The relay box is on the left hand side of the Drivers Instrument Panel, it should have a reset button and 5 amp fuse on its front.
The 2 wires terminate in a 5 way flying plug A and B of the plug, also connected to the plug is a buzzer or alarm, pins C and D, The power for the box comes direct off the vehicle batteries (personally I would use a fused lead), the positive and negative terminate in a 2 pin flying socket ON top of the relay box. The feed to the annunciation that flashes the light on the remote indicator unit comes from the bottom of the relay box via a 2 pin flying plug pin A.
There are 4 air bleed screws, 2 on the radiator, one on the pipe across the top of the engine and one at the rear of the heat exchanger or oil cooler. Let as much air out as you can, and then run the engine, more air will bleed off as the coolant expands, be careful not to overheat the engine with the Air inlet covers raised, and do not run the engine at all with the radiator up, unless absolutely imperative.
Diana