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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897   
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Had the problem just before Christmas after I'd had the rear door open for a long time with the key in th ignition.
Tried the usual lock/unlock proceedures to no avail. Eventually cleared it with doors shut, key in ignition, press lock and unlock on fob, then started as if nothing had been wrong. It's not happened again |
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18th Jan 2010 12:38pm |
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| Porny Site Sponsor Member Since: 31 Aug 2009 Location: Sutton Coldfield - West Midlands Posts: 809 
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But have you taught your new engine ECU to the alarm ECU? You need to put the engine ECU into learn mode (via suitable diagnostic equipment), and then turn the ignition off for 15 seconds. Whn you turn it back on the engine and alarm ECU will be matched. Basically the alarm ECU (10AS) sends out a code, if that code is different to what is stored in the engine ECU it will not start. If you haven't aready done so, you also need to swap the injector codes into your new engine ECU, and make sure the ECU and mapping is correct for your Defender. Ian |
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18th Jan 2010 1:40pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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Just to clear things up.
The new ECU is programmed in my 90 injector and alarm. It was running till january 4th. As I was working on it. It was standing inside or outside depending what I was doing. And no rpoblems with extreme cold. On January 4th I parked more out off the way as I had to start working again. Yesterday I had time again and wanted to get the 90 inside. But it didn't start. Like I said before. The fuel pump runs, the lights oil, battery, engine, and glow plugs come on, but when I turn further the starter motor doesn't rotate. I tested/did the following: Charged the battery. Put 20 ltr additional fuel in. I took the small wire from the starter motor and tested if there any power on when the ignition key went into the starting position. But no power. I connected a test wire on the small connector on the starting engine and hold it to the battery cable. The starting motor turned the engine over at normal speed but the engine didn't start. So I think it's something electronic. I changed the relais infront off the gear selector but that didn't help either. So yes it looks like that the 90 is imbolised. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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18th Jan 2010 8:10pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6611  
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The 10AS immobiliser controls the earth path for the starter motor relay coil on a black/orange wire (aka "crank enable"), and will only provide that ground if the immobiliser is off.
To prove the immobiliser is the problem, provide a temporary ground to the starter motor relay coil ground and try to start the engine. It should start but will turn off within a few seconds as the ECU doesn't receive the correct code from the 10AS. |
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18th Jan 2010 8:23pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Thanks Martin, I'll try that tomorrow. Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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18th Jan 2010 8:27pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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I tried what Martin suggested and yes it started but directely shut down again. So I put the cables back as normal.
Then I tried the Disco 3 Hard reset. Pulling the cables off the battery and keep them together for a short time. That didn't help. So I gave up for a while leaving the cable off the battery and put them together so a long Hard reset. Then I remebered Lauries post. I have installed an early 1984 door without the interior light door open switch extension so after about 2 hours I tried again. With my foot I pushed in the door light switch then connected the battery cables. put the key in the ignition and pushed the remote buttons first both at the same time and then lock and then unlock. And then it started. 
Then I got confused I shouldn't need the remote and I expected the remote battery to be dead. So I did a following test I took the remote off the key set and brought it to the other side off the house approx 20m and with walls in between and still the 90 starts. 
So What happened? What did I do right to get it starting again? Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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19th Jan 2010 12:35pm |
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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897
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'Anti-theft' should be renamed 'anti-use'!
Glad you got it working  |
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19th Jan 2010 1:04pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6611
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Sounds like your immobiliser is not configured correctly - you need to set it to immobiliser only mode, not using the alarm functions (e.g. door switches).
I don't know if there is an "open" alarm mode you can use so you don't need the alarm remotes? |
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19th Jan 2010 2:09pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Their must be an open option as I can start it without the keyfob near the 90.
It looks al OK now but still don't know what happened. Currently it is starting when needed and it doesn't react on the key fob. i.e. It doesn't imbolise even when the door light sensors are pushed in and pressing lock on the keyfob. So I still don't understand what happened. Maybe to do with humidity? It's garaged now. (no problem). It was freezing before (no problem) but it was just above 0 and wet for a few days when I had the problems. I know my 90 had swimming lessons that's why it was an UK insurance write off. Brown water has been to roof height on the drivers side but not been to the battery It killed the original ECU.
So I would love to know what really happened. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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22nd Jan 2010 10:04am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Problem solved new alarm ecu. There were sign off brownish water in the ECU. We knew the 90 had swimming lessons but as it worked before we thought the alarm ECU would be OK.
Problem solved and my tax free TD5 is now road legal. 
So now the real work can start, making it my off-road toy. Starting with installing my lockers from the Camel and then put some protection on: i.e. Snorkel, side bars and roll bars. Still have to decide if I put the 235 85 BFG MT's on or the Goodyear G90 7.5 x 16. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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28th Feb 2010 11:08pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6102 
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BFG MT's!!! I've run with both and wouldn't go back to G90's... they're great when they're brand new, but once they have a few thousand miles on them they're rubbish. BFG's are much better wearing. (and look better too!  ) |
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3rd Mar 2010 10:16pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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The problem is I have both of them, the G90 are currently under my donor 90.
And the BFG's are still under my Camel in the museum. Click image to enlarge Both still have plenty of thread and both are better then the much to small tyres I have under my current road legal 90. Click image to enlarge I think I will put the G90's on first and as soon as I have time to strip the things I need from the Camel I change to BFG's. I love the BFG I had them on my Camel for about 45000 Miles and they are still only half worn. And good road behavior too much better then the Michelin XZL's that were on the Camel when I bought it. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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4th Mar 2010 7:44am |
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