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DTC › DCU3 DCU3 / 0204

Not impl: Loss of UDS-ECU ID data

â–¶ How to fix

Replace the DCU unit (since ECU complete number can not be recovered/rewritten by SDP3).

What you'll see

No driver-visible symptom recorded.

System reaction

No system-reaction text recorded.

Diagnostic depth

Detection

File containing UDS ECU identification data is found to be inconsistent or missing at start of ECU. The ECU-ID data could not be read from the persistent memory

Possible cause

System supply voltage (U30) was cut off while the ECU was writing to the file containing the ECU identification data

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