The ECM controls an excessive flow rate by energizing the swirl control solenoid valve based on the vehicle running condition. The ECM instructs the swirl control solenoid valve, applies vacuum pressure to the diaphragm actuator, and operates the swirl control butterfly installed to each intake port. If the ECM detects a short circuit in the solenoid valve circuit, the DTC is set.
Condition for running the DTC
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P1606 ECM Internal IC Failure".
Condition for setting the DTC
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".