DTC P0661 Intake Manifold Tuning Valve Control Circuit Low (4JJ3 with DPD)

1. DTC P0661 description

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 an open circuit in the solenoid valve circuit, the DTC is set.

2. Condition for setting DTC P0661

Condition for running the DTC

  • The battery voltage is 9 to 16 V.
  • The ignition switch is ON.
  • Swirl control valve is commanded OFF.
  • DTC P1606 is not set.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P1606 ECM Internal IC Failure".

Condition for setting the DTC

  • The ECM detects a low voltage condition in the swirl control solenoid valve circuit for 3 seconds when the solenoid is commanded OFF.

3. Action taken when DTC P0661 sets

  • The ECM illuminates the SVS indicator light. Refer to Action taken when DTC sets - Type C.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

  • The ECM limits the fuel injection quantity.
  • The ECM inhibits the cruise control.

4. Condition for clearing DTC P0661

  • Refer to Condition for clearing the SVS indicator light/DTC - Type C.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

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