Toyota Tacoma (2015-2018) Service Manual: System Description
SYSTEM DESCRIPTION
1. SYSTEM DESCRIPTION
(a) The Electronic Controlled Automatic Transmission (ECT) is an automatic transmission that has its shift timing electronically controlled by the ECM. The ECM detects electrical signals that indicate engine and driving conditions, and controls the shift point, based on driver's habits and road conditions. As a result, fuel efficiency and transmission performance are improved.
Shift shock has been reduced by controlling the engine and transmission simultaneously.
In addition, the ECT has features such as:
- Diagnostic function.
- Fail-safe function for use when a malfunction occurs.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
The ECM of this system is connected to the CAN communication system.
Therefore, before starting troubleshooting, make sure to check that there
is no tro ...
System Diagram
SYSTEM DIAGRAM
The configuration of the electronic control system in the AC60E automatic transmission
is as shown in the following chart.
...
Other materials:
Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION
The millimeter wave radar sensor assembly is connected to the forward recognition
camera via CAN communication.
The millimeter wave radar sensor assembly operates the pre-collision alarm by
sending a buzzer request signal to the skid control buzzer.
If the millimeter wave radar se ...
Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION
Based on dynamic radar cruise control system operation, the forward recognition
camera provides warnings to the driver by sounding the skid control buzzer.
DTC C1A4A is stored when a malfunction is detected in the skid control buzzer
circuit.
DTC No.
Detectio ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL SPIRAL CABLE SUB-ASSEMBLY WITH SENSOR
(a) Check that the ignition switch is off.
(b) Check that the battery negative (-) terminal is disconnected.
CAUTION:
Wait at least 90 seconds after disconnecting the ca ...
