Club 80-90 Forums

I have noticed that when I turn on the igniton the temp light comes on very dim and stays on, really hard to notice but it is on
any would like to get sorted ideas please
the temp gauge works fine and runs at its normal postion

does it not flash when you turn it on?

no just comes on very dim

Blade type fuses or ceramic?

just been out to check , they are blade

ok so late fuse board.
it could be something very simple or something quite involved.
Does the dimness disappear when you disconnect the switch on the header tank?

have not done that yet , so if I disconnect and turn on the ignition and check if they are still dim?

They?

ok , just been out disconnected the expansion tank wires , light is still on and very dim?
any other suggestions please
(they) was a miss spelling sorry

OK reads like you have a connection issue
This is an extract from a post in the archive from AngeloEVS

I would remove the Module 43 and check that you have +12V at the vacant socket connection (ignition on) and that the socket does connect to earth. The diagram shows the vacant socket connections for reference. The earth is at the crown cluster next to the fuse box.

Check that the socket connection marked 'temp sender' does connect to the left nut of the temperature gauge or you can short circuit the socket conection 'TEMP sender' to Earth - this should trigger the coolant led into continuous operation and confirm that the socket is indeed connecting to the temp gauge.

The other socket marked Level sender connects to the probe but its a hell of a long run to measure with a multimeter unless you attach a long piece of wire to the sender plug. The other side of the level sender probe connects to earth but, if 43 was working and you had an earth fault, you would have the continual flashing coolant LED problem and not the one you currently have.

You might also want to clean up your 14 pin connector in the dash pod.

ok understand the first bit
temp sender does connect to left nut of temp gauge (presume temp gauge on dash does this mean taking out the dash?
how do I short circuit it to earth?

with a piece of wire to an earth point (usually the earth crown)

presume temp gauge on dash does this mean taking out the dash?

no just the binnacle cover

ok thanks will try tomorrow night
the 14 pin dash pod connector is where ?

In the dash.
You can't miss it



There's a chip in the gauge that flashes the led...
but that's another story
good luck