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.
Axle System|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Wander/pulls |
Tires (Worn or improperly inflated) |
|
|
Front wheel alignment (Incorrect) |
|
|
|
Hub bearings (Loosen or worn) |
|
|
|
Steering gear (Out of adjustment or broken) |
- |
|
|
Front wheel shimmy |
Tires (Worn or improperly inflated) |
|
|
Wheels (Out of balance) |
|
|
|
Front shock absorber (Worn out) |
|
|
|
Front wheel alignment (Incorrect) |
|
|
|
Upper ball joints (Worn) |
|
|
|
Lower ball joints (Worn) |
|
|
|
Hub bearings (Loosen or worn) |
|
|
|
Steering gear (Out of adjustment or broken) |
- |
|
|
Rear wheel shimmy |
Tires (Worn or improperly inflated) |
|
|
Wheels (Out of balance) |
|
|
|
Rear shock absorber (Worn out) |
|
|
|
Hub bearings (Loosen or worn) |
|
.gif)
Axle System
...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT AXLE HUB BEARING
(a) Remove the front wheel.
(b) for 4WD:
(1) Remove the front axle hub grease cap (See page
).
(c) Remove the front disc br ...
Other materials:
Open / Short in Steering Lock ECU (B2781)
DESCRIPTION
The steering lock ECU and steering lock motor are built into the steering lock
actuator assembly.
The steering lock ECU (steering lock actuator or UPR bracket assembly) detects
whether the steering lock is in the lock or unlock position by using the lock sensor
and unlock sensor ...
Daytime Running Light Relay
Inspection
INSPECTION
PROCEDURE
1. INSPECT NO. 1 DAY TIME RUNNING LIGHT RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard:
Tester Connection
Condition
Specified ...
Air Outlet Control Servo Motor
Inspection
INSPECTION
PROCEDURE
1. INSPECT MODE CONTROL SERVO MOTOR
(a) Inspect the servo motor operation.
(1) When 12V is applied between terminals 4 (IGN) and 1 (GND), and 0V
is applied between terminals 2 (SIG) and 1 (GND), check that the line connecting
the 2 notches ...
