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16-10-2011, 16:10   #1
Stained Class
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Rover 75 Airbag light!

Hi All

Having trouble with this light being on.

I understand that could be an NCT fail & that the airbag system may not deploy in an accident.

I know there's a fix involving the wires under the front seats.

DONT GO THERE PEOPLE!!!!

Just had the seats out (again) today, WD40'd the connectors & the dam thing's still on.

Also, it's been on diagnostic machines, with no definative result.

My question is, is there anybody anyone here can reccomend in the south east area who specialises in this type of problem?

It would need to be someone good & someone who wouldn't charge like a wounded Rhino.

I'm starting to run out of options on this & the NCT is looming soon.

Thanks in advance for any replies folks.
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16-10-2011, 18:12   #2
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Could be the connector(s) are actually damaged too, also might be a seat belt pre tensioner that's bringing on the light.
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16-10-2011, 18:19   #3
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Also, if you took the seats out, even if you fixed the problem, it would still need to be reset on a diagnostics machine. The light just won't go out.
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16-10-2011, 18:27   #4
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Quote:
Originally Posted by RoverJames View Post
Could be the connector(s) are actually damaged too, also might be a seat belt pre tensioner that's bringing on the light.
Yeah, one diagnostic machine I got it hooked to suggested that might be the case. The connectors seemed in good condition, with no corrision inside.

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Also, if you took the seats out, even if you fixed the problem, it would still need to be reset on a diagnostics machine. The light just won't go out.
I've got blurred vision from looking at internet forums on this subject.
It seems that the light on these cars will reset itself once the problem is fixed.



What I'm looking for really is a specialist in these systems who can diagnose this problem & fix it cheaply.
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16-10-2011, 19:06   #5
ken
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I've got the same problem with a stilo and on any of their forums it says in big capitals. DO NOT PUT WD-40 OR ANY OTHER OIL ON THE CONNECTORS. It advises taking apart the connectors and blowing them out with compressed and giving the ends a rub of light sandpaper or an emery board.
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16-10-2011, 19:13   #6
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Originally Posted by lucyfur09 View Post
I've got the same problem with a stilo and on any of their forums it says in big capitals. DO NOT PUT WD-40 OR ANY OTHER OIL ON THE CONNECTORS. It advises taking apart the connectors and blowing them out with compressed and giving the ends a rub of light sandpaper or an emery board.
Apparently, technical bulletins issued to Rover dealers advised 'Pulling apart the connecters 3 times & giving them a spray of WD40'.

I've also heard that a 'T4' diagnostic machine is the correct one to pinpoint faults in this system.

Anybody got one of these?
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16-10-2011, 19:18   #7
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Nothing wrong with WD40, it's not an oil. It's a fluid for dispersing water which has lubrication and penetration properties (Ooer Matron). The Airbag module has a resistance of 4 ohms. Might be no harm to get a 4 ohm resistor and put that onto the connector, then measure the working seat's tensioner's resistance value and substitute a resistor for that on the faulty side too. Least then you'll be closer to diagnosing what's actually wrong.

The T4's a testbook if memory serves. Very few in Ireland, but anyone with a Launch X431 upgraded to the Master software will be able to diagnose it correctly too.
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16-10-2011, 19:25   #8
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Quote:
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Nothing wrong with WD40, it's not an oil. It's a fluid for dispersing water which has lubrication and penetration properties (Ooer Matron). The Airbag module has a resistance of 4 ohms. Might be no harm to get a 4 ohm resistor and put that onto the connector, then measure the working seat's tensioner's resistance value and substitute a resistor for that on the faulty side too. Least then you'll be closer to diagnosing what's actually wrong.

The T4's a testbook if memory serves. Very few in Ireland, but anyone with a Launch X431 upgraded to the Master software will be able to diagnose it correctly too.
That's brilliant Owen!

I'm fairly handy with the spanners, but am a bit nervous about messing about the system with soldering irons & suchlike.

What precautions should I take before 'going in'?
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16-10-2011, 20:37   #9
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What precautions should I take before 'going in'?
Protection, Protection, Protection
Sorry mate!
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16-10-2011, 21:04   #10
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Protection, Protection, Protection
Sorry mate!
Heh heh, well I didn't want to go in 'bald headed'!

Seriously though, I'm just looking for someone with the correct diagnostic equipment to locate the problem.

I'll be able to source parts & fix it myself after that, if need be.

Anyone?
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16-10-2011, 21:06   #11
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I can't see any decent mechanic or auto spark struggling to diagnose this issue really.
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16-10-2011, 21:18   #12
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I can't see any decent mechanic or auto spark struggling to diagnose this issue really.
Been to a few of the local guys already.

Also been to Youngs in Kilkenny, the nearest ex-Rover dealers to me.

No joy.

I need someone who's a bit of a 'whizzkid' on these issues.

At this stage, I'm willing to travel anywhere in Leinster to get this done.

Damm thing's really beginning to bug me at this stage.
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17-10-2011, 03:28   #13
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If it hasn't had a crash sensor damaged then its more than likely a 5 minute job with a piece of wire.
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17-10-2011, 18:22   #14
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If it hasn't had a crash sensor damaged then its more than likely a 5 minute job with a piece of wire.
Really. How?
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17-10-2011, 18:27   #15
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I can say for certain that the airbag light resets itself (on 05 model at least) when underseat connectors are tidied up.
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