FixVault

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.
CAUTION: During diagnosis, a diagnostic trouble code associated with other system may be set 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 set, erase them all.
SYMPTOM CHART

Trouble symptom Inspection Procedure
Scan tool communication with ABS/TCL/Skid control system is impossible. Scan tool communication with all systems are impossible. Refer to DIAGNOSIS .
Scan tool communication only with ABS/TCL/Skid control system is impossible. INSPECTION PROCEDURE 1: SCAN TOOL COMMUNICATION ONLY WITH ABS/TCL/SKID CONTROL SYSTEM IS IMPOSSIBLE 
ASC OFF indicator light flashes at a rate of 2Hz INSPECTION PROCEDURE 2: ASC OFF DISPLAY FLASHES AT A RATE OF 2HZ. 
Brake warning light stays ON with the parking brake lever released INSPECTION PROCEDURE 3: BRAKE WARNING LIGHT STAYS ON WITH THE PARKING BRAKE LEVER RELEASED. 
ABS warning light does not illuminate when ignition switch is turned to the ON position (Engine stopped) 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) 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 INSPECTION PROCEDURE 6: ABS WARNING LIGHT STAYS ON AFTER THE ENGINE IS STARTED. 
ASC indicator light stays ON after the engine is started INSPECTION PROCEDURE 7: ASC WARNING DISPLAY STAYS ON AFTER THE ENGINE IS STARTED. 
ASC OFF indicator light stays ON after the engine is started INSPECTION PROCEDURE 8: ASC OFF DISPLAY STAYS ON. 
After ASC OFF switch is turned OFF, ASC system cannot be disabled INSPECTION PROCEDURE 9: AFTER ASC OFF SWITCH IS TURNED OFF, TCL/SKID CONTROL SYSTEM CANNOT BE DISABLED. 
Abnormality in brake operation INSPECTION PROCEDURE 10: ABNORMALITY IN BRAKE OPERATION 
ASC system does not operate or faulty ASC operate INSPECTION PROCEDURE 11: ASC SYSTEM DOES NOT OPERATE OR FAULTY ASC OPERATE. 
ASC-ECU power supply circuit system INSPECTION PROCEDURE 12: ASC-ECU POWER SUPPLY CIRCUIT SYSTEM