If there is Open in VIS circuit, ECM/PCM sets DTC P0660.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
In-manifold tuning valve control circuit high check | 1. Poor connection 2. Open or short in VIS circuit 3. Faulty VIS 4. Faulty ECM/PCM |
Enable Conditions |
•
- | |
Threshold Value |
•
Powerstage diagnosis | |
Diagnostic Time |
•
2 sec. | |
MIL ON Condition |
•
No MIL |
