Code No. C2204 Internal abnormality in G and yaw rate sensor


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 (Refer to GROUP 54C, Trouble code diagnosis ).

OPERATION

  • ASC-ECU supplies power to the G and yaw rate sensor at the terminal No. 1.
  • The G and yaw rate sensor outputs the signal to ASC-ECU via the CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set if any malfunction below is found:

  • When abnormality is detected by the self-diagnosis of the G and yaw rate sensor
  • When the output value of the G and yaw rate sensor is not within the standard value range
note This diagnosis code may be set when G and yaw rate sensor is put on the turntable turning at high speed.

PROBABLE CAUSES

  • Improper installation of the G and yaw rate sensor
  • Damaged wiring harness and connectors
  • G and yaw rate sensor malfunction
  • ASC-ECU malfunction

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnosis
Use M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?
Go to Step 3.
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 2.

STEP 2. Diagnosis code recheck after resetting CAN bus lines

Q. Is the diagnosis code No. C2204 set?
Go to Step 3.
This diagnosis is complete.

STEP 3. G and yaw rate sensor installation check
Check that the G and yaw rate sensor is installed correctly.

Q. Is the check result normal?
Go to Step 4.
Reinstall the G and yaw rate sensor correctly.

STEP 4. M.U.T.-III data list
Check the following service data.

  • Item 08: Lateral G-sensor
  • Item 12: Deviation ratio sensor

Q. Is the check result normal?
Go to Step 5.
Replace the G and yaw rate sensor, and then go to Step 5.

STEP 5. Check whether the diagnosis code is reset.

Q. Is the diagnosis code No. C2204 set?
Replace the ASC-ECU.
This diagnosis is complete.