Job done!!!!!. simple, remove the ignition key completely. Although the key was in, and in the 'off' position, the computer is still working.

my mate has twice now jacked up the rear of his TD6 ( tyre check, then a wheel bearing check) and the bloody suspension refuse's to rise up. the first time it happened he got a bloke to come out and he soon reset it via his computer. As my mate does his own repairs, including tyre changes, this...

thanks Dave, whats a XYZ switch ? lol

thanks for that Dollydisco, i had an idea it was something electrical,job 4 the weekend !!

gearbox fault, two alternating green flashing lights on the dash appear sometimes, telling me i have a transmission fault, when they flash I can only get 3rd and reverse, can anyone share any info on this?