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[Drewomega]

Hi all,
After digging the car out of the snow AGAIN  the alarm went off and lasted about 2 minutes whereby it stopped.(Low battery maybe?) I put the car into reverse and the reverse sensor started a continuous tone only stopping when put into another gear obviously. The sensors are clear of snow. any ideas? Thanks

[Dave DND]

I know that many brands of sensors can be a little "errattic" in the seriously wet/damp/cold conditions.

Is this a problem that is only happening under certain weather conditions?

[pscocoa]

mine did exactly the same thing following bad weather over christmas. cannot resolve it - all components were checked so it is down to wiring - still doing it now if I reconnect the ecu.

Obviously water in electrics somewhere - VX also could throw no light on this

[Drewomega]

Hi Dave! This is the first time it has happened. Everything has been fine up until this morning. Thanks

[pscocoa]

if it is same as mine then you will need to disconnect to stop the noise - unit is on pillar behind spare wheel on mine.

[Drewomega]

Thanks guys! will have to check it out when the weather gets better as it is a handy tool. 

[Drewomega]

Ah! forgot to mention my outside temp sensor went haywire last week and was playing havoc with my heating/climate control. I disconnected it and checked with a DMM, ok, I then sprayed the plug/socket with WD40 and hey presto it is working perfectly. Sounds like the same damp/water ingress problem as the reversing sensors.

[Drewomega]

Well! jumped in the car this morning and put the car into reverse. No continuous reverse sensor noise! This and other similar issues must be down to damp/water ingress of connectors etc. Sun has been shining most of the day  8-) I wish other electrical problems were this easy to fix.