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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
- When replacing the combination meter assembly, make sure to replace it with a new one.
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Lane departure alert system does not operate |
Power source circuit |
|
|
Lane departure alert main switch circuit |
|
|
|
CAN communication system |
|
|
|
Forward recognition camera |
|
|
|
Lane departure alert indicator abnormal (Does not turn on) |
Lane departure alert indicator circuit |
|
|
Lane departure alert main switch circuit |
|
|
|
CAN communication system |
|
|
|
Combination meter assembly |
|
|
|
Forward recognition camera |
|
|
|
Lane departure alert indicator abnormal (Remains on) |
Lane departure alert indicator circuit |
|
|
Lane departure alert main switch circuit |
|
|
|
CAN communication system |
|
|
|
Combination meter assembly |
|
|
|
Forward recognition camera |
|
|
|
Lane departure alert system is not canceled even when turn signal light switch is operated |
Data List / Active Test (Check turn signal switch signal) |
|
|
Turn signal light switch circuit |
|
|
|
Forward recognition camera |
|
|
|
Increase in cases that driver can see line markers but system cannot detect lane markers |
Windshield glass is dirty |
- |
|
Forward recognition camera is dirty |
- |
|
|
Headlight assemblies are dirty or worn |
- |
|
|
Non-standard suspension is installed |
- |
|
|
Non-standard tires are installed |
- |
|
|
Non-Toyota genuine windshield glass is installed |
- |
|
|
There is a foreign object or foreign matter between the windshield glass and forward recognition camera |
- |
|
|
A sticker or similar item is attached to the area in front of the forward recognition camera |
- |
|
|
Adjust forward recognition camera |
|
|
|
Forward recognition camera |
|
|
|
Lane departure alert system is operating, but no operation condition is displayed on multi-information display in combination meter assembly |
Data List / Active Test (Check the item LDA Control) |
|
|
Combination meter assembly |
|
|
|
Forward recognition camera |
|
|
|
Buzzer does not sound even when lane markers are lost while lane departure warning function is operating |
Combination meter assembly |
|
|
Forward recognition camera |
|
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Customize Parameters
CUSTOMIZE PARAMETERS
CUSTOMIZE LANE DEPARTURE ALERT SYSTEM
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to ...
Utility
UTILITY
NOTICE:
If the forward recognition camera has been replaced due to a malfunction in the
lane departure alert system, be sure to perform Recognition Camera/Target Position
Memory and Opti ...
Other materials:
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On
Board Diagnostics) checks. The OBD system monitors the operation of the emission
control system.
■ If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in the emiss ...
Abbreviations Used In Manual
ABBREVIATIONS USED IN MANUAL
Abbreviations
Meaning
ABS
Anti-Lock Brake System
A/C
Air Conditioner
AC
Alternating Current
ACC
Accessory
ACIS
...
Meter Illumination does not Dim at Night
DESCRIPTION
In this circuit, the combination meter assembly auto dimmer signals from the
main body ECU using the CAN communication system (CAN V1 Bus). When the combination
meter assembly an auto dimmer signal, it dims the meter illumination (warning and
indicator lights). The main body ECU ( ...