Range Rover County LWB (LH) V8-4.2L (1993)
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Condenser Fan: Description and Operation
Operation With the Engine Off
The Engine Control Module (Z132) monitors fuel temperature and coolant temperature through sensors. When the ECM determines that fuel temperature
is above 70°C and coolant temperature exceeds 110°C after engine shutdown, the ECM will command fan operation for approximately 10 minutes. The
ECM turns on the fans by momentarily grounding the Fan Control Module (Z118) through the BG wire. When the timer unit is grounded, it starts a solid
state timer and begins to apply voltage from its terminal 8 to the Condenser Fan Relay (K109) through the WG wire. With the Condenser Fan Relay
energized, voltage from the Fusible Link (P119) is applied to the Condenser Fan Motors (M113, M121) through the relay contacts. The Condenser Fan
Motors are grounded through the B wire.
