DTC P0299 Turbocharger Underboost (4JJ3 without DPD)

1. DTC P0299 description

The boost pressure sensor is installed to the air duct. The boost pressure sensor changes the signal voltage in accordance with changes in air pressure in the air intake pipe. The ECM monitors the boost pressure sensor signal. If the ECM detects an excessively low signal voltage, the DTC is set. This indicates that the boost pressure is excessively low.

2. Condition for setting DTC P0299

Condition for running the DTC

The battery voltage is 9 to 16 V.
The ignition switch is ON.
The engine is running.
The fuel injection quantity is more than or equal to the predetermined value.
DTCs P003A, P0045, P0048, P0088, P0089, P0102, P0103, P0116, P0117, P0118, P0122, P0123, P0192, P0193, P0201, P0202, P0203, P0204, P0237, P0238, P0403, P0560, P060B, P0638, P0641, P0651, P0697, P06AF, P1093, P1261, P1404, P2146, P2149, P2227, P2228, P2229, U0001, U0074, U010A and U0110 are not set.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P003A Turbocharger Boost Control Solenoid Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0045 Turbocharger Boost Control Solenoid Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0048 Turbocharger Control Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0088 Fuel Rail/System Pressure - Too High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0089 Fuel Pressure Regulator Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0102 Mass Air Flow Circuit Low Input".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0103 Mass Air Flow Circuit High Input".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0116 Engine Coolant Temperature Sensor Circuit Range/Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0117 Engine Coolant Temperature Sensor Circuit Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0118 Engine Coolant Temperature Sensor Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0122 Throttle Position Sensor Circuit Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0123 Throttle Position Sensor Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0192 Fuel Rail Pressure Sensor Circuit Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0193 Fuel Rail Pressure Sensor Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0201 Injector Circuit - Cylinder 1".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0202 Injector Circuit - Cylinder 2".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0203 Injector Circuit - Cylinder 3".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0204 Injector Circuit - Cylinder 4".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0237 Turbocharger Boost Sensor Circuit Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0238 Turbocharger Boost Sensor Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0403 Exhaust Gas Recirculation (EGR) Motor Control Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0560 System Voltage".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P060B Internal Control Module A/D Processing Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0638 Throttle Actuator Control Range/Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0641 Sensor Reference Voltage 1 Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0651 Sensor Reference Voltage 2 Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0697 Sensor Reference Voltage 3 Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P06AF EDU (Electric Driver Unit) Injector Custom IC".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P1093 Fuel Rail Pressure (FRP) Too Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P1261 Injector Charge Circuit Low Voltage".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P1404 Exhaust Gas Recirculation (EGR) 1 Closed Position Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P2146 Fuel Injector Group 1 Supply Voltage Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P2149 Fuel Injector Group 2 Supply Voltage Circuit".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P2227 Barometric Pressure Circuit Range/Performance".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P2228 Barometric Pressure Circuit Low".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P2229 Barometric Pressure Circuit High".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0001 High Speed CAN Communication Bus".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0074 Control Module Communication Bus Off - Local CAN".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U010A Lost Communication With Exhaust Gas Recirculation (EGR) Control Module".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0110 Lost Communication with VNT System".

Condition for setting the DTC

The ECM detects that the actual boost pressure is less than the desired boost pressure by 40 kPa {6 psi} or more for 10 seconds or more under a particular condition.

3. Action taken when DTC P0299 sets

Euro4: The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type B (Euro4).
Except Euro4: The ECM illuminates the check engine warning light. Refer to Action taken when DTC sets - Type B (Except Euro4).

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".

The ECM limits the fuel injection quantity.
The ECM inhibits the EGR control.
The ECM inhibits the turbocharger control.
The ECM inhibits the cruise control.

4. Condition for clearing DTC P0299

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(4JJ3 without DPD) DTC type definitions".