Chariot/Galant electrical problem

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mhs@alwerner.demon.co.uk - 08 Dec 2007 10:43 GMT

Good morning world,

I have a Mitusubishi Chariot build around 1995 which has ro relays
attached to the positive battery terminal,
one being market as "Fan relay 40 Amp's" the other as "Glow Plug relay
80 Amps".

Now, while I can understand the circuit now, I have problems to
understand how those 2 "relays" work.

They are three wire devices, but have only two contacts, I can see no
contacts for a coil etc. can somebody tell me how these relays work ?
Are they perhaps solid state ?

Your help and guidance is much appreciated ?

Kind regards

Al:
----

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Bob Shuman - 08 Dec 2007 16:14 GMT

I am not familiar with your particular vehicle, but a three wire, two
contact device is not uncommon. (Since you indicate there are contacts, I
doubt it is a solid state relay.)

I would suggest that one wire is to control/energize the solenoid, while the
other two, probably heavier gauge wire , would be to each of the contacts so
therefore carry the heavier current to the load.

The return path for the current to energize the solenoid is usually through
the vehicle's chassis/ground. If there is a metal mounting bracket secured
by a metal bolt or screw, then check the resistance from that mounting
bracket to each of the wires to determine which is the solenoid control
wire.

Good luck with resolving whatever your problem is with the vehicle.

Bob

> Good morning world,
>
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> Al:
> ----

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Nirodac - 09 Dec 2007 08:09 GMT

> I am not familiar with your particular vehicle, but a three wire, two
> contact device is not uncommon. (Since you indicate there are
[quoted text clipped - 35 lines]
>> Al:
>> ----

Are you sure they are not the FUSES that feed the relays in question. If
you have a voltmeter you can measure the input and output of these
"relays" to see if they switch on or off when the engine is running.

Reply to this Message

Al - 09 Dec 2007 14:46 GMT

> > I am not familiar with your particular vehicle, but a three wire, two
> > contact device is not uncommon. (Since you indicate there are
[quoted text clipped - 43 lines]
>
> - Show quoted text -

Thanks Bob,

I must have been partial blind, when I removed the burned out
relay ... off course
now I can see clearly again. I was looking for a copper bar for the
return path and
nor a bit of rosted iron plate as I had found.

Thank you for taking your time to explain the matter to me in detail.

Your help is much appreciated.

Kind regards

Al:

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Al - 09 Dec 2007 14:48 GMT

> > I am not familiar with your particular vehicle, but a three wire, two
> > contact device is not uncommon. (Since you indicate there are
[quoted text clipped - 43 lines]
>
> - Show quoted text -

Hi Nirodac,

Thanks for taking your time to reply to my request,
all is now best understood .

Many thanks

Kind regards

Al:

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