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DTC C2206 Re-execution of variant coding
 
 
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 (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
  • If DTC No.C2206 is set in ASC-ECU, always diagnose the CAN bus line. If there is any fault in the CAN bus lines, an incorrect DTC may be set. In this case, the set DTC is not highly reliable.
  • Before replacing the ECU, ensure that the communication circuit is normal.
  • When DTC No.C2206 is set in ASC-ECU, the DTC may also be set in ETACS-ECU. When the DTC is set in ETACS-ECU, carry out the diagnosis of the DTC for ETACS-ECU first.
 
 
OPERATION
ASC-ECU receives the vehicle information stored in the ETACS-ECU via CAN bus lines.
 
 
 
DTC SET CONDITIONS
ASC-ECU communicates with ETACS-ECU via CAN bus lines. This DTC is set if the vehicle information set in ETACS-ECU varies from the one stored when the electric motor switch was last turned on.
 
 
 
TROUBLESHOOTING HINTS
  • ETACS-ECU or ASC-ECU which was equipped with other vehicle is used.
  • Malfunction of ETACS-ECU
  • ASC-ECU malfunction
  • External noise interference
 
 
 
 
DIAGNOSIS
STEP 1. Scan tool (M.U.T.-IIISE) CAN bus diagnostics.
(1)
cautionTo prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).
Connect scan tool (M.U.T.-IIISE). Refer to "How to connect the Scan Tool (M.U.T.-IIISE) ."
(2) Turn on the power supply mode of the electric motor switch.
(3) Diagnose the CAN bus line.
(4) Turn off the power supply mode of the electric motor switch.
Is the check result normal?
Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ). On completion, go to Step 6.
 
STEP 2. Scan tool (M.U.T.-IIISE) DTC of other system.
Use scan tool (M.U.T.-IIISE) to check that the vehicles information-related DTC is set in the ETACS-ECU.
Is the DTC set?
Troubleshoot the relevant DTC, and then go to Step 3.
Go to Step 5.
 
STEP 3. ETACS-ECU coding data check.
Refer to GROUP 00 - Precautions before Service/Coding List .
Is the check result normal?
Go to Step 5.
Go to Step 4.
 
STEP 4. ETACS-ECU variant coding.
Perform the variant coding to the ETACS-ECU.
Does variant coding succeed?
Go to Step 6.
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ), and then go to Step 6.
 
STEP 5. Check whether the DTC is set again.
(1) Erase the DTC.
(2) Turn off the power supply mode of the electric motor switch.
(3) Turn on the power supply mode of the electric motor switch.
Is DTC No.C2206 set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Then go to Step 6.
This diagnosis is complete.
 
STEP 6. Check whether the DTC is set again.
(1) Erase the DTC.
(2) Turn off the power supply mode of the electric motor switch.
(3) Turn on the power supply mode of the electric motor switch.
Is DTC No.C2206 set?
Return to Step 1.
This diagnosis is complete.