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AUTOMATIC SPEED CONTROL DEVICE (ASCD) ACS-17 [ASCD] C D E F G H I J L M A B ACS Trouble Diagnoses AKS002PJ SYMPTOM CHART *1: It indicates that system is in fail-safe. After completing diagnostic procedures, perform “FAIL-SAFE SYSTEM CHECK” ( ) to verify repairs. PROCEDURE Diagnostic procedure REFERENCE PAGE (ACS- ) SYMPTOM F A IL- SAFE SYSTEM CH E C K POW E R SUPP L Y AND GROUND CIRCUI T CHECK ASCD BRAKE/ST O P LAM P SW IT CH CHECK ASCD STEERING SW IT CH CHECK VEHICLE SPEED SENSOR CHECK ASCD PUMP CIRCUI T CHECK ASCD ACTUA T O R /PUMP CH E C K ECM SI GNAL CHECK TCS MONI T O R CHECK ASCD cannot be set. (“CRUISE” indicator X X*3 ASCD cannot be set. (“SET” indicator lamp X X X X ASCD cannot be set. (“SET” indicator lamp X X X X X Vehicle speed does not decrease after SET/ X X Vehicle speed does not return to the set X X Vehicle speed does not increase after X X X System is not released after CANCEL switch X X Large difference between set speed and X X X X Deceleration is greatest immediately after X X X X |