hi, the instrument cluster in my mates 03 1.8 focus has went crazy and had a mind of its own the past few months, ( beeping, displaying 7000 revs, round at 140 mph and warning lights flashing, no millage display fuel gauge dead ) i see its a very common issue so we went to the scrappy and got a set from a 05 plate 1.6 model, plugged them in and the temp gauge, millage and rev counter worked fine, but fuel gauge showed zero, petrol light on, abs light on, handbrake light on even though it was off, management light on...could it be that it was maybe another duff instrument cluster or could the problem be elsewhere, this has all come about since the inside of his car is soaking and we cant find the leak ( thats a different issue though ) can a "damp" ecu cause this ? i also see when i lifted his driver footwell carpet up abit there are a few wires earthed to the floor that are all wet.

also am i correct in thinking that the ecu is behind the panel in the right of the drivers footwell ?

any suggestions appreciated

cheers

The ECU is behind the panel below the steering wheel.

I did a post recently whete I put up a PDF file on howto access and remove the ECU.

if you can hold on until thr morning I'll repost it here unless you can find it yourself in the meantime.

Usually water in the footwells is due to a failed pollen filter seal.

hi mate, we replaced the pollen filter seal but problem persists, the volume of water in the cars beyond a joke, i had my head in the drivers footwell and looked up above the acc pedal in the corner and water was running down that area so god knows, would a wet ecu affect instrument cluster ?

ta

The pollen filter seals are rubbish and easily deformed on fitting.

Try some silicone sealant around it.

Water into any electrics will cause problems like you stated.

Check the earth points for corrosion and als the glovebox fuse panel.

A wet ecu is going to cause all kinds of electricle mayhem,the instrument cluster is probably the first item to start glitching:(

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