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) | |
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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.
SEE MORE:
Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch
DESCRIPTION If the manual up and down function operates normally but the auto up and down function does not, then fail-safe mode may be functioning. If power window initialization has not been performed, the auto up and down function will not operate. Click here WIRING DIAGRAM CAUTION / NOTICE /
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs. CHECK DLC3 (a) Check the DLC3. Cli
