Without Climate Control

The blower and heater controls and the A/C system do not work

Probable cause: HVAC control unit malfunction

Do the HVAC control power and ground circuit troubleshooting HVAC Control Power and Ground Circuit Troubleshooting

Also check for

HVAC DTCs How to Troubleshoot the Heating and A/C Systems (Without Climate Control)

Also check for

Blown fuse No. 16 (7.5 A) in the driver's under-dash fuse/relay box

Also check for

Faulty blower motor relay

Also check for

Poor ground at G401; with premium audio Harness Locations, without premium audio Harness Locations

Also check for

Poor or loose connections at the terminals