Blower, Heater Controls, and A/C Do Not Work
Blower, heater controls, and A/C do not work
Diagnostic Procedure:
Climate control unit troubleshooting Testing and Inspection
Also check for:
- HVAC DTCs Initial Inspection and Diagnostic Overview
- Blown fuse No. 30 (10 A) in the under-dash fuse/relay box
- Poor ground at G506
- Cleanliness and tightness of all terminals