Code No. C2266:
Unavailable of Yaw Rate quality
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- 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 (Refer to GROUP 54C - Troubleshooting
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- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the ACC/FCM-ECU is replaced, calibrate the radar (refer to ).
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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.
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A diagnosis code is not set as a historic fault.
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PROBABLE CAUSES
- Malfunction of the CAN bus line
- 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 ACC/FCM-ECU
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STEP 1. M.U.T.-III CAN bus diagnostics.
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Use M.U.T.-III to perform the CAN bus diagnosis.
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Q.
Is the check result normal?
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 Go to Step 2.
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 Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
On completion, go to Step 2.
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STEP 2. Use M.U.T.-III to confirm a diagnosis code of other systems.
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Check if the diagnosis code is set in the ASTC-ECU (Refer to GROUP 35C - Troubleshooting <ASTC-ECU>,
Diagnosis Function).
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Q.
Is the diagnosis code set?
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Troubleshoot the ASTC-ECU diagnosis code (Refer to GROUP 35C - Troubleshooting <ASTC-ECU>, Diagnosis
Code Chart ).
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Go to Step 3.
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STEP 3. Use M.U.T.-III to confirm a diagnosis code of other systems.
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Check if the diagnosis code is set in the steering wheel sensor (Refer to GROUP 35C - Troubleshooting <Steering
Wheel Sensor>, Diagnosis Function).
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Q.
Is the diagnosis code set?
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Troubleshoot the steering wheel sensor diagnosis code (Refer to GROUP 35C - Troubleshooting <Steering
Wheel Sensor>, Diagnosis Code Chart).
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Go to Step 4.
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STEP 4. Check whether the diagnosis code is set again.
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Check again if the diagnosis code is set in the ACC/FCM-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(4)Press the ACC ON/OFF switch to turn the ACC system to ON.
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(5)On completion, check that the diagnosis code is set again.
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Q.
Is diagnosis code No. C2266 set?
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Replace the ACC/FCM-ECU (Refer to ).
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction).
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