when a tyre pressure light comes on how do you know which one is faulty if the tyre pressures are fine? .....
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6 years ago
TPI
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6 years ago
Does the tyre monitor *actually* have pressure sensors, or is it the type that works by sensing different wheel speeds over time?
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6 years ago
Yes, it took me a little while before I realised how they work without a pneumatic slip-ring!
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6 years ago
When it happened to me I just recallibrated the system and monitored the pressures manually for a couple of days.
Perhaps tyre wear on the front axle can increase the speed of the wheels sufficiently to trigger the warning.
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6 years ago
don't know I was viewing a 2009 mustang and I assume there is a Tx unit in the wheel at each valve ....
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jeezus that looks complicated!
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6 years ago
think I will look for an 05 or 06 which doesn't have them .......
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6 years ago
bugger it must be the first type...stuff that ....
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6 years ago
have to go for a 2010 or later to get normal valve ones......stuff it 2005
2006 doesn't have ANY will look for one of those ......- Vote on answer
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6 years ago
bloody band type on the car I looked at...no way messing about with these .....
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6 years ago
I see... How do rain sensors work? I've tried tapping the windscreen to simulate rain, but the wipers don't come on.
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6 years ago
I assume they detect reflection from drops on the glass, mine only operates in a small area behind the driver's mirror
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6 years ago
In message , Graham. writes
They don't, and I don't know what was wrong with the switches or knob that gave me control of the wiper speed.
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6 years ago
Mine does work pretty well. It is good for those days when the rain almost stops then starts again or when you get sudden spray from a wagon as you pass and then much less again.
SteveW
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6 years ago
Mine too, sometimes the sensitivity for the intermittent wipe needs a nudge up or down a notch, but I never switch the wiper stalk to "off" now.
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6 years ago
On 11/07/2017 22:06, Steve Walker wrote: It is good for those days when the rain
You aren't supposed to drive down the railway
Bill
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6 years ago
I was thinking more of the covered type and the horses hooves splashing water from the puddles in the potholes :)
SteveW
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6 years ago
I think mine (on a VW) use IR LEDs and an optical sensor. Seem to work pretty well.
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6 years ago
The sensor is usually behind the rear view mirror surrounded by a blacked out area.
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6 years ago
They measure the amount of light that leaks out of the screen from an IR light source, It changes when there are raindrops on the surface, The sensor is usually behind the rear view mirror.
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6 years ago
Don't they actually look at back scatter - the amount that returns to the sensor? Occasionally if mine has been left turned on, the angle of the sun can trigger it on a dry screen.
Chris