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HEADLAMP CHASSIS ELECTRICAL 54A-106 Code No. U0141 ETACS CAN Time-out CAUTION • If the diagnosis code No. U0141 is set, be sure to diagnose the CAN bus line. • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the DIAGNOSTIC FUNCTION JUDGEMENT CRITERIA PROBABLE CAUSES • Malfunction of CAN bus line • Malfunction of ETACS-ECU • Malfunction of headlamp automatic levelling-ECU 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 line (Refer to GROUP − Troubleshooting ). STEP 2. M.U.T.-III other system diagnosis code Q: Is the diagnosis code set? YES : Troubleshoot the ETACS-ECU. (Refer to GROUP 54A − ETACS-ECU − Troubleshooting .) NO : Go to Step 3. STEP 3. Check the M.U.T.-III Diagnosis code for Q: Is the diagnosis code set? YES : Go to Step 4. NO : Go to Step 5. STEP 4. Diagnosis code recheck position to the ON position. (3) Check if the diagnosis code is set. Q: Is the diagnosis code set? YES : Replace the ETACS-ECU. NO : A poor connection, open circuit, or other − How to Use Troubleshooting/ Inspection Service Points - How to Cope STEP 5. Diagnosis code recheck position to the ON position. (3) Check if the diagnosis code is set. Q: Is the diagnosis code set? YES : Replace the headlamp automatic levelling- ECU. NO : A poor connection, open circuit, or other − How to Use Troubleshooting/ Inspection Service Points - How to Cope |