Operation

With the auxiliary circuits relay energized, the feed from fusible links 1 and 7 passes through the relay contacts and is connected to the passenger compartment fusebox on a WG wire where it passes through fuse 15.

From the passenger compartment fusebox, the feed is connected to header C0761 on an LGW wire. From the header C0761 the feed separates into two LGW wires which are connected to the LH and RH seat heater switches.

LH seat
From the LH seat heater switch the feed is connected on a US wire to the LH seat cushion heater. The feed passes through the thermostatic switch and the cushion heater and is connected in series on a B wire to the LH seat squab heater. The seat squab heater is connected on a B wire to earth header C0708.

RH seat
From the RH seat heater switch the feed is connected on a UK wire to the RH seat cushion heater. The feed passes through the thermostatic switch and the cushion heater and is connected in series on a B wire to the RH seat squab heater. The seat squab heater is connected on a B wire to earth header C0708.