HVAC System Test - MTC

Test 1-4:

Test 5:

Test 6:

SYMPTOM
HVAC SYSTEM TEST - MTC

POSSIBLE CAUSES
- Attempt to communicate with the PCM/ECM, the BCM, and the FCM
- Check for HVAC related DTC's in the PCM/ECM
- Check for BCM DTCs
- Check for FCM DTCs
- Check for active HVAC DTCs and system tests fault messages
- Check for HVAC related DTCs in the PCM/ECM
- Manual A/C system test