DTC P0299:00 [MZR-CD 2.2]


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DTC P0299:00

Turbocharger underboost condition

DETECTION CONDITION
•  The PCM monitors the intake boost pressure using the boost sensor signal. The PCM compares the intake boost pressure of target and actual. If the actual intake air charging pressure is detected as one of the following conditions in comparison to the target air charging pressure, the PCM determines that there is insufficient air charging pressure.
•  Conditions vary depending on the PCM.
―  −50 kPa {−0.51 kgf/cm2, −7.30 psi} lower or more detected for 12 s
MONITORING CONDITIONS
•  Battery voltage: 10 V or more
•  Gear position: 2GR or more
•  Vehicle speed: 25—127 km/h {16.0—78.9 mph}
•  Intake air temperature:−7 °C {19 °F}
•  Turbo system loop status is closed loop.
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Improper operation of VBC control
―  Guide blade actuator position sensor malfunction
―  VBC solenoid valve malfunction
―  Guide blade actuator malfunction
•  Improper installation of boost sensor
•  Air leakage in intake-air system
•  Boost sensor malfunction
•  Turbocharger malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE 2)
•  Perform the Freeze Frame PID Data Access Procedure.
•  Is the DTC P0299:00 on FREEZE FRAME DATA (Mode 2)?
Yes
Go to the next step.
No
Go to the troubleshooting procedure for DTC on FREEZE FRAME DATA (Mode 2).
2
VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
3
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
4
INSPECT VBC SYSTEM OPERATION
•  Perform the Guide Blade Actuator Operation Inspection.
•  Does the guide blade operate properly?
Yes
Go to the next step.
No
Repair or replace the malfunctioning part according to the inspection results, then go to Step 8.
5
INSPECT INTAKE-AIR SYSTEM
•  Inspect the intake-air system for following points.
―  Boost sensor installation
―  Air leakage between turbocharger and intake manifold
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part according to the inspection results, then go to Step 8.
No
Go to the next step.
6
INSPECT BOOST SENSOR
•  Inspect the boost sensor.
•  Is there any malfunction?
Yes
Replace the boost sensor, then go to Step 8.
No
Go to the next step.
7
INSPECT TURBOCHARGER
•  Inspect the turbocharger.
•  Is there any malfunction?
Yes
Replace the turbocharger, then go to the next step.
No
Go to the next step.
8
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and drive the vehicle.
•  Perform the DTC Reading Procedure.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.