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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 next step.
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No
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Record FREEZE FRAME DATA on repair order, then go to next step.
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2
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Check for related Service Bulletins and/or on-line repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to available repair information.
• If vehicle is not repaired, go to next step.
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No
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Perform PCM configuration procedure, then go to next step.
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3
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VERIFY TROUBLESHOOTING OF DTC P1639 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn ignition key to ON (Engine OFF).
• Clear DTC from PCM memory using WDS or equivalent.
• Start engine and warm up it completely.
• Is same 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 next step.
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4
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VERIFY AFTER SERVICE PRECAUTION
• Perform "AFTER SERVICE PRECAUTION".
• Are any DTCs present?
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Yes
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Go to applicable DTC inspection.
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No
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Troubleshooting completed.
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