Toyota Corolla (E120): Inspection

1. Cooler thermistor no.1

  1. Check resistance between terminals 1 and 2 of cooler thermistor no. 1 At each temperature, as shown in the chart.

    Resistance:

If resistance value is not as specified, replace the sensor.

If resistance value is not as specified, replace the sensor.

2. Cooler and accessory assy

  1. Inspect blower switch continuity.

If continuity is not as specified, replace the air conditioner control

If continuity is not as specified, replace the air conditioner control assy.

  1.  inspect illumination operation.

    Connect the positive (+) lead from the battery to terminal 2 and negative (–) lead to terminal 3 then check that the illuminations light up.

If there is bulb not light up, replace the bulb.

3. Cooler switch hole cover

  1. Inspect switch continuity.

    Check the continuity between terminals while switch is pressed, as shown in the chart.

If continuity is not as specified, replace the cooler switch.

If continuity is not as specified, replace the cooler switch.

  1.  inspect illumination operation.

    Connect the positive (+) lead from the battery to terminal 4 and negative (–) lead to terminal 3 then check that the illuminations light up.

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

  2.  inspect indicator operation.
  1.  Connect the positive (+) lead from the battery to terminal 2 and the negative (–) lead to terminal 1.
  2.  Push the a/c button in and then check that the indicator lights up.

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

  1.  inspect dimming operation
  1.  connect the positive (+) lead from the battery to terminal 2 and the negative (–) lead to terminal 1 while press the switch.
  2.  Connect the positive (+) lead from battery to terminal 4 and then check that the indicator dims.

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

4. Blower resistor

  1. Measure resistance between terminals, as shown in the chart below.

If resistance is not as specified, replace the blower resistor.

If resistance is not as specified, replace the blower resistor.

5. Blower w/fan motor sub–assy

  1. Connect the positive (+) lead from the battery to terminal 2 and negative (–) to terminal 1, then check that the motor operation smoothly.

If operation is not as specified, replace the blower motor.

6. Heater blower motor relay assy

If continuity is not as specified, replace the heater blower motor

If continuity is not as specified, replace the heater blower motor relay.

7. Magnet–clutch relay

If continuity is not as specified, replace the magnet–clutch relay.

If continuity is not as specified, replace the magnet–clutch relay.

    Share this page:

    Other materials:

    Refueling
    Opening the fuel tank cap Perform the following steps to open the fuel tank cap: Before refueling the vehicle ● Close all the doors and windows, and turn the engine switch off. ● Confirm the type of fuel. ■Fuel types Unleaded gasoline (Octane rating 87 [Research Octane Number ...

    Inspection procedure
    1 Inspect transmission wire(slt) Disconnect the transmission wire connector from the transaxle. measure the resistance according to the value(s) in the table below. Standard: Measure the resistance according to the value(s) in the table below. Standard (check for short): ...

    Inspection procedure
    1 Check hazard warning signal switch assy Check the hazard warning switch continuity, as shown in the illustration and table. Standard: 2 Check turn signal flasher assy 3 Check wire harness (tvip ecu turn signal flasher) Disconnect the tvip ecu and turn signal flashe ...