When ECM detects short to ground in OCV(Exhaust) control circuit, ECM sets DTC P0079.
| Item | Detecting Condition | Possible Cause | 
| DTC Strategy | 
										•
									 Circuit continuity check, low | 1. Poor connection 2. Short to ground in control circuit 3. OCV(Exhaust) | 
| Enable Conditions | 
										•
									 Coolant temperature > -5℃ 
										•
									 Time after engine start > 3.5s | |
| Threshold Value | 
										•
									 Short circuit to ground | |
| Diagnostic Time | 
										•
									 Continuous | |
| MIL ON Condition | 
										•
									 3 driving cycle |