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:
Front Speed Sensor RH Malfunction (C1401,C1402)
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the
skid control ECU (brake actuator assembly). These signals are used for brake control.
The speed sensor rotors have rows of alternating N and S magnetic poles and their
magnetic fields change when the roto ...
Pattern Select Switch Power Mode Circuit
DESCRIPTION
The ECM memory contains the programs for the normal and PWR shift patterns.
By following the programs corresponding to the signals from the pattern select
switch assembly, park/neutral position switch and other various sensors, the ECM
switches the shift solenoid valves on and off, ...
System Description
SYSTEM DESCRIPTION
1. NAVIGATION SYSTEM OUTLINE
(a) Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle
position and displays it on the map. There are 2 methods to track the current vehicle
position: autonomous (dead reckoning) and ...
