The Blower And Heater Controls And The A/C System Do Not Work
The blower and heater controls and the A/C system do not work
Probable cause: HVAC control malfunction
Do the heater control power and ground circuit troubleshooting Heater Control Power And Ground Circuit Troubleshooting
Also check for
HVAC DTCs Initial Inspection and Diagnostic Overview
Also check for
Blown fuses No. 12 (40 A) in the under-dash fuse/relay box
Also check for
Faulty blower motor relay
Also check for
Poor ground at G501; '07-08 models, '09-11 models
Also check for
Poor or loose connections at the terminals