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DTC P1622 [L3]

BME010201600W05

DTC P1622 | Key ID number does not match
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DETECTION CONDITION | • ID numbers stored in immobilizer unit (IU) and PCM do not match. This DTC is indicated only after immobilizer unit is replaced and reprogramming of system.
POSSIBLE CAUSE | • Transformation of key ID number stored in PCM.

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 Step 3.
2 | CHECK ENGINE IS STARTING NORMALLY USING ANOTHER REGISTERED KEY • Does engine start with another registered key? | Yes | Previous key is defective. Discard it.
No | Go to next step.
3 | VERIFY TROUBLESHOOTING OF DTC P1622 COMPLETED • 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.
4 | 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.