54A-CODE No.B1761 Chassis No. not programmed

DTC B1761: VIN not programmed

caution

Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in Immobilizer System - How to Register Key ID .)

TROUBLE JUDGMENT

If the chassis number is not written to the ETACS-ECU, the ETACS-ECU sets DTC No. B1761.

TROUBLESHOOTING HINTS

Chassis number not programmed
The ETACS-ECU may be defective.

DIAGNOSIS

Using scan tool (M.U.T.-III), diagnose the CAN bus line.

(1)

caution

To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).

Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)

(2) Erase the DTC.

(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.

(4) If no chassis number is stored in the ETACS-ECU, check whether a chassis number is stored in the engine control module.(Refer to GROUP 13A - DTC No. P0630 "Vehicle Identification Number (VIN) Malfunction"

<2.4 L ENGINE>, GROUP 13B- DTC No. P0630 "Vehicle Identification Number (VIN) Malfunction"

<3.0 L ENGINE>).

(5) Check if DTC is set.

Is the DTC set?

Replace the ETACS-ECU.

The diagnosis is complete.