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STEP
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INSPECTION
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ACTION
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION
• Check for related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to next step.
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No
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Go to the next step.
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3
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is DTC P0234 on FREEZE FRAME DATA?
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Yes
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Go to the next step.
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No
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Go to troubleshooting procedures for DTC in FREEZE FRAME DATA.
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4
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INSPECT AIR SUCTION AT INSTAKE-AIR SYSTEM
• Inspect intake-air system for air suction between MAF sensor and turbo charger.
• Is there any air suction?
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Yes
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Repair or replace malfunctioning part, then go to Step 9.
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No
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Go to the next step.
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5
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INSPECT VBC SOLENOID VALVE FOR STUCK OPEN
• Inspect VBC solenoid valve.
• Is VBC solenoid valve stuck open?
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Yes
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Replace VBC solenoid valve, then go to Step 9.
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No
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Go to the next step.
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6
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INSPECT GUIDE BLADE ACTUATOR FOR STUCK OPEN
• Inspect guide blade actuator.
• Is VBC actuator stuck open?
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Yes
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Replace turbocharger, then go to Step 9.
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No
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Go to the next step.
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7
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INSPECT BOOST SENSOR
• Inspect boost sensor.
• Is boost sensor normal?
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Yes
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Go to the next step.
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No
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Replace the boost sensor, then go to Step 9.
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8
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INSPECT TURBOCHARGER
• Inspect turbocharger.
• Is turbocharger normal?
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Yes
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Go to the next step.
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No
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Replace turbocharger, then go to next step.
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9
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VERIFY TROUBLESHOOTING OF DTC P0234 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Perform the OBD Drive Mode.
• Is PENDING CODE the same as DTC present?
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Yes
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Replace PCM, then go to next step.
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No
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Go to the next step.
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10
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VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
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Yes
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Go to applicable DTC troubleshooting.
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No
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Troubleshooting completed.
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