July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Component Tests and General Diagnostics

If temperature cannot be adjusted with the TEMP knob/button on the control panel, the following could require service:
1. Blend-air door binding.
2. Faulty blend-air door motor.
3. Improper engine coolant temperature.
4. Faulty Instrument Panel Control.
4. Refer to the appropriate LH Body Diagnostic Procedures.