Diesel Data: Automotive Repair

The Blower and Heater Controls and the A/C System Do Not Work (With Climate Control)




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 How to Troubleshoot the Climate Control System (With Climate Control)

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