 'resistor mod'?
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Gary
Premium Member
Registered: 22nd Nov 06
Location: West Yorkshire
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Cant you plug in the pretensioners again then test the resistance across them?
THen you'll know exactly what you need
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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quote:
Originally posted by Dom
quote:
Originally posted by Steve
well 2.2 ohms is what was supplied by a steering wheel company that some guy has put on his puma and that works
i measured the resistance across the pre tensioners and it was about 1.8 ohms
Try a 1.8ohm 1% and see if that works; farnell, cpc, RS usually stock them. Saying that, i think taking the bulb out would the easiest.
Do you know if anyone else has managed this 'resistor mod'?
yeah using a 2.2 ohm 0.5W
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Dom
Member
Registered: 13th Sep 03
User status: Offline
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quote:
Originally posted by Steve
quote:
Originally posted by Dom
quote:
Originally posted by Steve
well 2.2 ohms is what was supplied by a steering wheel company that some guy has put on his puma and that works
i measured the resistance across the pre tensioners and it was about 1.8 ohms
Try a 1.8ohm 1% and see if that works; farnell, cpc, RS usually stock them. Saying that, i think taking the bulb out would the easiest.
Do you know if anyone else has managed this 'resistor mod'?
yeah using a 2.2 ohm 0.5W
So someone has managed to bridge what ever pins needs on the pretensioners using a 2.2ohm .5w resistor? If you can, find out what the tolerance of that resistor is/was because wattage shouldn't matter (from what i remember of electronic classes back in school). Only thing i can suggest is to purchase 0.5w resistor, still odd though
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