Fenn
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| posted on 22/6/13 at 08:27 AM |
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Caterham 7 125 Roadsport - Immobiliser issue (Sterling Excel)
Morning all!
First post! Sorry it had to be a gremlin!
I have been building a Roadsport 125 with my Dad and when we came to first fire up the engine (1.6 Sigma). We got. Nothing. Looks like the immobiliser
is not disengaging.
Caterham have been unusually unhelpful in this instance (main fella we speak to is on hols) but they have suggested that the Sterling Excel
immobiliser they use very rarely fails.
So, two questions to start out (as hoping someone may have some experience here)...
1. Where under the dash is the immobiliser located, please private message the location if known.
2. Could a bad earth cause this? Can we test by earthing directly to the battery neg terminal?
The immobiliser should disable when the tag is in proximity to the ignition barrel by showing a steady red light meaning you can start the engine. It
currently just flashes merrily away meaning it is still immobilised.
Any help would be much appreciated. We are so close and will be gutted if Caterham have to complete as part of their post build check.
Thanks
Andy
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designer
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| posted on 22/6/13 at 09:14 AM |
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You would be better on the Caterham forum with this question as it's a standard caterham feature.
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Fenn
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| posted on 22/6/13 at 09:52 AM |
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Thanks! Will do!
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blakep82
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| posted on 22/6/13 at 11:15 AM |
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The sterling excel comes with a stainless steel, unpainted cover plate the fits over the top and is bolted down. Its supposed to be fitted to a steel
bulkhead. The unit itself only only has black wires coming out. Originally would have had coloured tags on it to help identify what goes where, but
are cut off when fitted.
Finding out what does what is supposed to be difficult 
Hope that helps locate it. I'd suspect the little circular antenna bit myself, or the tag isnt coded in right.
Mines still in a box in someone elses garage where it's been for a year now, so can't help much more than that
________________________
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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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theduck
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| posted on 22/6/13 at 12:20 PM |
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What does the led light do when you turn the ignition on? And then when you try to start it?
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Fenn
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 posted on 22/6/13 at 01:43 PM |
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Found the box, took it off and took some paint off under the mounting where the earth goes.
It now disables 
Thanks for the help all.
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iank
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| posted on 23/6/13 at 07:14 PM |
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So was it you or your dad that originally fitted it?
Good to get it fixed as earth faults can be a pig to track down.
Does the engine fire up now? That's a big moment.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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jossey
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| posted on 23/6/13 at 08:59 PM |
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Nice work guys glad it got sorted :-)
Now get off our forum it's not for you posh folk :-) ha ha
Thanks
David Johnson
Building my tiger avon slowly but surely.
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