DTC P1604 [AJ]


BME010201600203

DTC P1604

Key ID numbers are not registered in PCM

DETECTION CONDITION

• Key ID numbers are not registered in PCM.

POSSIBLE CAUSE

• Immobilizer system reprogram procedure (key IDs) was not performed after replacing PCM.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to the next step.
No
Go to the next step.
2
VERIFY DTC P1604 DETECTED AGAIN
• Clear DTC from memory using WDS or equivalent.
• Turn the ignition switch off, then start engine.
• Is same DTC present?
Yes
Perform key ID number reprogram procedure.
No
Go to the next step.
3
VERIFY TROUBLESHOOTING OF DTC P1604 COMPLETED
• Clear DTC from memory using WDS or equivalent.
• Turn the ignition switch off, then start engine.
• Is same DTC present?
Yes
Replace PCM, then go to the next step.
No
Go to the next step.
4
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.