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TROUBLESHOOTING ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-109 STEP 3. M.U.T.-III diagnosis code Q: Is any diagnosis code set? YES : Troubleshoot the engine ECU (Refer to GROUP 13A − Troubleshooting/Diagnosis function <4A9>, GROUP 13B − Troubleshooting/Diagnosis function <4B1>, − Troubleshooting/Diagnosis function <4J1> or GROUP 13C − Troubleshooting/Diagnosis function NO : Go to Step 4. STEP 4. Check whether the diagnosis code is Q: Is diagnosis code No.C2203 set? YES : Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ), and then go to Step 5. NO : If a trouble is solved, it is determined that − How to Use Troubleshooting/How to Cope with STEP 5. Check whether the diagnosis code is Q: Is diagnosis code No.C2203 set? YES : Return to Step 1. NO : This diagnosis is complete. 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 − CAN Bus Diagnostics Table ). • If diagnosis code No.C2206 is set in ASC- ECU, always diagnose the CAN bus line. If • Before replacing the ECU, ensure that the communication circuit is normal. • When diagnosis code No.C2206 is set in ASC- ECU, the diagnosis code may also be set in • When the hydraulic unit (integrated with ASC- ECU) is replaced, always carry out the calibra- and OPERATION DIAGNOSIS CODE SET CONDITIONS PROBABLE CAUSES • ETACS-ECU or ASC-ECU which was equipped with other vehicle is used. • Malfunction of ETACS-ECU • ASC-ECU malfunction • External noise interference DIAGNOSIS PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 2. NO : Repair the CAN bus lines (Refer to GROUP − CAN Bus Diagnostics Table ). On completion, go to Step 6. STEP 2. M.U.T.-III diagnosis code Q: Is the diagnosis code set? YES : Troubleshoot for the relevant diagnosis code (Refer to ). NO : Go to Step 3. |