Cooling Fan Operation Description
Precautions: Precautions for Cooling System · General safety (00)
Radiator cooling fan motor is controlled by ECM as follows.
| [A]: | High | [C]: | Low |
| [B]: | Mid | [D]: | OFF |
The following controls are also performed when A/C switch is ON.
Low speed:
Cooling fan operates at low speed when A/C refrigerant pressure is more than specified value of 1.1 MPa (11.2 kgf/cm2, 160 psi) or vehicle speed is lower than 30 km/h (19 mile/h).
Middle speed:
Cooling fan operates at middle speed for a given time (2 sec.) when fan speed changed to high from low.
High speed:
Cooling fan speed changes from low to high speed when A/C refrigerant pressure exceeds specified value of 2.0 MPa (20.1 kgf/cm2, 290 psi).
Fail-Safe
Cooling fan operates at high speed if malfunction related to ECT sensor is detected.