Code No. C2266: Unavailable of Yawrate quality
| caution |
- If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the hydraulic unit assembly (integrated with ASTC-ECU) is replaced, always carry out the calibration of the steering wheel sensor and the G sensor (Refer to
 ).
- When the column switch assembly (Integrated with steering wheel sensor) is replaced, calibrate the steering wheel sensor (Refer to On-vehicle Service ).
- When the FCM-ECU is replaced, calibrate the radar (refer to ).
|
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality below is detected:
- Yaw rate sensor output value cannot be compensated for offset.
| note |
A diagnosis code is not set as a historic fault.
|
PROBABLE CAUSES
- The CAN bus line is defective.
- ASTC system fault (yaw rate sensor or vehicle speed sensor fault)
- Malfunction of the column switch assembly (Integrated with steering wheel sensor)
- Malfunction of the FCM-ECU
|
|
STEP 1. M.U.T.-III CAN bus diagnostics.
|
|
|
Use M.U.T.-III to diagnose the CAN bus lines.
|
|
|
Q.
Is the check result normal?
|
|
|
 Go to Step 2.
|
|
|
|
|
|
 Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
|
|
|
|
|
|
STEP 2. Use M.U.T.-III to confirm a diagnosis code of other systems.
|
|
|
Check if the diagnosis code is set in the ASTC-ECU (Refer to Diagnosis Code Chart ).
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Troubleshoot the ASTC-ECU diagnosis code (Refer to Diagnosis Code Chart ).
|
|
|
|
|
|
Go to Step 3.
|
|
|
|
|
|
STEP 3. Use M.U.T.-III to confirm a diagnosis code of other systems.
|
|
|
Check if the diagnosis code is set in the steering wheel sensor (Refer to Diagnosis Code Chart ).
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Troubleshoot the steering wheel sensor diagnosis code (Refer to Diagnosis Code Chart ).
|
|
|
|
|
|
Go to Step 4.
|
|
|
|
|
|
STEP 4. Check whether the diagnosis code is set again.
|
|
|
Check again if the diagnosis code is set in the FCM-ECU.
|
|
|
(1)Erase the diagnosis code.
|
|
|
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
|
|
|
(4)On completion, check that the diagnosis code is set again.
|
|
|
Q.
Is diagnosis code No. C2266 set?
|
|
|
Replace the FCM-ECU (Refer to ).
|
|
|
|
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
|
|
|
|