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Electromagnetic Wave :-h
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As I recall, the condenser fan only operates when the A/C is on. When A/C is off, only the radiator fan kicks on in high speed when temp > 190F through Fan Relay 1. When A/C is on and temp is <190F and refrigerant pressure is below 220-psi, both fans run on Low speed though Fan Relays 3 & 2 as long as the A/C is ON. When A/C is on and temp >208F or refrigerant pressure is >220psi, both fans run on High speed. Radiator fan via Fan Relay 1 and Condenser fan through Fan Relay 3. Fan Relay 2 then provides the Condenser Fan Motor ground for high speed.

A blown 5A FAN RLY fuse (lower left multi-fuse in center console fusebox - #19 in the RADPHYS .jpg) would kill them both.
 

·
Electromagnetic Wave :-h
Joined
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15,688 Posts

·
Electromagnetic Wave :-h
Joined
·
15,688 Posts
Never assume;)

Only 2 Fans. Fan Relay 2 toggles between putting the 2 fans in series (1/2 speed on both) and grounding the Condenser fan for full speed.

Might try an ECM reset.
 
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