Strange electrical problem

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Strange electrical problem

Postby HJ2 » Mon 18.06.2018, 12:12

Hello all,

As I was happily driving around on the motorway in the pouring rain with the top down and my head wet from the rain, a peculiar thing happened:
The interior fan completely stopped working, as did my cigar lighter.

When I got home I looked-up the corresponding fuse for the lighter, but it looked OK and gave 0 Ohms resistance!

Are these components somewhere tied together on a joint fuse or relay?
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Re: Strange electrical problem

Postby GeoffSmith » Mon 18.06.2018, 12:45

Check your windows and door mirrors…

http://wikilec.com/images/3/38/MJ25-01a ... f_2%29.gif
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Re: Strange electrical problem

Postby HJ2 » Mon 18.06.2018, 13:14

Thanks, Will do!

And meanwhile I will locate the ignition relay as well :-(
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Re: Strange electrical problem

Postby GeoffSmith » Mon 18.06.2018, 14:24

Calypso Red S2 #417

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Re: Strange electrical problem

Postby HJ2 » Mon 18.06.2018, 14:28

:lol: Allready printed on my desk 8)
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Re: Strange electrical problem

Postby HJ2 » Wed 03.10.2018, 08:20

I stuck my head in the sand, but the problem rises again...
Time to replace it I'm afraid. Is the relais a common component or do i need to do the dance to get an unobtainium part?
While I'm at it, I might replace the indicator switch as well as it tends to stick when indicating & turning left...
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Re: Strange electrical problem

Postby Steve A » Wed 03.10.2018, 09:10

When my electrical coolant pump seized it also buggered the relay which I replaced,
you should easily find a replacement it's just knowing what to ask for, they all look the same
but there are differences between them, different amps and pin configuration.
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Re: Strange electrical problem

Postby peteoddcar » Thu 04.10.2018, 23:00

Pretty standard switching relays on the M100. I think they were made by Maresa from Spain but can be replaced by any generic 5 pin 30amp n.c. / 40amp n.o. with the din pin configuration and a resistor ( not diode ) between 85&86 terms



Fords in the same era used a different pin configuration so be careful, the timer relays in the M100 are nearly all unique Lotus parts made by Pecktron of Derby ( also made beer pump controllers,useless info for those who recall having their pint :cheers: accurately measured in half pints in the 80’s and 90’s)
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Re: Strange electrical problem

Postby Saltire » Fri 05.10.2018, 07:49

HJ2 wrote:I stuck my head in the sand, but the problem rises again...
Time to replace it I'm afraid. Is the relais a common component or do i need to do the dance to get an unobtainium part?
While I'm at it, I might replace the indicator switch as well as it tends to stick when indicating & turning left...


HJ, I wouldn’t give up on the indicator switch. I had what sounds like a similar problem recently, and I solved it by dismantling the switch and twiddling with (technical term) the self-cancelling mechanism. If all else fails, I have an indicator switch somewhere here that you’re welcome to.

By the way :offtopic: I think my front calipers will be OK, thanks. There’s a tiny bit of wear in one of the bores, but nothing serious. The worst part is that the original pistons, which are scored, were coated, and the replacements SJs have supplied are not coated :?
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Re: Strange electrical problem

Postby HJ2 » Fri 05.10.2018, 08:35

thanks all!

I'll give it a go as soon as the garage is finished 8)
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Re: Strange electrical problem

Postby HJ2 » Mon 22.10.2018, 12:10

Well, Garage not finished, but it got cold without blower, so i just bought one with blind faith in LEC knowledge....
Only to find out that: You can have blind faith 8)

Everything up and running again.
Next: Fix or replace the faulty indicator stalk :oops:
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Re: Strange electrical problem

Postby rip » Mon 22.10.2018, 17:13

Try Autovaux for an indicator stalk. The Elan uses the same as the Cavalier(Vectra)/Calibra of the same era...& probably other Vauxhall/Opels too.
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