Toyota Tacoma 2015-2018 Service Manual: 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.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Low pedal or spongy pedal |
Fluid leakage in brake system |
- |
|
Air in brake system (for Hydraulic brake booster) |
|
|
|
Air in brake system (for Vacuum brake booster) |
|
|
|
Piston seal (Worn or damaged) |
|
|
|
Cylinder cup |
|
|
|
Rear brake (Shoe clearance out of adjustment) |
|
|
|
Brake master cylinder (Faulty) (for Vacuum brake booster) |
|
|
|
Hydraulic brake booster (Faulty) (for Hydraulic brake booster) |
|
|
|
Booster push rod (Out of adjustment) (for Vacuum brake booster) |
|
|
|
Brake drag |
Brake pedal free play (Minimum) |
|
|
Parking brake pedal travel (Out of adjustment) |
|
|
|
Parking brake wire (Sticking) |
|
|
|
Rear brake (Shoe clearance out of adjustment) |
|
|
|
Pad (Cracked or distorted) |
|
|
|
Brake shoe (Cracked or distorted) |
|
|
|
Front disc brake piston |
|
|
|
Piston (Stuck) |
|
|
|
Front disc brake piston (Frozen) |
|
|
|
Piston (Frozen) |
|
|
|
Tension or return spring (Faulty) |
|
|
|
Booster push rod (Out of adjustment) (for Vacuum brake booster) |
|
|
|
Booster system (Vacuum leakage) (for Vacuum brake booster) |
|
|
|
Brake master cylinder (Faulty) (for Vacuum brake booster) |
|
|
|
Hydraulic brake booster (Faulty) |
|
|
|
Brake pull |
Front disc brake piston (Stuck) |
|
|
Piston (Stuck) |
|
|
|
Pad (Oily) |
|
|
|
Brake shoe (Oily) |
|
|
|
Front disc brake piston (Frozen) |
|
|
|
Piston (Frozen) |
|
|
|
Front disc (Scored) |
|
|
|
Pad (Cracked or distorted) |
|
|
|
Brake shoe (Cracked or distorted) |
|
|
|
Firm pedal but braking inefficient |
Fluid leakage in brake system |
- |
|
Air in brake system (for Hydraulic brake booster) |
|
|
|
Air in brake system (for Vacuum brake booster) |
|
|
|
Pad (Worn) |
|
|
|
Brake shoe (Worn) |
|
|
|
Pad (Cracked or distorted) |
|
|
|
Brake shoe (Cracked or distorted) |
|
|
|
Rear brake (Shoe clearance out of adjustment) |
|
|
|
Pad (Oily) |
|
|
|
Brake shoe (Oily) |
|
|
|
Pad (Glazed) |
|
|
|
Brake shoe (Glazed) |
|
|
|
Front disc (Scored) |
|
|
|
Booster push rod (Out of adjustment) (for Vacuum brake booster) |
|
|
|
Booster system (Vacuum leakage) (for Vacuum brake booster) |
|
|
|
Noise from brakes |
Pad (Cracked or distorted) |
|
|
Brake shoe (Cracked or distorted) |
|
|
|
Installation bolt (Loose) |
|
|
|
Front disc (Scored) |
|
|
|
Pad (Dirty) |
|
|
|
Brake shoe (Dirty) |
|
|
|
Pad (Glazed) |
|
|
|
Brake shoe (Glazed) |
|
|
|
Tension or return spring (Faulty) |
|
|
|
Anti-squeal shim (Damaged) |
|
|
|
Shoe hold-down spring (Damaged) |
|
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Precaution
PRECAUTION
1. Necessary care must be taken to replace each part properly as it could affect
the brake system performance. This could cause driving hazards. Replace each part
with an identical par ...
Front Brake
...
Other materials:
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT WIPER MOTOR (for Driver Side)
Text in Illustration
*a
Matchmark
(a) Check the stop (park) position.
(b) Operate the windshield wiper motor assembly.
(c) Stop the windshield wiper motor assembly operation.
(d) Ch ...
Screen Flicker or Color Distortion
PROCEDURE
1.
CHECK DISPLAY SETTING
(a) Reset display settings (contrast, brightness) and check that the screen appears
normal.
OK:
The display returns to normal.
OK
END
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN ...
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the negative (-) battery terminal. Therefore, make sure to read the
disconnecting the cable from the negative (-) battery terminal notices before pr ...