Extended height setting

Just a quick one! Now and again my 2000 P38 rises to the flashing top light on the EAS switch. This tells me it's going up to the highest setting, even beyond the wade height.

Handbook tells me it'll do this if it gets grounded so it will tip toe out of whatever it's in. Problem is it happens when it's driving along the road or if it's just come back from cruise setting.

Does anyone know whether there is some independent sensor that tells if the car is grounded (which it isn't) or is it most likely to be a faulty height sensor?

Normally I can 'catch' it by pressing the down button before it actually goes up! (ooh err)

hippolover said:

Just a quick one! Now and again my 2000 P38 rises to the flashing top light on the EAS switch. This tells me it's going up to the highest setting, even beyond the wade height.

Handbook tells me it'll do this if it gets grounded so it will tip toe out of whatever it's in. Problem is it happens when it's driving along the road or if it's just come back from cruise setting.

Does anyone know whether there is some independent sensor that tells if the car is grounded (which it isn't) or is it most likely to be a faulty height sensor?

Normally I can 'catch' it by pressing the down button before it actually goes up! (ooh err)

Click to expand...

Mine does something similar too, although not all the way up to extended height, always after returning to standard height after cruising.

As far as I can gather extended mode is triggered by a combination of extreme height sensor readings and loss of traction at one or more wheels, which it takes to indicate that the car is grounded; so I guess if these conditions aren't actually being met it could be a faulty reading from either a height or abs sensor, or a combination of both. If you've got snow/ice I suppose a faulty height sensor reading alone could trigger it, if the abs/tc senses loss of traction at any point.

I've found using the eas inhibit switch once at cruise height and then manually selecting standard height when needed gets round the problem.

To be honest it's done it all through the summer as well. I too often hold it on the inhibit switch but it'll do it whenever it's switched back in the auto setting. Often when turning left as well so I'm thinking sensor(s). Maybe check them come the spring.

Driver pack will cause this problem as will bad connections. Unplug and clean all the connectors in the EAS box and then read to faults to see if a sensor is giving intermittant false readings.

Try a new diaphragm in the valve block and a new over pressure sensor, mine did the same and it cured it, hope this may help,