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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2009  
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Just in case you can’t remember where you read the Issue with the Instrument cluster, here it is https://www.defender2.net/forum/topic47486-90.html
Bottom of page 7, post by Martin. |
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8th Aug 2022 8:49pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Thanks Ianh, going to have a bit of time on it again in the morning with a multimeter and a bridge for the ipac pins. Will report back 2007 TDCi 90 XS
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8th Aug 2022 8:57pm |
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| MichaelE Member Since: 18 Jan 2020 Location: Crawley West Sussex Posts: 155 
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When you say you've checked the earths, have you physically removed them, cleaned the surfaces and refitted them? Or have you just given them a tug to see if they're tight? I say this because a couple of years ago I went through nearly 2 months of trying to track down complete electrical failure whilst trying to work outside in the endless rain we were having.
I had the instrument binnacle and fuse panel off and a multimeter stuck in to every possible contact and getting odd readings. Occasionally it would come to life for a few seconds then die. Sometimes when It had come to life and tried to start it, I would hear a momentary sizzle that I couldn't quite pinpoint. So one rainy day I was laying underneath having turned the ignition on and switched the wipers on so I could hear if it came to life. I tugged on the earth cable from the battery to the gearbox. Yes, it was tight. Couldn't move it. But in trying to move it I bent the tab that bolts to the gearbox a little. Then I heard the wipers operate for a couple of seconds then stop. Bent it back, same thing. I lay there and relaxed in peace as the rain mingled with my tears of happiness. Yes, the earth was bolted tight. I unbolted it and looked at the surfaces and they seemed perfectly ok. Nothing that would normally give me cause for concern. I cleaned them up with some wet & dry, refitted.........problem solved. You know what to do. Last edited by MichaelE on 9th Aug 2022 2:57pm. Edited 1 time in total |
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8th Aug 2022 11:23pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Thanks MichaelE, that's good advice and no I'd hadn't been to the lengths that you suggest so I need to do that.
Interestingly I had half an hour on it before work and when I initially turned the key the glow plug light came on..... A-ha I think we could well be on here and sure enough it started 1st turn and ran for all of 4 seconds and then cut out and on a restart attempt sure enough the glow plugs did not illuminate in the instrument cluster. Never seen anything like this before... 2007 TDCi 90 XS |
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9th Aug 2022 11:50am |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2009
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It does seem more like an earth or relay issue.
when you checked your relays did you remove them and made sure the terminals will be tight on reinsertion. |
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9th Aug 2022 4:30pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Relays is a job for the morning, ran out of daylight. I managed to bridge pins 3&4 on the ipac and checked cleaned one of the earth headers. No joy. Will report back. Thanks again 2007 TDCi 90 XS
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9th Aug 2022 8:52pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Well checked all the relays with a multi meter, cleaned and swapped for known working ones from other locations to the starter circuit and still dead - lights on, gauges up but no glow plug lights and no attempt to start.
Even without glow plug heating it would attempt to start right? Wonder what the significance of the lack of lights to the fault. Any thoughts anyone please? 2007 TDCi 90 XS |
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10th Aug 2022 3:35pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Spent today cleaning and reattaching earths, no change still no glow plug lights or an attempt to start.
Checked for shorts, none found battery drain a few milliamperes. Having already checked the relays themselves I checked the circuit with a multimeter, can anyone confirm for me that on the starter relay there is a permanent 12v on the brown and white, a 12v feed (red/white) delivered by the ignition switch when turned to crank and an earth provided by the ecu on the black and orange. Thanks… 2007 TDCi 90 XS |
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13th Aug 2022 10:02pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2009
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Check Earth connections at K108 and K109
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13th Aug 2022 10:29pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Thanks, I checked and cleaned the 2 earth headers on the engine side of the bulkhead (k109 is earth c0550) these were the last 2 to remove, clean and check. No change unfortunately.
I am beginning to suspect maybe a faulty 10as as I had a double horn beep when I attempted to lock the car from the fob and al doors were shut. The range on the fobs is poor also. Anyway to prove this theory? 2007 TDCi 90 XS |
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14th Aug 2022 1:00pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Okay so mis-lock double beep sorted, bonnet sensor had given up the ghost... starting issue remains.
Followed this thread and Martin's advice https://www.defender2.net/forum/topic83794.html to use a wire to bridge the relay terminals. Still no glow plugs, starter turns over but will not fire so guessing fuel pump or whatever else is immobilised. Had the meter on the 'ground' wire provided by the ECU and there is no continuity to earth when cranking. 2007 TDCi 90 XS |
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16th Aug 2022 11:10am |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2009
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Have you changed the fob battery? , a long shot but you said the fob range was low so it may not be transmitting well to the receiver near the ignition switch.
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16th Aug 2022 12:53pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
I'm will to try anything Ian, I'll stick some new ones in, the range on them has never been great ( standing about a meter away is about it) they've been in a year so prob overdue. 2007 TDCi 90 XS
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16th Aug 2022 1:04pm |
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| BIMbound Member Since: 09 Jan 2021 Location: UK Posts: 44 |
Back on the dead Puma again today
Independent garage came out and read the faults yesterday, nothing doing. Today, unlocked and went to turn the key having been left for a day and the glow plug indicator lamps came on which usually means bingo, key turned to crank and it ran for 3 seconds and cut. No more glow plug lighty. Both remote batteries swapped for new ones and a reset done (ignition turn to position 2 then off, battery negative disconnect, fob buttons held in after old battery removal, new ones in. Battery reconnected, re-sync done 4 lock presses) no change 
every other function of the 10AS is working can it really be messing with immobilisation? ECU? Been dead on the drive for 3 weeks and no further forward. 2007 TDCi 90 XS |
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20th Aug 2022 7:28pm |
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