No Response From Automatic Temperature Control Module

Test 1 - 3:

Test 4 - 6:

SYMPTOM
NO RESPONSE FROM AUTOMATIC TEMPERATURE CONTROL

POSSIBLE CAUSES
- Check powers and grounds to the automatic temperature control
- Module - internal short to ground
- K-IC, ATC, HBM, CHM circuit shorted to ground
- MODULE - internal short to voltage
- K-IC, ATC, HBM, CHM circuit shorted to voltage
- K-IC, ATC, HBM, CHM circuit open
- Automatic temperature control