![]() | Home > Technical (L322) > New ignition switch fitted, not cranking |
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Grofus Member Since: 24 Mar 2017 Location: Co Clare Posts: 577 ![]() ![]() ![]() |
Check the continuity of the new switch
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Qahmed95 Member Since: 28 Jan 2017 Location: Birmingham Posts: 27 ![]() ![]() ![]() |
Do you know pins I need to check continuity through.
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Grofus Member Since: 24 Mar 2017 Location: Co Clare Posts: 577 ![]() ![]() ![]() |
No but you should be able to work it out from the loom. One will be a common ground. The others will be the various live feeds. They should all give a value through the common ground. 2007 Vogue TDV8 in Zermatt Silver with Charcoal |
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Qahmed95 Member Since: 28 Jan 2017 Location: Birmingham Posts: 27 ![]() ![]() ![]() |
So checked all the connections in both positions of ignition, all are the same except for the black and yellow wire going to the EWS unit. On the new switch, when turning to crank it over, there's a reading of 0.13 v and drops to 0, and on the old one it goes to around 12v before going back to 0. |
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Cam-Tech-Craig Member Since: 04 Aug 2011 Location: Gloucestershire Posts: 16369 ![]() ![]() ![]() |
I haven't touched one of these for ages but aren't they coded to the car? Hence why your immobiliser won't allow the starter to engage?... |
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Qahmed95 Member Since: 28 Jan 2017 Location: Birmingham Posts: 27 ![]() ![]() ![]() |
From what I've read, the ring antenna is above the switch and that's what sends the key info to the EWS. So this should theoretically work without any coding. |
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Cam-Tech-Craig Member Since: 04 Aug 2011 Location: Gloucestershire Posts: 16369 ![]() ![]() ![]() |
So, exactly what have you changed? |
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Qahmed95 Member Since: 28 Jan 2017 Location: Birmingham Posts: 27 ![]() ![]() ![]() |
Just the ignition switch. |
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Cam-Tech-Craig Member Since: 04 Aug 2011 Location: Gloucestershire Posts: 16369 ![]() ![]() ![]() |
The metal barrel or the electrical black box?
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Qahmed95 Member Since: 28 Jan 2017 Location: Birmingham Posts: 27 ![]() ![]() ![]() |
So just changed the electrical box, I opened it up and found some black residue on pin 8 which is for the EWS, I was cleaning it as I was replying to you. Just installed it in the car and it's running perfectly now. The residue was only on the one contact, that's why the ignition was working but it felt as if the immobiliser was not allowing the engine to turn over. |
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Grofus Member Since: 24 Mar 2017 Location: Co Clare Posts: 577 ![]() ![]() ![]() |
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Cam-Tech-Craig Member Since: 04 Aug 2011 Location: Gloucestershire Posts: 16369 ![]() ![]() ![]() |
Great news |
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