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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PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
• Is same DTC present?
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Yes
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Go to next step.
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No
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Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure.
Then go to next step.
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2
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FOLLOW OTHER DETECTED DTC FIRST
• Turn ignition key to OFF and to START.
• Has P1602 been detected?
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Yes
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Go to DTC P1602 inspection.
(See DTC P1602 [L3].)
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No
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Go to next step.
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3
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INSPECT POOR CONNECTION OF IMMOBILIZER UNIT CONNECTOR
• Has P1621 been detected?
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Yes
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Go to DTC P1621 inspection.
(See DTC P1621 [L3].)
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No
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Go to next step.
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4
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VERIFY TROUBLESHOOTING OF DTC P1624 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory using WDS or equivalent.
• Perform KOEO self-test.
• Is same DTC present?
|
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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5
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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 applicable DTC troubleshooting.
(See DTC TABLE [L3].)
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No
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Troubleshooting completed.
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