Thread: Fuel light
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Old 26-10-15, 19:58
Pleiades Pleiades is offline
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Quote:
Originally Posted by Bishopsfinger View Post
Hi all! Please redirect me if I'm in the wrong place...My fuel light and trip refuses to reset and so the light stays on,sometimes flashing.Is this a common occurrence and how do I go about resolving it?
Quite often this sort of thing is a bad connection, loose connector or an abraded wire somewhere.

The fuel gauge circuit has a built in diagnostic function. If it flashes 4 times then goes off for 3 seconds (in a repeating cycle) it signifies a short circuit and if it flashes 8 times and goes off for 3 seconds (repeating) then it means there is an open circuit fault.

First thing I�d do is check the connectors in the circuit, particularly the one on the fuel pump housing under the tank. If that doesn�t cure it then you can check the resistance between the green/white and black wire terminals on the pump housing with a full tank and an empty tank. There should be full continuity or a very small resistance when it�s full and a high resistance when empty. AFAIK there aren�t any actual figures given in the service manual, but I�ll have a look and check when I get a minute.