Cooling Fan Operation Description
Precautions: Precautions for Cooling System · General safety (00)
Radiator cooling fan motors are controlled by ECM as follows.
| [A]: | High | [C]: | Low |
| [B]: | Middle | [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 higher than specified value of 1.1 MPa (11.2 kgf/cm2, 160 psi) and turns off when A/C refrigerant pressure is lower than specified value of 0.8 MPa (8.2 kgf/cm2, 116 psi).
Middle speed and high speed:
Cooling fan operates at middle speed when A/C refrigerant pressure is higher than specified value of 1.8 MPa (18.4 kgf/cm2, 261 psi) and turns to low speed when A/C refrigerant pressure is lower than specified value of 1.4 MPa (14.3 kgf/cm2, 203 psi).
Fail-Safe
Cooling fan operates at high speed if malfunction related to ECT sensor is detected.