PCM checks the output voltage from Variable Intake Manifold Solenoid 1 (VIS) every 10 seconds under detecting condition, if the value within detecting condition lasts for more than 5 seconds, the PCM sets a P0660 DTC.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Signal low, high | 1. Poor connection 2. Open or short in VIS1 circuit 3. Faulty VIS1 4. Faulty PCM |
Enable Conditions |
•
After 0.5 sec under conditions below
•
Engine running
•
Battery voltage between 11V and 16V | |
Threshold value |
•
Open or short | |
Diagnosis Time |
•
Continuous (More than 5 seconds failure for every 10 seconds test) | |
MIL On Condition |
•
DTC only (NO MIL ON) |
