[Previous][Next]
DTC C2002: Valve calibration not completed
 
 
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Line Diagnostic Flow ).
  • Whenever ECU is replaced, ensure that the CAN bus lines are normal.
  • When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor, the G and yaw rate sensor and brake fluid pressure sensor (Refer to , and ).
 
 
 
OPERATION
Perform the master cylinder pressure sensor calibration to store the calibrated value in the ASC-ECU. At the same time, the calibrated value of cut valve and inlet valve are stored.
 
 
 
DTC SET CONDITIONS
This DTC is set when the calibrated values for cut valve and inlet valve stored in ASC-ECU are not within the predetermined range.
 
 
 
PROBABLE CAUSES
  • ASC-ECU malfunction
  • Noise interference
 
 
 
 
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.
Use scan tool to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 3.
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ). On completion, go to Step 2.
 
STEP 2. DTC recheck after resetting CAN bus lines
Is DTC C2002 set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Then go to Step 3.
The procedure is complete.
 
STEP 3. Check whether the DTC is reset.
Erase the DTC.
Is DTC C2002 set?
Return to Step 1.
The procedure is complete.