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: HVAC control malfunction

Do the heater control power and ground circuit troubleshooting Heater Control Power And Ground Circuit Troubleshooting

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HVAC DTCs Initial Inspection and Diagnostic Overview

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Blown fuses No. 12 (40 A) in the under-dash fuse/relay box

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Faulty blower motor relay

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Poor ground at G501; '07-08 models, '09-11 models

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Poor or loose connections at the terminals