Toyota Corolla (E120): On–vehicle inspection

1. Inspect pressure switch no.1.

  1. Magnetic clutch control: inspect pressure switch operation.
  1.  Set on the manifold gauge set.
  2.  Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (–) lead to terminal 1.
  3.  Check continuity between terminals when refrigerant pressure is changed, as shown in the illustration.

If operation is not as specified, replace the pressure switch.

  1. Cooling fan control: inspect pressure switch operation.
  1. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (–) lead to terminal 3.
  2.  Check continuity between terminals when refrigerant pressure is changed, as shown in the illustration.

If operation is not as specified, replace the pressure switch.

2. Cooler compressor assy w/magnetic clutch

  1.  connect the positive (+) lead from the battery to terminal and the negative (–) lead to the body ground.
  2.  check that the magnetic clutch energized.

If operation is not as specified, replace the magnet clutch assy.

    Share this page:

    Other materials:

    Circuit description
    The airbag sensor assy center consists of a airbag sensor assy center, safing sensor, drive circuit, diagnosis circuit and ignition control, etc. It receives signals from the airbag sensor, judges whether or not the srs must be activated, and detects diagnosis system malfunction. Dtc b11 ...

    Inspection
    1. Thermostat Hint: the thermostat is numbered with the valve opening temperature. Immerse the thermostat in water and gradually heat the water.  check the valve opening temperature. Valve opening temperature: 80 to 84 c (176 to 183 f) Hint: if the valve opening temperatur ...

    Replacement
    1. Remove engine under cover rh 2. Drain coolant 3. Remove front wheel rh 4. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 5. Remove fan and generator v belt Turn the v–ribbed belt tensioner slowly clockwise and loosen it. Then, remove ...