With Electronic Controls

^ If the Heater/Vent/Air Conditioning (HVAC) Control Head and/or Programmer appear completely inoperative, refer to A/C System Check, and perform Chart #2 before proceeding.
Testing and Inspection
Chart #2 Blower Motor Turns on But Cannot Be Controlled

^ Refer to the Symptom Table for the appropriate diagnostic procedure(s).
Symptom Table