B1761

DTC B1761: VIN Not Registered

TECHNICAL DESCRIPTION (COMMENT)
If the VIN data are not written when the ETACS-ECU is replaced, the ETACS-ECU sets diagnosis code No.B1761.

TROUBLESHOOTING HINTS
- Malfunction of the ETACS-ECU

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

Recheck for diagnostic trouble code.

CAUTION: To prevent damage to scan tool (MB991958), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (MB991958).




1. Use the scan tool MB991958 to write the VIN data. Refer to General (Body and Chassis) - Precautions Before Service.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. On completion, check that the diagnostic trouble code is not reset.

Q: Is the diagnostic trouble code set?

YES: The procedure is complete.

NO: Replace the ETACS-ECU and then register the encrypted code.