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Home >> Mitsubishi >> 2015 >> Outlander GT >> Repair and Diagnosis >> Brakes >> Traction Control >> Active Stability Control (ASC) System - With Diagnostics >> Diagnosis >> Trouble Symptom Chart

Trouble Symptom Chart

CAUTION:
  • ABS may operate in the following conditions without hard braking: Low mu road surface, high-speed turn, and bumpy road surface. When asking the customers, confirm that they have/have not encountered ABS operation in corresponding conditions.
  • During ABS operation, the brake pedal is pulled forward gradually, and the noise occurs at the same time. This is because the brake line pressure varies intermittently to prevent the wheel lock, and not a system malfunction.
  • During diagnosis, a diagnostic trouble code associated with other system may be stored when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are stored, erase them all.
Trouble symptom Inspection procedure number References
Scan tool (M.U.T.-III) cannot communicate with the ABS/ASC system is impossible. Scan tool (M.U.T.-III) cannot communicate with all systems. - Refer to TROUBLESHOOTING .
Scan tool (M.U.T.-III) cannot communicate only with ASC-ECU. 1 INSPECTION PROCEDURE 1: SCAN TOOL (M.U.T.-III) COMMUNICATION WITH ABS/ASC SYSTEM IS IMPOSSIBLE. 
ASC OFF light flashes at a rate of 2Hz. 2 INSPECTION PROCEDURE 2: ASC OFF LIGHT FLASHES AT A RATE OF 2HZ. 
Brake warning light stays ON with the parking brake lever released (ABS warning light is OFF). 3 INSPECTION PROCEDURE 3: BRAKE WARNING LIGHT STAYS ON WITH THE PARKING BRAKE LEVER RELEASED (ABS WARNING LIGHT IS OFF). 
ABS warning light does not illuminate when ignition switch is turned to the ON position (Engine stopped). 4 INSPECTION PROCEDURE 4: ABS WARNING LIGHT DOES NOT ILLUMINATE WHEN IGNITION SWITCH IS TURNED TO THE ON POSITION (ENGINE STOPPED). 
Brake warning light does not illuminate when the ignition switch is turned to ON position (Engine stopped). 5 INSPECTION PROCEDURE 5: BRAKE WARNING LIGHT DOES NOT ILLUMINATE WHEN THE IGNITION SWITCH IS TURNED TO ON POSITION (ENGINE STOPPED). 
ABS warning light stays ON after the engine is started. 6 INSPECTION PROCEDURE 6: ABS WARNING LIGHT STAYS ON AFTER THE ENGINE IS STARTED. 
ASC warning light stays ON after the engine is started. 7 INSPECTION PROCEDURE 7: ASC WARNING LIGHT STAYS ON AFTER THE ENGINE IS STARTED. 
ASC OFF light stays ON after the engine is started. 8 INSPECTION PROCEDURE 8: ASC OFF LIGHT STAYS ON AFTER THE ENGINE IS STARTED. 
The stability control/TCL system cannot be disabled when ASC OFF switch is pressed for 3 seconds or more to turn the system OFF. 9 INSPECTION PROCEDURE 9: THE STABILITY CONTROL/TCL SYSTEM CANNOT BE DISABLED WHEN ASC OFF SWITCH IS PRESSED FOR 3 SECONDS OR MORE TO TURN THE SYSTEM OFF. 
Abnormality in brake operation. 10 INSPECTION PROCEDURE 10: ABNORMALITY IN BRAKE OPERATION 
ASC does not operate or faulty ASC operate. 11 INSPECTION PROCEDURE 11: ASC DOES NOT OPERATE OR FAULTY ASC OPERATE. 
ASC-ECU power supply circuit system. 12 INSPECTION PROCEDURE 12: ASC-ECU POWER SUPPLY CIRCUIT SYSTEM. 
Steering wheel sensor power supply circuit system 13 INSPECTION PROCEDURE 13: STEERING WHEEL SENSOR POWER SUPPLY CIRCUIT SYSTEM 
ABS/stability control/TCL operates too frequently. 14 INSPECTION PROCEDURE 14: ABS/STABILITY CONTROL/TCL OPERATES TOO FREQUENTLY. 
HSA (Hill Start Assist) does not work. 15 INSPECTION PROCEDURE 15: HSA (HILL START ASSIST) DOES NOT WORK. 
HSA (Hill Start Assist) works on a flat road. 16 INSPECTION PROCEDURE 16: HSA (HILL START ASSIST) WORKS ON A FLAT ROAD. 
The initial check sound of hydraulic unit is loud 17 INSPECTION PROCEDURE 17: THE INITIAL CHECK SOUND OF HYDRAULIC UNIT IS LOUD. 
ESS inoperative or improper operative 18 INSPECTION PROCEDURE 18: ESS INOPERATIVE OR IMPROPER OPERATIVE 
The FCM cannot be turned on or off when the FCM ON/OFF switch is operated.(1) 19 INSPECTION PROCEDURE 19: THE FCM CANNOT BE TURNED ON OR OFF WHEN THE FCM ON/OFF SWITCH IS OPERATED. 
The FCM is cancelled in conjunction with a warning message while the FCM is activated.(1) 20 INSPECTION PROCEDURE 20: THE FCM IS CANCELLED IN CONJUNCTION WITH A WARNING MESSAGE WHILE THE FCM IS ACTIVATED. 
NOTE:
(1) Vehicles with ACC/FCM.
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