DIAGNOSIS FUNCTION <PHEV>


The diagnosis function retrieves diagnosis code and data list by M.U.T.-III and enables the performance of the actuator test.

note If a diagnosis code is stored, the "status indication by diagnosis code" informs users whether a mechanical problem currently exists (current trouble) or whether it existed before but normal operation has been restored (past trouble).

HOW TO READ DIAGNOSIS CODE


caution Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.

Connect the M.U.T.-III to the 16-pin diagnosis connector, and read the diagnosis code.
note
  • For details on how to use the M.U.T.-III, refer to the "M.U.T.-III operation manual."
  • When the power supply mode of the electric motor switch is turned on with the M.U.T.-III connected to the vehicle body, the headlamp automatic levelling alarm appears on the multi-information display in the combination meter. This phenomenon is caused because the connection of the M.U.T-III to the diagnosis connector makes the headlamp automatic levelling ECU to the diagnosis mode, and not an abnormality. Thus, ignore the display of the indicator and carry out the M.U.T.-III diagnosis. (When the M.U.T.-III starts communication with ECU, the display of the indicator disappears.)
1.The power supply mode of the electric motor switch should be turned off.
2.Start up the personal computer.
3.Connect special tool V.C.I.-Lite USB cable (MB992747/MB992748) or M.U.T.-III USB cable (MB991827) to V.C.I.-Lite (MB992744) or V.C.I. (MB991824) and the personal computer.
4.Connect V.C.I.-Lite main harness A (MB992745) or M.U.T.-III main harness A (MB991910) to the V.C.I.-Lite or V.C.I.
5.Connect the V.C.I.-Lite main harness A or M.U.T.-III main harness A to the diagnosis connector of the vehicle.
note When the V.C.I.-Lite is connected to the diagnosis connector, the V.C.I.-Lite indicator lamp will be illuminated in a green colour.
6.Turn the V.C.I. power switch to the "ON" position. <When using the V.C.I.>
note When the V.C.I. is energised, the V.C.I. indicator lamp will be illuminated in a green colour.
7.Start "M.U.T.-III system" on the PC, and then turn on the power supply mode of the electric motor switch.
8.Read the diagnosis code.
9.Disconnecting the M.U.T.-III is the reverse of the connecting sequence, making sure that the power supply mode of the electric motor switch is turned off.

ERASING DIAGNOSIS CODE


caution Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.
Connect the M.U.T.-III to the diagnosis connector, and erase the diagnosis code. The procedure is the same as "How to Read Diagnosis Code ."