The Climate Control Switches Do Not Work

The climate control switches do not work

Probable cause: Climate control switch communication line circuit malfunction.

Do the HVAC switch communication line circuit troubleshooting; with navigation HVAC Switch Communication Line Circuit Troubleshooting (With Navigation), without navigation HVAC Switch Communication Line Circuit Troubleshooting (Without Navigation)

Also check for

Climate control DTCs Initial Inspection and Diagnostic Overview

Also check for

Poor or loose connections at the terminals