Radiator Fan: Function
The operation of the radiator fan is controlled by the ECM, depending on the signals from the engine coolant temperature sensor, vehicle speed sensor, A/C switch, and A/C mid pressure switch.
NOTE:
Refer to the
Service Manual for operation of each model.
| A/C compressor | A/C mid pressure switch | Engine coolant temperature | ||
|---|---|---|---|---|
| Rising: below 95°C (203°F) Lowering: below 93°C (199°F) | Rising: between 95 and 101°C (203 and 214°F) Lowering: between 93 and 99°C (199 and 210°F) | Rising: over 102°C (216°F) Lowering: over 100°C (212°F) | ||
| OFF | 0% | See figure (1) | 100% | |
| ON | OFF | See figure (2) | 100% | |
| ON | See figure (3) | 100% | ||