FCM/LDW/AHB-ECU SENSOR CALIBRATION



 1.Place a calibration plate.
(1)

Fabricate two calibration plate according to dimensions shown in illustration.
(2)

Place them as shown.
(3) Place the calibration plate and the vehicle as shown.
Calibration plate position

  • Distance between the sensor on the FCM/LDW/AHB-ECU and the calibration plate: 2500 ± 10 mm
    (Distance between the centre of the front axle and the calibration plate: 1737 mm)

  • Dimension (height) between the floor and the centre of the calibration plate: 1300 ± 10 mm
2.Turn the ignition switch "OFF" position.
3.Connect the M.U.T.-III to the diagnosis connector (For how to connect the M.U.T.-III, refer to GROUP 00 - Diagnosis function).
4.Turn the ignition switch to the "ON" position. (Do not start the engine.)
5.Operate the M.U.T.-III as below:
(1) Select "FCM/LDW/AHB" on the system selection screen.
(2) Select "Special function".
(3) Select "Learning".
(4) Select "Camera calibration", and then execute the calibration.
note The indicator on the display should illuminate according to the calibration status as shown in the table.
Display content
 Calibration is in progress
 Calibration not complete
 Calibration complete


Flashing (2Hz)
 Flashing (1Hz)
 OFF


Flashing (2Hz)
 OFF
 ON


Display
 No display
 No display


No display
 Display
 No display
(5) When you select item No. 48 "Calibration condition" on "Camera calibration", you can monitor a calibration result.
OK: Completed
NG: Diagnosis code No. C1754 is set together with the diagnosis code, which indicates why the calibration has failed.

Explanation of diagnosis code, and remedy
Diagnosis code No.
 Contents
 Remedy
C1754
 It will be set when you cannot calibrate.
 Follow the diagnosis code, which indicates why the calibration has failed.
C2279
 Displayed when the calibration fails due to an internal error in the ECU.
 Replace the FCM/LDW/AHB-ECU (Refer to ).
C2280
 Displayed when the system detects an implausible contrast ratio of "black and white" portions during the calibration.
 Check the calibration plate, FCM/LDW/AHB-ECU and the vehicle for items below, and correct it if necessary. Then repeat the calibration process.

  • The calibration plate is installed properly.
  • The calibration plate is contaminated or damaged.
  • The FCM/LDW/AHB-ECU is installed correctly.
  • The vehicle is parked correctly (the vehicle is not parallel to the calibration plate).
If you cannot calibrate the FCM/LDW/AHB-ECU, replace it (Refer to ).
C2281
 Displayed when the system cannot recognise the calibration plate during the calibration.
C2282
 Displayed when the system recognises two calibration plates or more during the calibration.
C2283
 Displayed when the system detects an implausible contrast ratio of "white" portions during the calibration.
C2284
 Displayed when the calibration plate is slid from the specified position during the calibration.
C2285
 Displayed when the calibration plate is not positioned as specified.
C2286
 The input target position value for service calibration was abnormity.
C2287
 The input distance between target to centre for service calibration was abnormity.
C2288
 FCM/LDW/AHB-ECU detected possibility the target overlaps, when calibration is in progress.
C2289
 Displayed when the calibration fails due to an implausible calibration compensation angle (pitch).
C2290
 Displayed when the calibration fails due to an implausible calibration compensation angle (yaw).
C2291
 Displayed when the calibration fails due to an implausible calibration compensation angle (roll).