PCM/ECM sets P0661 when detects electrical error in circuit. (Short to ground / Open circuit)
| Item | Detecting Condition | Possible Cause | 
| DTC Strategy | 
										•
									 Electrical Check | 1. Open or Short to Ground in Control circuit 2. Open or Short to Ground in Power circuit 3. Poor connection or damaged harness 4. Faulty VIS Sol. Valve | 
| Enable Conditions | 
										•
									 6V < Battery voltage < 16V 
										•
									 Engine running | |
| Threshold Value | 
										•
									 Short to ground 
										•
									 Open circuit | |
| Diagnostic Time | 
										•
									 3 sec. | |
| MIL On Condition | 
										•
									 2 driving cycle |