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Problem Symptoms Table

  1. SYMPTOM TROUBLESHOOTING [ANTILOCK BRAKE SYSTEM (ABS)] 
    • Verify the symptoms, and perform troubleshooting according to the appropriate number.
    No. Symptom
    1 Any of the following lights are not illuminated when the ignition is switched ON:
    • ABS warning light
    • Brake warning light
    2 ABS warning light remains illuminated
    3 Brake warning light remains illuminated
    4 A malfunction in the system even though the ABS warning light and brake warning light are not illuminated
    5 ABS operates frequently
    Troubleshooting item 1 2 3 4 5
    Any of the following lights are not illuminated when the ignition is switched ON:
    • ABS warning light
    • Brake warning light
    		 ABS warning light remains illuminated Brake warning light remains illuminated A malfunction in the system even though the ABS warning light and brake warning light are not illuminated ABS operates frequently
    Brake actuator does not operate Applied Applied Applied    
    Communication error between brake actuator and combination meter Applied Applied Applied    
    Brake actuator internal malfunction Applied Applied Applied    
    Combination meter malfunction Applied Applied Applied    
    Brake fluid amount is low     Applied    
    Brake actuator detected malfunction (input and output device malfunction)   Applied Applied   Applied
    Brake actuator detects low voltage in power supply   Applied Applied    
    Brake actuator ground malfunction Applied Applied Applied    
    No connection at Brake actuator connector   Applied Applied    
    Parking brake does not release     Applied    
    Parking brake switch or brake fluid level sensor stuck on     Applied    
    Short to ground in wiring harness between parking brake switch and combination meter     Applied    
    Short to ground in wiring harness between brake fluid level sensor and main body ECU     Applied    
    Mechanical malfunction in system       Applied  
    Incorrect ABS wheel-speed signal is inputted to brake actuator   Applied     Applied
    Difference in size, air pressure or wear conditions between front and rear tires         Applied
    Brake actuator initial setting has not been performed after replacing brake actuator   Applied      
    Input signal malfunction from combination meter (parking brake signal)     Applied    
    Communication error between brake actuator and ECM   Applied      
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