hope this helps others fault fixed but only after investigation of speed sensor some are located on gearbox others are at the A B S sensor from the wheel, mine was attached at abs sensor no fault was detected.
fault finaly rectified when due to a grey wire that was bieng rubbed by the clutch cable at the right hand wing as you look at the engine bay was sorted
grey wire was in a loom of ten wires hope this of help
doug scotland, April 2010
