B1761

DTC B1761: VIN Not Recorded

CAUTION: Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

TECHNICAL DESCRIPTION (COMMENT)

If the VIN data are not written when the ETACS-ECU is replaced, the ETACS-ECU sets diagnosis code NoB1761.

TROUBLESHOOTING HINTS

- VIN not written
- Damaged harness wires and connectors
- Malfunction of the ETACS-ECU

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: V.C.I
- MB991827: MUT-III USB Cable
- MB991910: MUT-III Main Harness A Write the VIN

Write the VIN.

Write the VIN data to the ETACS-ECU [Refer to How to perform vehicle identification number (VIN) writing].

Q: Is DTC B1761 set?

YES: Replace the ETACS-ECU and register the ID codes.

NO: The procedure is complete.