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DTC P1624 [L3]

BME010201600W07

DTC P1624 | Immobilizer system communication counter = 0
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DETECTION CONDITION | • PCM detected immobilizer system communication malfunction more than three times
POSSIBLE CAUSE | • More than three attempts to start engine made under malfunction. • Code word mismatch

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | PERFORM DTC CONFIRMATION PROCEDURE • Perform DTC CONFIRMATION PROCEDURE. (See DTC CONFIRMATION PROCEDURE [L3].) • Is same DTC present? | Yes | Go to next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L3].) Then go to next step.
2 | FOLLOW OTHER DETECTED DTC FIRST • Turn ignition key to OFF and to START. • Has P1602 been detected? | Yes | Go to DTC P1602 inspection. (See DTC P1602 [L3].)
No | Go to next step.
3 | INSPECT POOR CONNECTION OF IMMOBILIZER UNIT CONNECTOR • Has P1621 been detected? | Yes | Go to DTC P1621 inspection. (See DTC P1621 [L3].)
No | Go to next step.
4 | 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. (See KOEO/KOER SELF-TEST PROCEDURE [L3].)
• Is same DTC present?
Yes
Replace PCM, then go to next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | Go to next step.
5 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L3].) • Is there any DTC present? | Yes | Go to applicable DTC troubleshooting. (See DTC TABLE [L3].)
No | Troubleshooting completed.