Code No.C2206: Re-execution of variant coding
| 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 - CAN Bus Diagnostics Table
 ).
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
- When diagnosis code No.C2206 is set in ABS-ECU, the diagnosis code may also be set in ETACS-ECU. When the diagnosis code is set in ETACS-ECU, carry out the diagnosis of the diagnosis code for ETACS-ECU first.
|
OPERATION
ABS-ECU receives the vehicle information stored in the ETACS-ECU via CAN bus lines.
DIAGNOSIS CODE SET CONDITIONS
The ABS-ECU compares the last vehicle information and the information before last. If there are any differences between the two, the ECU will set this diagnosis code.
PROBABLE CAUSES
- Malfunction of the ETACS-ECU
- ETACS-ECUs have been interchanged between two vehicles.
- The ABS-ECU, which was used on another vehicle, is installed on this vehicle.
- Malfunction of the hydraulic unit assembly (integrated with ABS-ECU)
- Noise interference
|
|
STEP 1. M.U.T.-III CAN bus diagnosis
|
|
|
Use the 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 - CAN Bus Diagnostics Table ). On completion, go to Step 2.
|
|
|
|
|
|
STEP 2. Diagnosis code recheck after resetting CAN bus lines
|
|
|
(1)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
(2)Turn the ignition switch to the "ON" position.
|
|
|
(3)Erase the diagnosis code.
|
|
|
(4)Turn the ignition switch to the "ON" position.
|
|
|
(5)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C2206 set?
|
|
|
Go to Step 3.
|
|
|
|
|
|
This diagnosis is complete.
|
|
|
|
|
|
STEP 3. Check for diagnosis codes of other systems.
|
|
|
Use M.U.T.-III to check that the ETACS-ECU-related diagnosis code is set.
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Troubleshoot for the relevant diagnosis code (Refer to ). Then go to Step 6.
|
|
|
|
|
|
Go to Step 4.
|
|
|
|
|
|
STEP 4. ETACS-ECU coding data check
|
|
|
Using M.U.T.-III, check if any abnormality is present to the coding data which are stored in the ETACS-ECU.
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 5.
|
|
|
|
|
|
Replace ETACS-ECU. (Refer to GROUP 54A - ETACS-ECU .) Then go to Step 6.
|
|
|
|
|
|
STEP 5. ETACS-ECU parts No. check
|
|
|
Check the ETACS-ECU parts No.
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 6.
|
|
|
|
|
|
Replace the hydraulic unit assembly (integrated with ABS-ECU). (Refer to ). Then go to Step 7.
|
|
|
|
|
|
STEP 6. Check whether the diagnosis code is set again.
|
|
|
Check again if the diagnosis code is set.
|
|
|
(1)Erase the diagnosis code.
|
|
|
(2)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
(3)Turn the ignition switch to the "ON" position.
|
|
|
(4)Check if the diagnosis code is set.
|
|
|
(5)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C2206 set?
|
|
|
Replace the hydraulic unit assembly (integrated with ABS-ECU). (Refer to ). Then go to Step 7.
|
|
|
|
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
|
|
|
|
|
|
STEP 7. Check whether the diagnosis code is set again.
|
|
|
Check again if the diagnosis code is set.
|
|
|
(1)Erase the diagnosis code.
|
|
|
(2)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
(3)Turn the ignition switch to the "ON" position.
|
|
|
(4)Check if the diagnosis code is set.
|
|
|
(5)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C2206 set?
|
|
|
Return to Step 1.
|
|
|
|
|
|
The procedure is complete.
|
|
|
|