Followed advice found on the net and diagnosed an ABS fault.

Initially I was getting two faults but then changed the front nearside sensor and have one remaning fault.

With pins 4 and 8 shorted together on the OBD port I get fault 63. That says Solenoid Valve Relay.

I've found the relays above and tried new ones. Am I looking at the solenoid valve itself (within the modulator)?