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AC701122 DA Connector: C-135 <RHD> AC607219 AI Connector: C-313 <LHD> C-313 (BR) AC607229AI Connector: C-313 <RHD> C-313 (BR) TROUBLESHOOTING ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-153 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 the hydraulic unit (integrated with ASC- ECU) is replaced, always carry out the calibra- and OPERATION • ASC-ECU sends the illumination request signal of ASC OFF display to the combination meter • By the operation of ASC OFF switch, the ASC OFF display illuminates when the ASC function is • When the ASC OFF switch is pressed for 3 sec- onds or more, the ASC system turns OFF. • When the ASC OFF switch is pressed for 15 sec- onds or more, the ASC is kept in ON state and COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES • Damaged wiring harness and connectors • Malfunction of ETACS-ECU • Combination meter malfunction • ASC-ECU malfunction 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 ). Then go to Step 9. STEP 2. M.U.T.-III diagnosis code Q: Is the diagnosis code set? YES : Carry out the diagnosis for the diagnosis code chart (Refer to ). NO : Go to Step 3. STEP 3. ASC OFF switch check Q: Is the check result normal? YES : Go to Step 4. NO : Replace ASC OFF switch (Refer to ). Then go to Step 9. STEP 4. Connector check: C-313 ETACS-ECU Q: Is the check result normal? YES : Go to Step 5. NO : Repair the damaged connector. |