Mazda 3 Quiz
HVAC

Evaporator Temperature Sensor Inspection [Full Auto Air Conditioner]

In this manual: HVAC
Vehicle general — 15Accessories — 111Body — 339Brakes — 71Drivetrain — 143Electrical — 58Engine — 251HVAC — 72Restraints — 15Steering — 32Suspension — 41
~1min read
NOTE:

  • Inspect the evaporator temperature sensor when it is installed to the A/C unit.

1. Set the fan speed MAX HI.

2. Set the temperature control at MAX COLD.

3. Set the RECIRCULATE mode.

4. Turn the A/C switch off.

5. Close all doors and windows.

6. Wait for 5 min

.

7. Disconnect the evaporator temperature sensor connector.

8. Measure the temperature at the blower inlet.

9. Measure the resistance between the evaporator temperature sensor terminals.


  • If the resistance is not as shown in the graph, replace the evaporator temperature sensor.

Test yourself

A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.