DTC P1622 [L3]

BME010201600W05

DTC P1622

Key ID number does not match

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

1
PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
• Is same DTC present?
Yes
Go to next step.
No
Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure.
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.
• Is same DTC present?
Yes
Replace PCM, then go to next step.
No
Go to next step.
4
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to applicable DTC troubleshooting.
No
Troubleshooting completed.