Diagnostic procedure
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STEP
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INSPECTION
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ACTION
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|---|---|---|---|
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1
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VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS 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 REPAIR INFORMATION AVAILABILITY
• Verify 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 the available Service 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
|
INSPECT WASTEGATE CONTROL SOLENOID VALVE
• Inspect the wastegate control solenoid valve.
• Is there any malfunction?
|
Yes
|
Replace the wastegate control solenoid valve, then go to Step 5.
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No
|
Go to the next step.
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4
|
INSPECT VACUUM HOSE
• Inspect the vacuum hose condition for the following:
• Is there any malfunction?
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Yes
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Repair or replace the suspected part, then go to the next step.
|
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No
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Go to the next step.
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5
|
VERIFY TROUBLESHOOTING OF DTC P0234 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
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No
|
Go to the next step.
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6
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VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
• Are any DTCs present?
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Yes
|
Go to the applicable DTC troubleshooting.
(See DTC TABLE [L3 Turbo].)
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No
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DTC troubleshooting completed.
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