MACK wrote: βSun Aug 20, 2017 12:31 pm
Not sure why my previous post appears three times.
maybe something to do with me being in a poor signal area.
As others have said and you, it's probably a bad connection. What mileage/ year is yours on? My advice probably only really applies if you manage to rule these out. However that said the wiring plug on the rack and the battety connections may only disconnect when the car is moved in a certain direction so still worth a check as a cost free measure. If i remeber correctly the ecu plug csn be reached with out to much hassle. intermittent faults can be a nightmare to accurately diagnose. I would try using inpa etc to monitor the rack and turn it incredibly slowly as it may fault in one tiny spot (maybe a couple of mm) and see if you can replicate it over and over. This would rule out the inertia of the car causing a disconnect and confirm it's in the rack itself. Easy to say but not do easy to do unfortunately.
Aha, I have managed to get it to replicate when the car is stationary so movement of a connection is unlikely? Also, if I turn the wheel to the left and restart the engine, it can cut out the EPS when returning to centre as well, it just doesn't cut out anywhere on the right side of centre.
The cars done 104k miles so I'm not shocked, I figure a rebuild would at least give me peace of mind, I know BBA offer a lifetime warranty on their rebuilds which is reassuring.
Edit: In fact, the column has been replaced with a second hand unit previously, to resolve a different EPS issue. INPA reads the build date of the column to be 5/03 so a very early model. In this case, I'm thinking the rebuild is just the simpler, safer option as it means I know everything is good.