Loss of KWP2000-ECU ID data
â–¶ How to fix
Replace the ACSX6 unit (since ECU complete number can not be recovered/rewritten by SDP3).
What you'll see
• COO and ACS red warning shown in ICL (since ACSX6 is not sending the correct VIN) • Limited support in SDP3 (since the ECU complete number cannot be identified)
System reaction
Red ACS stop lamp
Diagnostic depth
Detection
File containing KWP2000 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.