STORED DTCs - ATC AND MTC SYSTEMS
The HVAC System Test provides a means for diagnosing stored DTCs. The HVAC System Test consists of multiple diagnostic procedures which cover:
- A/C System Performance
- System Controls
- Air-door Functionality
Either perform the entire diagnostic procedure for a complete system test or perform an individual procedure if diagnosing a specific symptom, condition, or DTC. Refer to DTC-Based Diagnostics/HVAC - Standard Procedure .