Blower, Heater Controls, and A/C Do Not Work

Blower, heater controls, and A/C do not work

Diagnostic Procedure:

Climate control power and ground circuit troubleshooting Climate Control Power and Ground Circuit Troubleshooting

Also check for:

- HVAC DTCs Initial Inspection and Diagnostic Overview
- Blown fuse No. 30 (7.5 A) in the driver's under-dash fuse/relay box
- Poor ground at G503
- Cleanliness and tightness of all terminals