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DTC › OPC OPC / 07E4

Incorrect checksum in the control unit's integrated RAM memory

â–¶ How to fix

Clear the fault code and turn the starter key to the zero position for a few seconds. If after this the fault code comes back, renew the control unit.

What you'll see

No driver-visible symptom recorded.

System reaction

No system-reaction text recorded.

Diagnostic depth

Detection

Incorrect checksum in the control unit's integrated RAM memory.

Possible cause

Incorrect data in the control unit's integrated RAM memory.

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