2004 V70 clutch position sensor required

[blakeboro]

Does anyone have one of these, perhaps on a vehicle they're breaking. Don't really wanna pay 50 quid dealer price. Thanks

[cheshired5]

Taking apart and cleaning the carbon tracks with electrical contact cleaner fixed mine for free.

[100K+]

CPS is a simple potentiometer. As Cheshired5 says cleaning it may fix for free. but be careful the tracks are delicate. If it don't and you can solder a cheap solution is to solder a resistor in parallel within the switch. This bring the switch back into "range"
Below is the dogs breakfast I did on my old T5...but it worked for several years until I sold it.
You need to calculate the resistor value first ( I got mine from Maplins - 10p)
Lots of info on the web and I think also on V70 pre 2007 section of this site.

Good luck

Bob

[ma70]

Indeed the ceramic substrate is pretty delicate, I managed to break a corner off mine when I was trying to clean it & also now have a resistor in it's place. I think I need to re-calculate though as still get the occasional "engine service required" above 60mph & the cruise hasn't worked since (I understand that dipping the clutch with cruise engaged would be foolish with the resistor "mod", so that's worth noting if you're used to using a clutch tap to disengage cruise.)

[100K+]

Originally Posted by ma70

(I understand that dipping the clutch with cruise engaged would be foolish with the resistor "mod", so that's worth noting if you're used to using a clutch tap to disengage cruise.)

Don't think this is correct. The switch is a simple potentiometer which is giving a reading outside a certain range, which the car reads as the clutch is in the wrong place so cruise control has to be disabled. The resistor brings the switch back into "range" and allows all functions it previously had to be reinstated.


See here for info + more links
https://www.volvoforums.org.uk/showt...esistor+maplin


Cheers
Bob