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TROUBLESHOOTING ANTI-SKID BRAKING SYSTEM (ABS) 35B-39 YES : Carry out the applicable troubleshooting for the diagnosis code (Refer to NO : The procedure is complete. 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 ABS-ECU, the diagnosis code may also be set OPERATION ABS-ECU receives the vehicle information stored in DIAGNOSIS CODE SET CONDITIONS When received unset coding data from the PROBABLE CAUSES • Malfunction of ETACS-ECU • ETACS-ECUs have been interchanged between two vehicles. • ABS-ECU malfunction • ABS-ECUs have been interchanged between two vehicles. • Malfunction of ETACS-ECU coding data 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 ABS-ECU Q: Is the check result normal? YES : Go to Step 5. NO : Replace the hydraulic unit (integrated with ). Then go to Step 8. 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. Check whether the diagnosis code is Q: Is diagnosis code No.C1707 set? |