DTC P1624 [MZR-CD (RF Turbo)]


BME010201600W14

DTC P1624

Immobilizer system communication counter = 0

DETECTION CONDITION

• PCM detected immobilizer system communication malfunction more than three times.

POSSIBLE CAUSE

• Engine start was attempted more than three times under malfunction
• Code word mismatch

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
FOLLOW OTHER DETECTED DTC FIRST
• Turn engine switch to OFF.
• Start engine.
• Has P1602 been detected?
Yes
Go to DTC P1602 inspection.
No
Go to next step.
2
INSPECT POOR CONNECTION OF IMMOBILIZER UNIT CONNECTOR
• Has P1621 been detected?
Yes
Go to DTC P1621 inspection.
No
Go to next step.
3
VERIFY TROUBLESHOOTING OF DTC P1624 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.
4
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.