 | Home > Td5 > TD5 Relay id in ECU compartment |
 
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| wslr Member Since: 18 Jul 2010 Location: Wellington, Somerset Posts: 581  
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Usually 3 relays. One pump, one power to Powertrain ECU, one to glowplugs.
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7th Dec 2011 9:17pm |
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| Peter Member Since: 04 Mar 2012 Location: Kent Posts: 153 
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Just the answer I was looking for with my 2005 D90.
Been having starting problems and the suggestion from Gigglepin was to remove and replace each relay as the aren't the best, and cause problems. I was interested to know what they actually do. The starting or rather non starting problem appears to have ceased today after this probing. However would like to know if this is a common fault and if there is a longer term solution to these relays. Does anyone know if these are still the same set up and location in the latest Defender or has LR modified them and can I upgrade to that modification if any ? Thanks Peter |
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22nd Mar 2012 8:48pm |
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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897  
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A very nice main dealer electrician once cured a problem with my underseat relays.
He used a tiny pair of pliers to tighten the Lucar type connectors. He told me that bad contacts in the relay sockets was the cause of most electrical problems. He wouldn't even accept the price of a drink for his efforts. Thanks Conway Land Rovers.   |
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22nd Mar 2012 8:53pm |
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| Waldo Member Since: 18 Jul 2010 Location: Bit South of Manchester Posts: 240
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I believe that the Black relay is for the ABS, can't be 100% sure though
Will Defender 90 XS TD5 (03 Reg) |
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22nd Mar 2012 10:40pm |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5883 
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I have the yellow one and a black one but no ABS/TC etc (Jan 1999 Td5) 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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23rd Mar 2012 8:12am |
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| Paul_1978 Member Since: 08 Nov 2009 Location: South Yorkshire Posts: 384 
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If you do move / play with them, make sure you push the wires up towards the realys afterwards.
Like a previous post said, this is the cause of most of the problems, especially on the fuel pump relay. The contact between relay and crimp connection is not very solid and moves a bit when played with, then it will start to burn up and cause problems. |
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23rd Mar 2012 2:31pm |
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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670 
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The white wire with the green stripe or rings connected to pin number 33 on the black ecu plug is a ignition controlled power feed that you can tap into. Any white wire with a green stripe or ring can be used for this anywhere in the vehicle.
Pete. |
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25th Mar 2012 11:46am |
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| Steve B Member Since: 22 May 2009 Location: Warwickshire Posts: 587 
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Brilliant, Thanks Zinke.
Job for next weekend sorted. Steve |
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25th Mar 2012 7:04pm |
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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670
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That wire is only suitable for powering a relay though, you dont really want to be connecting anything to it direct.
Pete. |
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25th Mar 2012 7:42pm |
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| Peter Member Since: 04 Mar 2012 Location: Kent Posts: 153
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Usual British standard of wiring. Think this is where the Jap motors exceed in their reliability in my exeperience. Has there ever been an aftermarket fix for the relay faults ? As seems very common on TD5 's ? or is it a case of doing ones own re-wiring so you know its all ok. |
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29th Mar 2012 5:09am |
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