Too Hot in Vehicle

Too Hot in Vehicle

Diagnostic Aids

The Mitsubishi scroll type A/C compressor carries an internal thermal cut off switch. The thermal cut off switch normal operation is to open and disable the compressor under extreme load and temperatures above 155°C (311°F). The internal thermal cut off switch is non-serviceable.

Test Description

Step 1 - Step 10:

Step 11 - Step 21:

The numbers below refer to the step numbers on the diagnostic table.
7. This test is to ensure A/C system is operating normally.
10. The aspirator tube connects to the rear of the HVAC control module. The aspirator tube is used to draw air past the inside air temperature sensor.