Toyota Tacoma (2015-2018) Service Manual: System Description
SYSTEM DESCRIPTION
1. POWER WINDOW CONTROL SYSTEM DESCRIPTION
(a) The power window control system controls the power window operation using the power window regulator motors. The main controls of this system are the power window regulator master switch assembly (mounted on the driver door), power window regulator switch assembly (mounted on the front passenger door) and rear power window regulator switch assemblies (mounted on the rear doors). Operating a window switch results in electrical power being transmitted to the corresponding power window regulator motor.
(b) The power window control system (for back window glass) controls the power window open/close function using the power window regulator motor.
The main control of this system is the back door power window regulator switch assembly.*1
- *1: w/ Back Door Power Window
2. FUNCTION OF MAIN COMPONENTS
The power window control system consists of the following components:|
Component |
Outline |
|---|---|
|
Power Window Regulator Master Switch Assembly |
|
|
Power Window Regulator Switch Assembly |
|
|
Rear Power Window Regulator Switch Assembly*1
|
|
|
Receives switch signals and changes signals into motor activation. As a result, the window position changes. |
|
Rear NO. 2 Power Window Regulator Switch Assembly*2 |
Controls power window operation for back window glass. |
|
Power Window Regulator Motor Assembly*2 |
Receives back door power window regulator switch signals and activates motor to change window position. |
- *1: for Double Cab
- *2: w/ Back Door Power Window
3. SYSTEM FUNCTION
The power window control system has the following functions:|
Function |
Outline |
|---|---|
|
Manual up and down function |
Function that causes the window to go up while the power window switch is being pulled halfway up and to go down while it is being pushed halfway down. The window stops as soon as the switch is released. |
|
Auto down function |
Function that enables the window of the driver side door to be fully opened by one full push downward on the power window regulator master switch assembly. |
|
Window lock function |
|
|
Remote control function |
Function that allows the power window regulator master switch assembly to control manual up and down operations of the front passenger door window and rear door windows. |
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the power window control system.
PROCEDURE
1.
VEHICLE BROUGHT TO WORK SHOP
...
System Diagram
SYSTEM DIAGRAM
...
Other materials:
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE PEDAL HEIGHT
(a) Check the brake pedal height.
Pedal height from dash panel:
Type
Pedal Height
Automatic transmission
164.4 to 174.4 mm (6.473 to 6.866 in.)
Manual transmission ...
Terminals Of Ecu
TERMINALS OF ECU
1. COMBINATION METER ASSEMBLY
(a) Measure the voltage, resistance and check for pulses according to the value(s)
in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
...
Adjustment
ADJUSTMENT
CAUTION / NOTICE / HINT
NOTICE:
For vehicles equipped with VSC, if the wheel alignment has been adjusted, and
if suspension or underbody components have been removed/installed or replaced, be
sure to perform the following initialization procedure in order for the system to
functi ...
