This unit is attached to the back of the ecu box in the engine bay, and is held on by a small nut.
To remove this relay:
1. Undo the nut (8 or 10mm)
2. Check that there is not a locking pin across the 2 red pins
3. Pull the red tab out and wiggle the relay loose.
Once removed you can check to see if the relay is faulty by bypassing it. This is done by connecting up a wire to pin 5 and 8 on the wiring loom connector. This should mean that when the ignition is on the fuel pump will constantly be running.
smighall has attached the following image:
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