Diagnostic procedure
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STEP
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INSPECTION
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ACTION
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1
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PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure.
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2
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INSPECT VIS CONTROL SOLENOID VALVE CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the VIS control solenoid valve connector.
• Inspect for poor connection (damaged/pulled-out pins, corrosion, etc.).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 8.
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No
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Go to the next step.
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3
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INSPECT VIS CONTROL SOLENOID VALVE MALFUNCTION
• Perform VIS control solenoid valve inspection.
• Is the VIS control 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 VIS control solenoid valve, then go to step 8.
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4
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INSPECT VIS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between VIS control solenoid valve terminal A (wiring harness-side) and body ground.
• Is the voltage B+?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness for open circuit, then go to Step 8.
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5
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INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between VIS control solenoid valve terminal B (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Repair or replace the wiring harness for short to ground, then go to Step 8.
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No
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Go to the next step.
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6
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INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Disconnect the PCM connector.
• Inspect for poor connection at terminal 4R. (damaged/pulled-out pins, corrosion, etc.).
• Is there any malfunction?
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Yes
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Repair the terminal, then go to Step 8.
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No
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Go to the next step.
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7
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INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR OPEN
• Inspect for continuity between VIS control solenoid valve terminal B (wiring harness-side) and PCM terminal 4R (wiring harness-side).
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness for open circuit, then go to the next step.
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8
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VERIFY TROUBLESHOOTING OF DTC P0661 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn the ignition switch to the ON position (Engine off).
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Perform KOER self-test.
• Is the same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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9
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VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See AFTER REPAIR PROCEDURE [L3].)
• Is there any DTC present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [L3].)
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No
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Troubleshooting completed.
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