Blower, heater controls, and A/C do not work
Diagnostic procedure
  1. Climate control power and ground circuit troubleshooting
Also check for
  • HVAC DTCs
  • Blown fuse No. 16 (7.5 A) in the driver's under-dash fuse/relay box
  • Faulty blower motor relay
  • Poor ground at G401:
  • There is navigation
  • Without navigation
  • Cleanliness and tightness of all terminals