DTC P1622 [MZR-CD (RF Turbo)]

BME010201600W12

DTC P1622

Key ID number mismatch

DETECTION CONDITION

• ID numbers stored in immobilizer unit and PCM do not match. This DTC is indicated only after immobilizer unit is replaced and system is reprogrammed.

POSSIBLE CAUSE

• Transformation of key ID number stored in PCM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any repair information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to next step.
No
Go to next step.
2
VERIFY DTC P1622 DETECTED AGAIN
• Clear DTC from PCM memory using WDS or equivalent.
• Start engine.
• Is same DTC present?
Yes
Go to next step.
No
Go to Step 4.
3
CHECK IF ENGINE STARTS NORMALLY USING ANOTHER REGISTERED KEY
• Does engine start with another registered key?
Yes
Previous key is defective. Discard it.
No
Go to next step.
4
VERIFY TROUBLESHOOTING OF DTC P1603 COMPLETED
• Clear DTC from PCM memory using WDS or equivalent.
• Start engine.
• Is same DTC present?
Yes
Replace PCM, go to next step.
No
Go to next step.
5
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure"
• Is there any DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.