Toyota Tacoma (2015-2018) Service Manual: Utility
UTILITY
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle. As a result, a DTC may be stored.
- If the millimeter wave radar sensor assembly has been replaced, be sure
to perform millimeter wave radar sensor assembly adjustment.
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Control Mode
HINT:
- This mode is used to check the operation of the pre-collision system when reproducing situations when the pre-collision system operated unnecessarily.
- Operating the pre-collision brake assist control or pre-collision braking
control when reproducing problem symptoms may lead to a dangerous situation.
To avoid this, do not attempt to operate the pre-collision braking control,
only operate the pre-collision warning control (buzzer and warning message)
when reproducing the problem symptoms.
PCS Control Operated
Buzzer Sound
Pre-collision warning control
Intermittent (Long)
Pre-collision brake assist control
Intermittent (Short)
Pre-collision braking control
Continuous
(a) Connect the Techstream to the DLC3.
(b) Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Control Mode.
(c) Perform Control Mode according to the display on the Techstream.
Front Beam Axis Adjustment
HINT:
Front Beam Axis Adjustment of the millimeter wave radar sensor assembly is performed using the Techstream.
(a) Perform Front Beam Axis Adjustment according to the display on the Techstream.
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Front Beam Axis Misalignment Reading
HINT:
The amount of misalignment of the millimeter wave radar sensor assembly can be checked using the Techstream.
(a) Perform Front Beam Axis Misalignment Reading according to the display on the Techstream.
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Front Beam Axis Offset Reading
HINT:
The offset of the millimeter wave radar sensor assembly can be checked using the Techstream.
(a) Perform Front Beam Axis Offset Reading according to the display on the Techstream.
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History Clear
HINT:
If the status of any history data is "ON", clear the history data.
(a) Connect the Techstream to the DLC3.
(b) Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / History Clear.
(c) Perform History Clear according to the display on the Techstream.
Terminals Of Ecu
TERMINALS OF ECU
CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY
(a) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wir ...
Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
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FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned
by the P ...
Other materials:
Transfer L4 Position Switch Circuit (C1268)
DESCRIPTION
A-TRAC is activated if wheel skid is detected while the transfer is in the L4
position.
DTC Code
DTC Detecting Condition
Trouble Areas
C1268
L4 detection switch signal input to skid control ECU (master cylinder
solenoid ...
System Diagram
SYSTEM DIAGRAM
This is a detailed diagram related to the main body ECU (multiplex network body
ECU).
Component
Function
Front door outside handle assembly LH
Receives request signals from the certification ECU (smart key ECU assembly) ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
PROCEDURE
1. INSTALL REAR AIRBAG SENSOR LH
(a) Check that the ignition switch is OFF.
(b) Check that the cable is disconnected from the battery negative (-) terminal.
CAUTION:
After disconnecting the cable from the terminal, wait for at least 90 seconds
...
