The 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

Climate control DTCs

Also Check for

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

Also Check for

Poor ground at G401; with navigation, without navigation

Also Check for

Poor or loose connections at the terminals