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Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Help - Lights out!

Hi,

I have a 2000 TD5 CSW and the headlights have stopped working I have main flash though.

I have replaced the switch (its lasted about one month) and they have gone off again, new switch still no lights.

I have 14v at the fuse under the seat when engine running and 10v at the live on the switch.

I have pulled the pink relay and it looks fine, cleaned contacts and put back in, could not find power between holes 2 and 8 on relay board.

I am at a loss................ help!!

18th Mar 2018 12:30pm

4RF RDS

Member Since: 19 Jul 2015
Location: Ottawa
Posts: 898

2000 Defender 110 Td5 XS CSW Epsom Green

Its likely the switch once again (sadly). It gets full voltage and amperage through the switch which causes it to burn out. You can hot wite the olug by bridging it iwth a single wire. If it works its the switch. Install a relay wiring harness like this when you change the switch ine more time. This takes all the voltage and amperage off the switch and it is a simple plug and play.

Good luck 👍

http://www.paddockspares.com/boomslang-per...-loom.html 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

18th Mar 2018 3:51pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Thank you, I tried bridging the switch contacts together but still had no lights?

Do you have any other ideas or is it an auto electricians role now?

Many thanks

18th Mar 2018 4:18pm

4RF RDS

Member Since: 19 Jul 2015
Location: Ottawa
Posts: 898

Follow the wires to each light as well as the ignition switch and ensure they are all plugged in properly. Switch the relay and fuse as well just to be sure.

Click image to enlarge 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

18th Mar 2018 4:32pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Okay so I just tried bridging the wires together again and no lights but;

Brown wire had 11v to it but when I connected it to the other two it lost all the voltage to zero!

Does this shed any further light on it?

18th Mar 2018 4:38pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Even more confused now as following the diagram above, hopefully correctly.

I have 12v at the switch at the brown wire

bridged with the blue wire 12v

bridged with red wire 0v

fuses appear fine just checked them so is there a problem on the red wire which goes to the fuse box passenger compartment?

Am i just confusing myself?

18th Mar 2018 5:13pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

part 2

Click image to enlarge

18th Mar 2018 5:31pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

thanks but no idea where the headers are etc or what I am looking for now.

If anyone can explain what I need to test and where that would be useful, feeling a little silly!

18th Mar 2018 5:33pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

thanks but no idea where the headers are etc or what I am looking for now.

If anyone can explain what I need to test and where that would be useful, feeling a little silly!

18th Mar 2018 5:42pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge

18th Mar 2018 6:21pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Once again great information and help, just think I am going to end up taking lots of bits off and then struggling though.

I have no real idea of what I am doing other than finding it does not work.

If there is power to switch brown wire could it actually be fuse, relay or switch or more likely a break or earthing problem in the headlight wire?

18th Mar 2018 6:30pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Start by checking light fuses 11.12, 15,16, 7, 17, 18 in passenger compartment fuse box

18th Mar 2018 6:45pm

Iain Defender

Member Since: 18 Mar 2018
Location: North
Posts: 11

Checked all okay.

18th Mar 2018 7:06pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

If main flash is working, earthing at headlight wire is ok as both lamp filaments use common earth

18th Mar 2018 7:11pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge

18th Mar 2018 7:37pm

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