Active Stability Control System (ASC)

DTC C2205: Internal malfunction of steering wheel sensor

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 CAN Bus Line Diagnostics Flow.
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
- When the steering wheel sensor is replaced, always carry out calibration to make ASC-ECU learn the neutral point (Refer to Active Stability Control System (ASC) ).
- 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 Active Stability Control System (ASC) , Active Stability Control System (ASC) and Active Stability Control System (ASC) ).

OPERATION

Steering wheel sensor sends its status signal to ASC-ECU.

DTC SET CONDITIONS

This DTC is set when ASC-ECU detects that the steering wheel sensor has malfunction.

PROBABLE CAUSES

- Steering wheel sensor malfunction
- ASC-ECU malfunction
- External noise interference

DIAGNOSIS

Required Special Tools:

- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.

Use scan tool to diagnose the CAN bus lines.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the CAN bus lines CAN Bus Diagnostics Chart).
On completion, go to Step 4.
STEP 2. Check whether the DTC is reset.

Q. Is DTC C2205 set?

YES Replace the steering wheel sensor (Refer to Service and Repair), and then go to Step 3.
NO The procedure is complete.
STEP 3. Check whether the DTC is reset.

Erase the DTC.

Q. Is DTC C2205 set?

YES Replace the hydraulic unit (integrated with ASC-ECU) (Refer to Active Stability Control System (ASC)), and then go to Step 4.
NO The procedure is complete.
STEP 4. Check whether the DTC is reset.

Erase the DTC.

Q. Is DTC C2205 set?

YES Return to Step 1.
NO The procedure is complete.