|
|
TROUBLESHOOTING ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-59 Code No.C1707: Implausible coding data CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior − CAN Bus Diagnostics Table ). • Whenever ECU is replaced, ensure that the CAN bus lines are normal. • When diagnosis code No.C1707 is set in ASC-ECU, the diagnosis code may also be set • When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the and OPERATION ASC-ECU receives the vehicle information stored in DIAGNOSIS CODE SET CONDITIONS When received invalid coding data from the PROBABLE CAUSES • Malfunction of ETACS-ECU • ETACS-ECUs have been interchanged between two vehicles. • ASC-ECU malfunction • ASC-ECUs have been interchanged between two vehicles. • Malfunction of ETACS-ECU coding data • Engine-ECU malfunction DIAGNOSTIC PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 3. NO : Repair the CAN bus lines (Refer to GROUP − CAN Bus Diagnostics Table ). On completion, go to Step 2. STEP 2. Diagnosis code recheck after resetting Q: Is diagnosis code No.C1707 set? YES : Go to Step 3. NO : This diagnosis is complete. STEP 3. M.U.T.-III other system diagnosis code Q: Is the diagnosis code set? YES : Troubleshoot for the relevant diagnosis code. NO : Go to Step 4. STEP 4. Check part number of ASC-ECU Q: Is the check result normal? YES : Go to Step 5. NO : Replace the hydraulic unit (integrated with ). Then go to Step 9. STEP 5. ETACS-ECU coding data check − Coding List . Q: Is the check result normal? YES : Go to Step 6. NO : Replace the ETACS-ECU (Refer to GROUP − ETACS-ECU ). STEP 6. Check part number of ETACS-ECU Q: Is the check result normal? YES : Go to Step 7. NO : Replace the ETACS-ECU (Refer to GROUP − ETACS-ECU ). STEP 7. Engine-ECU coding data check − Coding List . Q: Is the check result normal? YES : Go to Step 8. NO : Replace the engine-ECU (Refer to GROUP − Engine-ECU ). STEP 8. Check whether the diagnosis code is Erase the diagnosis code. Q: Is diagnosis code No.C1707 set? |