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Old 10th June 2024, 09:49   #21
Jamiewelch
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If someone near you has an EWS editor for the E46 era of BMW they can take a dump of the black chip and compare the key rolling codes. It could be these have fallen out of sync, these can be synchronized using the EWS editor to save using new chips.

You can check with live data on the EMS2000 if the ECU is mobilised or not, that may help in finding if things are talking. The EWS will also have live data that will tell you if the key matches.
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Old 10th June 2024, 12:53   #22
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You can check with live data on the EMS2000 if the ECU is mobilised or not, that may help in finding if things are talking. The EWS will also have live data that will tell you if the key matches.
Can the above be done with T4 Jamie?

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Old 15th June 2024, 15:36   #23
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Quick update starter solonoid spade connector is solid and car cranks if I supply a 12v feed directly .
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Old 15th June 2024, 16:14   #24
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And does the engine fire and run?

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Old 15th June 2024, 19:32   #25
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OK let's go back a step - you found one of the EWS pins had detached. What what the state of the corresponding connector, is the missing pin in that connector, any green oxide ?

Good hunting
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Old 17th June 2024, 07:01   #26
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Quote:
Originally Posted by Dickyod69 View Post
Quick update starter solonoid spade connector is solid and car cranks if I supply a 12v feed directly .
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Originally Posted by SD1too View Post
And does the engine fire and run?
Hello Rich,

I see that you logged-on yesterday and I was expecting and hoping for your answer to my question but I was to be disappointed. Perhaps I should explain how relevant it is to your problem.

The immobiliser prevents the engine from running by disabling the fuelling provided by the ECM. It can also cut the electrical supply to the starter solenoid if:
  • The key transponder signal is not satisfactory
  • There's a fault with the automatic gearbox inhibitor switch.
  • The engine is already considered to be running.

Your test helpfully proved that the starter motor is working normally, thank you for that. Next we need to find out whether the engine is immobilised even though there is no indication of this in your Message Centre (which RAVE says is possible), hence my question. If the engine isn't immobilised so that the fuelling is working normally, I would expect your engine to have run when you supplied the starter motor manually, but the ignition key would have had to be turned to position III "start" at the same time and I realise that this would not have been obvious.
If, in these circumstances, the engine doesn't fire and run, we are narrowing the problem down to your replacement immobiliser, its connections and supplies including possible key transponder synchronisation.

We all hope to hear from you soon.

Simon
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Last edited by SD1too; 17th June 2024 at 07:04..
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Old 17th June 2024, 13:31   #27
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Quote:
Originally Posted by SD1too View Post
Hello Rich,

I see that you logged-on yesterday and I was expecting and hoping for your answer to my question but I was to be disappointed. Perhaps I should explain how relevant it is to your problem.

The immobiliser prevents the engine from running by disabling the fuelling provided by the ECM. It can also cut the electrical supply to the starter solenoid if:
  • The key transponder signal is not satisfactory
  • There's a fault with the automatic gearbox inhibitor switch.
  • The engine is already considered to be running.

Your test helpfully proved that the starter motor is working normally, thank you for that. Next we need to find out whether the engine is immobilised even though there is no indication of this in your Message Centre (which RAVE says is possible), hence my question. If the engine isn't immobilised so that the fuelling is working normally, I would expect your engine to have run when you supplied the starter motor manually, but the ignition key would have had to be turned to position III "start" at the same time and I realise that this would not have been obvious.
If, in these circumstances, the engine doesn't fire and run, we are narrowing the problem down to your replacement immobiliser, its connections and supplies including possible key transponder synchronisation.

We all hope to hear from you soon.

Simon
Hi Simon , the engine didnt start when I powered the solonoid , I had turned the key to but do I need to be holding it in the full start position (as if I was starting it normally)? Also the pin that was missing was in the connector but enough was poking out for me to remove it. Visually the connector looks ok there was a small amount of oxidisation and I did clean it with electrical connector spray. Thanks rich
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Old 17th June 2024, 17:16   #28
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... I had turned the key to but do I need to be holding it in the full start position (as if I was starting it normally)?
I'm not certain of that Rich as the technical description doesn't go into that degree of detail. For testing purposes it's best to assume that the ignition key does have to be turned to the cranking position.

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Old 18th June 2024, 16:20   #29
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Quote:
Originally Posted by SD1too View Post
I'm not certain of that Rich as the technical description doesn't go into that degree of detail. For testing purposes it's best to assume that the ignition key does have to be turned to the cranking position.

Simon
Thanks Simon,Will try it at the weekend👍
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Old 18th June 2024, 16:47   #30
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Does anybody on here know anybody who can resync the keys to the ews and sync the ews to the ecu ? (so at least I can rule this out )thanks
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