KF - Testing Schematic
Fan Control Diagram:
Fan Control Relay Location:
BOTH FANS OFF
LFC Pin 13 ON
HFC Pin 31 OFF
LOW SPEED FAN ON
LFC Pin 13 OFF
HFC Pin 31 OFF
HIGH SPEED FAN ON
LFC pin 13 ON
HFC pin 31 ON*
* Or ACPSW medium pressure contacts closed.
NOTE: "ON" indicates the Powertrain Control Module is grounding the circuit.