 | Home > Technical > Defender 90 Puma. Bad connection rear of instrument cluster |
 
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| Andy730 Member Since: 12 Dec 2017 Location: Douglas Posts: 45   
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Hi Andrew,
First, download this file: https://www.4x4community.co.za/forum/attac...1458330603 And then search for “Connector: C1040L” this will give you ALL the pinout numbers of the plug. Then download this file: https://www.4x4community.co.za/forum/attac...1458330603 Scroll down to page 74, you should see the relative part of the circuit diagram. J100 (in this diagram is the C1040L connector) shows C1040R-3 and C1040R-4 the two wires that you need to link. Hope that this helps Andy Andy 2007 Puma Defender 2005 Volvo S60 T5 (for Sundays) 1998 MGF |
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7th Nov 2019 10:15am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605  
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Remove the instrument cluster plug, and with a paperclip or similar bridge pins 3 and 4. Leave the plug out of the instrument pack and see if you can now start properly.
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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7th Nov 2019 1:26pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11  
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Thanks guys for all your replies
 I will try tomorrow to figures this one out and let you know.
//Andrew |
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7th Nov 2019 7:43pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Hi Martin,
Tried the bridge and it started 1st time. now to breakdown the cluster to check the solder as per Andy's suggestion. Keep you all posted, Andrew |
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8th Nov 2019 8:42am |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Dear all
Following the tip from Martin, I had all the connectors soldered as well as the can chip and main chip. No luck... 
Tomorrow I will create a permanent bridge between the wires, not sure if there are any long term risks with this fix, but I will be able to use the car. Thanks to you all for your support - it's great to know that there are folks out there that are willing to provide support to others. 
Andrew |
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9th Nov 2019 1:40pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Hi Guys, Bridge the wires today and car starts every time. One thing is that I have lost all gauges and some of the engine warnings lights, milage etc. I have only cut the wires and joined them together before the Cluster plug.
I just wonder if they should still go through the plug to the cluster and be bridged- but this doesn't seem right to me??? Im not sure - but maybe the chips have been damaged during the soldering. Thanks for any thoughts //Andrew |
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10th Nov 2019 2:30pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605
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Andrew, post up a photo of the gauges with the ignition switched on please. I think you may had lost the permanent power feed.
1988 90 Td5 NAS soft top
2015 D90 XS SW |
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10th Nov 2019 2:45pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Dear Martin,
Went out in the dark and made a quick video (not quite Quinten Terrentino), but it shows how the dash board looks Thanks for your feedback. Andrew |
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10th Nov 2019 7:54pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605
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I've not had a chance to try to make my spare instrument pack do this, but I think you are missing one or more of the power feeds. The hard-wired signals work (illumination and indicators etc) but anything involving the microcontroller aren't - fuel gauge, engine warning lights.
Check fuses 5 and 15 under the steering wheels just in case these have blown. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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11th Nov 2019 6:54pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Thanks Martin,
checked the fuses and ok. Have left the cluster with the guy who did the soldering to check specifically if he has damaged the chip through over heating. should have more information around this tomorrow. //Andrew |
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12th Nov 2019 3:20pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Dear all, sorry for the long delay with this. turns out that the guy who did the soldering actually did fry the micro controller. I have now managed to get hold of a second hand IPAC same tear and SW / HW version. Everything now works with the exception of the yellow engine warning light, but Im guessing that this is due to a missing signal from the joined wires?
Have also found a garage over here who are fully kitted out with Landrover knowledge who will reset the the millage as per my original. |
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5th Jan 2020 8:49am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605
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No, the orange engine lamp (MIL) is unrelated to the joined wires. The engine ECU is commanding that lamp to be illuminated over CAN, it needs the fault codes read
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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5th Jan 2020 4:09pm |
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| Andrewdb Member Since: 21 Oct 2019 Location: Sweden Posts: 11
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Thanks Martin,
Ill check the fault codes at the weekend and come back to you. Andrew |
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7th Jan 2020 12:24pm |
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| Baytown Member Since: 30 Jan 2016 Location: Cairns Australia Posts: 83  
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Thanks Andy and Martin for this fantastic thread.
It’s a little old now, but I’ve lost the odometer and Speedo function and have intermittent function in my fuel gauge on my 2012 110. I’m using a HUD at present to manage my speed which I’ll probably keep as it’s great! The Transmission sender works as proven signal at the OBD port re speed via my reader, so the faults either in the loom after that , the connectors or my instrument cluster. My cluster has been modified with a gear display as I’ve an LS3 and 6 speed auto fitted, so your advice here has given me the confidence to strip my cluster to inspect the connections. I have inspected the connector at the rear of the cluster and think I see burning and slight damage at pin 1. I’m not sure if that’s earth or power as I can’t find a diagram of the layout. I’ll take another photo on macro and post. I’ve bought another cluster (2nd hand 2013) and I know it needs to be authorised by the relevant computer gear from the UK and a correct replacement levered connector which arrived today here in Tasmania from the Motherland, so I’ve most of the kit to help me start fiddling. There is no instrument tech anywhere near me on the island that I know of, so I need to do this myself. Wish me luck, and again, thank you! Click image to enlarge |
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24th Jun 2021 6:50am |
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