Lexus NX: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Brake System

Symptom

Suspected Area

See page

Low or spongy pedal

Fluid leaks in brake system

-

Air in brake system

Front brake piston seals (Worn or damaged)

Rear brake piston seals (Worn or damaged)

Brake booster with master cylinder assembly (Faulty)

Brake drag

Brake pedal free play (Insufficient)

Brake pedal stroke sensor (Adjustment)

Parking brake actuator

Front brake pad (Cracked or distorted)

Rear brake pad (Cracked or distorted)

Front brake piston (Stuck)

Rear brake piston (Stuck)

Front brake piston (Seized)

Rear brake piston (Seized)

Brake booster with master cylinder assembly (Faulty)

Brake pull

Front brake piston (Stuck)

Rear brake piston (Stuck)

Front brake pad (Oily)

Rear brake pad (Oily)

Front brake piston (Seized)

Rear brake piston (Seized)

Front brake disc (Scored)

Rear brake disc (Scored)

Front brake pad (Cracked or distorted)

Rear brake pad (Cracked or distorted)

Hard pedal but brake inefficient

Fluid leaks in brake system

-

Air in brake system

Front brake pad (Worn)

Rear brake pad (Worn)

Front brake pad (Cracked or distorted)

Rear brake pad (Cracked or distorted)

Front brake pad (Oily)

Rear brake pad (Oily)

Front brake pad (Glazed)

Rear brake pad (Glazed)

Front brake disc (Scored)

Rear brake disc (Scored)

Noise from brakes

Front brake pad (Cracked or distorted)

Rear brake pad (Cracked or distorted)

Front brake installation bolt (Loose)

Rear brake installation bolt (Loose)

Front brake disc (Scored)

Rear brake disc (Scored)

Front brake pad support plate (Loose)

Rear brake pad support plate (Loose)

Front disc brake cylinder slide pin (Worn)

Rear disc brake cylinder slide pin (Worn)

Front brake pad (Dirty)

Rear brake pad (Dirty)

Front brake pad (Glazed)

Rear brake pad (Glazed)

Front brake anti-squeal shim (Damaged)

Rear brake anti-squeal shim (Damaged)

READ NEXT:

 On-vehicle Inspection

ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT NOTICE: DTCs may be stored during the inspection procedure. Be sure to clear the DTCs and check that no DTCs are output after the inspection is finished.

 Parking Brake

 Electric Parking Brake Actuator

SEE MORE:

 Noise Occurs or Sound Skips when Portable Player Plays

CAUTION / NOTICE / HINT HINT: Perform this check with the portable player volume set at an appropriate level. Make sure that there are no obstructions between the portable player and radio receiver assembly that may block signals, and that the portable player and radio receiver assembly are not

 EPB High Temperature (C13AA)

DESCRIPTION If the electric parking brake is used continuously, the parking brake actuator assembly overheat prevention stops the system. This DTC is stored to protect the system and is not a malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13AA

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