HVAC System Test (ATC)

Test 1 - Test 3:

Test 4:

SYMPTOM
ATC SYSTEM TEST

POSSIBLE CAUSES
- Attempt to communicate with the PCM, BCM, & ATC
- Check for HVAC related DTCS in the PCM & BCM
- Monitor the DRBIII(R) active DTCS
- Check for HVAC related DTCS in the PCM
- A/C system testing