Symptoms

IMPORTANT: Review the system operation in order to familiarize yourself with the system functions. Refer to HVAC Blower Controls Circuit Description.

VISUAL/PHYSICAL INSPECTION
^ Inspect for aftermarket devices which might affect the operation of the HVAC System. Refer to Checking Aftermarket Accessories
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ If equipped, inspect the passenger compartment air filter for complaints of insufficient air flow.

INTERMITTENT
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in Diagrams.

SYMPTOM LIST
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Blower Delay
^ Blower Motor Inoperative at Any Speed
^ Blower Motor Inoperative in Auto Mode
^ Blower Motor Always On
^ Air Temperature Control Inoperative
^ Air Temperature Control Inoperative - Passenger
^ Heated Air Inoperative
^ Defrost Air Inoperative
^ IP Outlets Inoperative
^ Air Recirculation Inoperative
^ Air Recirculation Always On
^ Cooling Insufficient, A/C System
^ Defrosting Insufficient
^ Heating Insufficient
^ Noise Diagnosis
^ Cold Drafts on Floor Odor Diagnosis