Funny beeping noise from under dash

[Nascarcamping]

Every once in awhile I get a funny beeping noise while driving my coach from under the dash.

Its not my low air pressure buzzer, or my hydraulic oil alarm for the levelers, but its a very faint beeping noise, and only while driving... :?

[MASTERTECH]

can you here the beeping sound more when you are driving in the rain or is it all the time? usually this happens more in wet weather the moisture causes some sensors to close contacts when wet most often affected are ABS, oil and ATC sensors. the best fix for these issues is to pull the sensor harness off and check for corrosion then to clean the connector and put dielectric grease in the connector and reinstall then go for a drive and see if the beep stops. hope this helps.

[Nascarcamping]

Now, that you say that....you might be on to something here, because the beep only happens when it is raining... :?

[MASTERTECH]

the frist thing to check is all the outside sensor covers for moisture, ABS, oil pressure sensor on the motor, anything with a rubber boot just slide it back to see if water has made it in there. its best to dry it off and put dielectric grease right in the boot and slide it back on.