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FCM/LDW/AHB-ECU SENSOR CALIBRATION
 
 
 
 
1. Place a calibration plate.
(1)
Fabricate two calibrate plates or print templates so that they meet the specified dimension.
noteWhen you use the templates, check whether they meet the specified dimension. If not, adjust the print scale and print them again.
(2)
Place them as shown.
(3) Place the calibration plate and the vehicle as shown.
Calibration plate position
  • Distance from the edge of the FCM/LDW/AHB-ECU sensor to the calibration plate: 2500 ± 10 mm (98.4 ± 0.4 in)
    [Distance between the center of the front axle and the calibration plate: 1650 mm (65.0 in)]
  • Dimension (height) between the floor and the center of the calibration plate: 1300 ± 10 mm (51.2 ± 0.4 in)
2. Turn the ignition switch "OFF" position.
3. Connect the scan tool MB991958 to the data link connector (For how to connect the scan tool MB991958, refer to Diagnosis function ).
4. Turn the ignition switch to the "ON" position. (Do not start the engine.)
5. Operate the scan tool MB991958 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.
noteThe indicator on the display should illuminate according to the calibration status as shown in the table.
Display contentCalibration is in progressCalibration not completeCalibration complete
Flashing (2Hz)Flashing (1Hz)OFF
Flashing (2Hz)OFFON
DisplayNo displayNo display
No displayDisplayNo display
(5) When you select item No. 48 "Calibration condition" on "Camera calibration", you can monitor a calibration result.
OK: Completed
NG: DTC No. C1754 is set together with the DTC, which indicates why the calibration has failed.
Explanation of diagnostic trouble code, and remedy
DTC No.ContentsRemedy
C1754It will be set when you cannot calibrate.Follow the diagnostic trouble code, which indicates why the calibration has failed.
C2279Displayed when the calibration fails due to an internal error in the ECU.Replace the FCM/LDW/AHB-ECU (Refer to ).
C2280Displayed 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 ).
C2281Displayed when the system cannot recognize the calibration plate during the calibration.
C2282Displayed when the system recognizes two calibration plates or more during the calibration.
C2283Displayed when the system detects an implausible contrast ratio of "white" portions during the calibration.
C2284Displayed when the calibration plate is slid from the specified position during the calibration.
C2285Displayed when the calibration plate is not positioned as specified.
C2286The input target position value for service calibration was abnormity.
C2287The input distance between target to center for service calibration was abnormity.
C2288FCM/LDW/AHB-ECU detected possibility the target overlaps, when calibration is in progress.
C2289Displayed when the calibration fails due to an implausible calibration compensation angle (pitch).
C2290Displayed when the calibration fails due to an implausible calibration compensation angle (yaw).
C2291Displayed when the calibration fails due to an implausible calibration compensation angle (roll).