DTC P2598:00 [MZ-CD 1.6]
id0102g8265800
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DTC P2598:00 |
VBC solenoid valve stuck open |
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DETECTION CONDITION
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• The PCM monitors the VBC solenoid valve position using the wastegate valve position sensor. The PCM compares the target and actual VBC solenoid valve position. If the PCM detects that actual VBC solenoid valve exceeds the target position excessively while the VBC solenoid valve is moving to close, the PCM determines that the VBC solenoid valve is stuck open.
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POSSIBLE CAUSE
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• VBC solenoid valve connector or terminal malfunction
• Obstruction in VBC solenoid valve
• VBC solenoid valve malfunction
• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the 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 REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the 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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VERIFY RELATED PENDING CODE AND/OR DTC
• Switch the ignition to ON (engine off).
• Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
• Is the other PENDING CODE/DTC also present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
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No
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Go to the next step.
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4
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INSPECT VBC SOLENOID VALVE CONNECTOR FOR POOR CONNECTION
• Switch the ignition to off.
• Disconnect the VBC solenoid valve connector.
• Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace terminal, then go to Step 7.
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No
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Go to the next step.
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5
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VISUALLY INSPECT VBC SOLENOID VALVE
• The VBC solenoid valve connector is disconnected.
• Remove the VBC solenoid valve.
• Visually inspect VBC solenoid valve.
• Is there any obstacle (carbon deposit etc.) on VBC solenoid valve?
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Yes
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Remove the obstacle, then go to the next step.
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No
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Go to the next step.
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6
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INSPECT THE VBC SOLENOID VALVE
• Inspect the VBC solenoid valve.
• Is the VBC solenoid valve 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 VBC solenoid valve.
Then go to the next step.
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7
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VERIFY THAT DTC P2598:00 TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the PCM.
Go to the next step.
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No
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Go to the next step.
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8
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VERIFY AFTER REPAIR PROCEDURE
• Perform the after repair procedure.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
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No
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DTC troubleshooting completed.
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