Right had a look again this morning and found the other 2 pin connector

I suspect the reason there is not a 5 pin with the Multiscan is because you don't need one . They supply you with a nice 2 pin link lead

I linked the 2 pin plug which was for Engine Management... no flash codes

I then linked pin 3 and 5 on the 5 pin connector and got:

15 Wheel speed sensor right rear - open circuit
54 Relay inoperative

According to Autodata the relay in not accessible as its built into the unit. Tried removing multiplug and refitting in case of bad connection........is this looking like a new unit?

Many thanks for all the replies

Peter