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TROUBLESHOOTING ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-45 STEP 24. Diagnosis code recheck Q: Is the diagnosis code No. C1225 set? YES : . Intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent .) NO : . This diagnosis is complete. Code No. C1226: Control solenoid valve (FR) pressure holding system
Code No. C1231: Control solenoid valve (FR) decompressing system
Code No. C1236: Control solenoid valve (FL) pressure holding system
Code No. C1241: Control solenoid valve (FL) pressure reducing system
Code No. C1246: Control solenoid valve (RR) pressure holding system
Code No. C1251: Control solenoid valve (RR) pressure reducing system
Code No. C1256: Control solenoid valve (RL) pressure holding system
Code No. C1261: Control solenoid valve (RL) decompressing system
Code No. C1300: Cut valve (FR/RL) <primary> system
Code No. C1305: Suction valve (FR/RL) <primary> system
Code No. C1310: Cut valve (FL/RR) <secondary> system
Code No. C1315: Suction valve (FL/RR) <secondary> system CAUTION If there is any problem in the CAN bus lines, an OPERATION • ASC-ECU contains the power supply circuit (ter- minal No. 44) for the solenoid valve, cut valve, • The valve relay, which is incorporated in ASC-ECU, is energising the solenoid valve, cut • ASC-ECU activates the solenoid valve by turning on its driving transistor. DIAGNOSIS CODE SET CONDITIONS Code No. C1226, C1231, C1236, C1241, C1246, C1251, C1256 and C1261. • These codes are set when the ASC-ECU drive signal does not match the feed back signal from Code No. C1300, C1305, C1310, and C1315 • These codes are set when an abnormality is detected in ASC-ECU. PROBABLE CAUSES • Damaged wiring harness and connectors • ASC-ECU malfunction DIAGNOSTIC PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Replace the ASC-ECU. NO : Repair the CAN bus lines. (Refer to GROUP completion, go to Step 2. STEP 2. Diagnosis code recheck after resetting Q: Are the diagnosis code C1226, C1231, C1236, C1241, C1246, C1251, C1256, C1261, C1300, C1305, Replace the ASC-ECU. NO : This diagnosis is complete. Main Index Group TOC |