1. DTC P0047 description
The position of the turbocharger nozzles is controlled by the ECM. The ECM utilizes the turbocharger control solenoid valve and boost pressure sensor to control the turbocharger nozzles. When no load is applied to the engine, the turbocharger nozzle is open or there is no boost pressure. When load is applied to the engine, the ECM controls the control solenoid valve and closes the turbocharger nozzle. As a result, boost pressure is increased. The ECM controls changes in boost pressure according to the load requirements of the engine. The ECM uses pulse width modulation (PWM) in the control circuit to control the opening of the solenoid valve. If the ECM detects an excessively low feedback current in the turbocharger control solenoid, the DTC is set.
2. Condition for setting DTC P0047
Condition for running the DTC
- The battery voltage is 9 to 16 V.
- The ignition voltage is 9 to 16 V.
- The ignition switch is ON.
- The duty ratio of the turbocharger control solenoid is 30% or more.
- DTC P060B is not set.
Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) DTC P060B (Flash Code 36) Internal Control Module A/D Processing Performance".
Condition for setting the DTC
Any of the following are met:
- The ECM detects that the feedback current of the turbocharger control solenoid is 70 mA or less for 3.2 seconds or more.
- The ECM detects that the feedback current of the turbocharger control solenoid is less than the desired current by 2,500 mA or more for 3.2 seconds or more.
3. Action taken when DTC P0047 sets
- Euro4: The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A (Euro4).
- Except Euro4: The ECM illuminates the check engine warning light. Refer to Action taken when DTC sets - Type A (Except Euro4).
Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) DTC type definitions".
- The ECM limits the fuel injection quantity.
- The ECM inhibits the EGR control.
- The ECM inhibits the cruise control.
4. Condition for clearing DTC P0047
- Euro4: Refer to Condition for clearing the MIL/DTC - Type A or Type B (Euro4).
- Except Euro4: Refer to Condition for clearing the check engine warning light/DTC - Type A or Type B (Except Euro4).
Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) DTC type definitions".