Inertia switches are readily available from breakers, Ebay etc. Most are 3 pin but often connector only uses 2 of the pins. The one I fitted in my saloon came from a Ford Fusion, Fiesta or similar (the type with yellow top). If you get one from breakers best to get complete with male connector plug and short section of wiring harness - this make it easy to wire into existing loom. Failing that you need to make connector plug - easy enough - most are 3 way AMP connector. In my setup I also installed a bypass switch and a dashboard warning led to show if inertia switch has been triggered (this requires 3rd wire connection).
John On Sunday, 25 September 2022 at 16:33:07 UTC+1 julian wrote: > Hi > > I have found an air bag sensor (though there are none in the car of > course) and close by another potential suspect - see attached. It's the > right sort of size but has three connections where the manual says two, > although one appears at least to be the right colour code. Also it has no > reset button. However what it does have at the top is a cylinder which > might once have been the housing for a plunger. > > I haven't yet tried testing anything like circuit tracing because the > plastic of the connector look easy to break. If it is the right unit, I > will attempt to remove it and see if it can be reset. > > Alternatively do you know if a replacement might be obtained? > > Julian > > > On 2022-09-23 14:33, Jim Hearne wrote: > > It's bigger than you might think, maybe 50 x 40 x 30 with the red button > on the top. > > Jim > > > *From:* jul...@cityaudioservices.com > *Sent:* Friday, September 23, 2022 2:30 PM > *To:* quantu...@googlegroups.com > *Subject:* Re: [Quantum Owners] H4 electrics - inertia switch > > > All > > I'm assuming from what I can see on the web it's likely to be a small > flattish black box. > > Fingers crossed I can find it. > > Thanks as ever for the help > > > On 2022-09-23 14:09, susanandmartin wrote: > > As Steve said, near the door (A) pillar is a common place. In a Mondeo > (company car) a work colleague had a flat tyre and changed it, then the > vehicle wouldn't start – you can imagine he was pretty exasperated. It > turned out the inertia switch was in the boot near where he dropped the > punctured tyre/wheel! > > Martin Scott > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *'Steve Kodź' via Quantum Owners Group > *Sent: *23 September 2022 13:41 > *To: *quantu...@googlegroups.com > *Subject: *Re: [Quantum Owners] H4 electrics - inertia switch > > > > Julian, > > Not sure about a standard location, but I think the wiring would naturally > position this in the passenger foot well area. Mine was attached to the > chassis door pillar in the passenger foot well. > > Regards, > Steve > > On 23/09/2022 13:38, jul...@cityaudioservices.com wrote: > > Hi > > My H4 cut out unexpectedly at the MoT garage after being driven into the > brake test equipment which involved the car being grounded! Looking at the > circuit diagram there are several potential reasons why this happened, most > of which I know how to diagnose and where to look. But one possible > potential problem is the impact sensor which is shown in the Haynes manual. > > Does anyone know if these are usually refitted in an H4 and if so is there > a 'standard' location? It might help me locate it without having to > dismantle the entire vehicle. If anyone has a photo of the actual unit I'm > looking for, that would also help. > > Thanks > > -- > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to quantu...@googlegroups.com > To unsubscribe from this group, send email to > quantumowner...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As > Is" basis, without warranty or the implication thereof. 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Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or > in the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or > alleged to be caused directly or indirectly by the instructions contained > within this or related message(s). > --- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to quantumowner...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/quantumowners/632daff7.1c0a0220.47bb6.259bSMTPIN_ADDED_MISSING%40gmr-mx.google.com > > <https://groups.google.com/d/msgid/quantumowners/632daff7.1c0a0220.47bb6.259bSMTPIN_ADDED_MISSING%40gmr-mx.google.com?utm_medium=email&utm_source=footer> > . > > -- > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to quantu...@googlegroups.com > To unsubscribe from this group, send email to > quantumowner...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As > Is" basis, without warranty or the implication thereof. Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or > in the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or > alleged to be caused directly or indirectly by the instructions contained > within this or related message(s). > --- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to quantumowner...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/quantumowners/f1dd0185f4c20298280faac0be2ea010%40cityaudioservices.com > > <https://groups.google.com/d/msgid/quantumowners/f1dd0185f4c20298280faac0be2ea010%40cityaudioservices.com?utm_medium=email&utm_source=footer> > . > > > -- > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to quantu...@googlegroups.com > To unsubscribe from this group, send email to > quantumowner...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As > Is" basis, without warranty or the implication thereof. 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