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nortm



Member Since: 22 Feb 2017
Location: Oxford
Posts: 26
United Kingdom 1986 Defender 90 2.5 n/a Diesel PU Buckingham Blue
Hazard Switch
Hi All,

Re-wiring my 1986 LR90 2.5 NA, I’m struggling with 2 (new) 7 pin hazard switches YUF101490 like these:


Click image to enlarge
Everything works fine when I bypass the switch but not with the switch in the circuit.

On testing, I’m unable to get continuity between pin 8 and 7 in either on or off switch position.

Have I got duff switches or am I missing something?

Many Thanks,

Last edited by nortm on 23rd Mar 2023 6:28pm. Edited 1 time in total
Post #986542 23rd Mar 2023 5:41pm
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PaulMc



Member Since: 17 Jan 2009
Location: Kent
Posts: 486
United Kingdom 1989 Defender 110 2.5 TD HT Arles Blue
The Land Rover hazard switch is part number YUF101490

Lucas 30771 (152SA), although similar looking, is not listed as an alternative to YUF101490

So, I would guess that it isn't wired the same.

. Paul.
1989 Arles Blue 2.5TD 110 Hardtop
1999 Epsom Green Discovery II 4.0 V8i 'XS'

Last edited by PaulMc on 23rd Mar 2023 6:34pm. Edited 1 time in total
Post #986550 23rd Mar 2023 6:27pm
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nortm



Member Since: 22 Feb 2017
Location: Oxford
Posts: 26
United Kingdom 1986 Defender 90 2.5 n/a Diesel PU Buckingham Blue
Hi, yes, that is what I have (see post above). Thanks
Post #986552 23rd Mar 2023 6:29pm
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PaulMc



Member Since: 17 Jan 2009
Location: Kent
Posts: 486
United Kingdom 1989 Defender 110 2.5 TD HT Arles Blue
Have you got the pin numbers correct Question

This drawing shows the rear of the connector, which corresponds with looking at the rear of the switch -




The wiring should be, as below -




. Paul.
1989 Arles Blue 2.5TD 110 Hardtop
1999 Epsom Green Discovery II 4.0 V8i 'XS'
Post #986553 23rd Mar 2023 6:40pm
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TexasRover



Member Since: 24 Nov 2022
Location: Paris
Posts: 790
France 2002 Defender 110 Td5 DCPU Chawton White
Can you jump 7 and 8 to see if the switch is faulty? If it all works as it should you know it's a switch issue, no?
Post #986558 23rd Mar 2023 7:20pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3188
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
I have this wiring diagram.



Click image to enlarge 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #986566 23rd Mar 2023 7:52pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6478
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
I’ve seen this before, the similar looking switch for a Mini is wired differently inside and doesn’t work!  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #986567 23rd Mar 2023 7:55pm
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