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ETACS CHASSIS ELECTRICAL 54A-507 Q: Is the diagnosis code set? YES : Replace the ETACS-ECU and register the ID codes (Refer to ). After replacing the ECU, carry out the CAN bus NO : A poor connection, open circuit or other − How to Cope with Intermittent Malfunctions ). STEP 5. Check whether the diagnosis code is position to "ON" position. (3) On completion, check that the diagnosis code is reset. Q: Is the diagnosis code set? YES : Return to Step 1. NO : The procedure is complete. Code No.U1150: Vehicle speed failure information COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES • Malfunction of the vehicle speed sensor • Malfunction of the engine-ECU • Malfunction of the ETACS-ECU • Malfunction of the CAN bus 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 ). On completion, go to Step 3. STEP 2. Check the diagnosis code of the engine- Q: Is the diagnosis code set? YES : Diagnose the engine-ECU. Refer to GROUP 13A − Troubleshooting . On completion, go to Step 3. NO : Go to Step 3. STEP 3. Check whether the diagnosis code is position to "ON" position. (3) On completion, check that the diagnosis code is reset. Q: Is the diagnosis code set? YES : Replace the ETACS-ECU and register the ID codes (Refer to ). After replacing the ECU, carry out the CAN bus NO : The procedure is complete. DATA LIST REFERENCE TABLE M1545001300550 Use the M.U.T.-III to check "Service Data." NOTE: If a problem is found in the "Service Data" 1. The following input signals can be checked by using the M.U.T.-III. INPUT SIGNALS WHICH CAN BE CHECKED BY Item No. Item name Check condition Normal condition 19 Driver's door switch Driver's door: Open ON Driver's door: Closed OFF |