CHASSIS NUMBER WRITING

Required Special Tools:

MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
MB992745: V.C.I.-Lite main harness A
MB992747: V.C.I.-Lite USB cable short
MB992748: V.C.I.-Lite USB cable long

caution

When the PHEV-ECU is replaced, perform the following procedures.

Chassis number writing
MAC KEY writing (Refer to MAC KEY WRITING)
Vehicle specification writing (Refer to VEHICLE SPECIFICATION WRITING)

note

When the chassis number writing, MAC KEY writing or vehicle specification writing is carried out, DTC No. U2252-08 may be set in the PHEV-ECU, or DTC No. C1F04-61 may be set in the ADAS control unit 2. Therefore, carry out the following procedures after the writing.

Check that the DTC No. U2252-08 is set in the PHEV-ECU.
- When the DTC is not set: Go to Step 2.
- When the DTC is set as a past trouble: Erase the DTC, then go to Step 2.
- When the DTC is set as a current trouble: Carry out the following procedures.
  1. Start the engine (set the drive mode to battery charge mode, or start the continuous idling mode) or drive the vehicle at 5 km/h (3 mph) or more.
  2. Change the power supply mode of the electric motor switch to OFF.
  3. Change the power supply mode of the electric motor switch to ON.
  4. Check whether the DTC No. U2252-08 is set in the PHEV-ECU.
    When the DTC is set as a current trouble: Carry out the diagnosis procedures for the DTC No. U2252-08, then go to Step 2.
    When the DTC is set as a past trouble: Erase the DTC, then go to Step 2.
Check that the DTC No. C1F04-61 is set in the ADAS control unit 2.
- When the DTC is not set: End the diagnosis.
- When the DTC is set as a past trouble: Erase the DTC, then end the diagnosis.
- When the DTC is set as a current trouble: Carry out the diagnosis procedures for the DTC No. C1F04-61.

Using the M.U.T.-IIISE, write the chassis number in the PHEV-ECU by the following procedures.

1. On the "System selection" screen, select "PHEV".

2. Select "Special Function", then select "Chassis No./VIN Registration".

3. Write the chassis number by following the instructions on the screen.

note	For the detailed procedures, refer to "M.U.T.-III SE User's Manual".