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: Climate control unit malfunction

Do the climate control power and ground circuit troubleshooting Climate Control Power And Ground Circuit Troubleshooting

Also check for

HVAC DTCs Initial Inspection and Diagnostic Overview

Also check for

Blown fuse No. 36 (10 A) in the driver's under-dash fuse/ relay box

Also check for

Poor ground at G504 Connector and Harness Locations

Also check for

Poor or loose connections at the terminals