Description & Operation: Notes
NOTE:
For component location and terminal identification not listed, see WIRING DIAGRAMS
.
ELECTRICAL COMPONENT LOCATION
| Component | Location |
|---|---|
| A/C High Side Temperature Sensor | Center Rear of Engine Compartment, in A/C Refrigerant Line |
| Coolant Temperature Sensor | Top Left Side of Engine |
| Cooling Fan No. 1 Relay | Left Side of Engine Compartment, Behind Windshield Washer Fluid Reservoir, On Wheelwell |
| Cooling Fan No. 2 Relay | Left Side of Engine Compartment, Behind Windshield Washer Fluid Reservoir, On Wheelwell |
| Cooling Fan No. 3 Relay | Left Side of Engine Compartment, Behind Windshield Washer Fluid Reservoir, On Wheelwell |
| Engine Fuse Block | Left Side of Engine Compartment, On Wheelwell |
| Maxi-Fuse Block | Left Side of Engine Compartment, On Wheelwell |
| Powertrain Control Module (PCM) | Behind Right Side of Instrument Panel, Top of Kick Panel |
| Puller Cooling Fan Motor | Center Front of Engine Compartment, Rear of Radiator |
| Pusher Cooling Fan Motor | Center Front of Vehicle, On Upper Radiator Support |
The Powertrain Control Module (PCM) controls both cooling fans by controlling 3 relays through 2 outputs. There are 2 modes of cooling fan operation, low speed and high speed. In low speed mode, the cooling fans are powered in series. Cooling fan No. 1 is energized by PCM and both cooling fans run at low speed. In high speed mode, the cooling fans are powered in parallel, which allows fans to run at high speed. Cooling fans operate only when ignition is in RUN position.