Anti-Lock Braking System (ABS)

DTC C2200: Abnormality in ABS-ECU

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 Diagnostics Chart ).
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.

OPERATION

ABS-ECU controls ABS by calculating the data sent from the wheel speed sensor and the G sensor.

DTC SET CONDITIONS

This DTC is set when ABS-ECU has malfunction.

PROBABLE CAUSES

ABS-ECU malfunction

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 2.
STEP 2. DTC recheck after resetting CAN bus lines

Q. Is DTC C2200 set?

YES Replace the hydraulic unit (integrated with ABS-ECU) (Refer to Anti-Lock Braking System (ABS)).
Then go to Step 3.
NO Intermittent malfunction How to Cope With Intermittent Malfunctions).
STEP 3. DTC recheck after resetting CAN bus lines

Q. Is DTC C2200 set?

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