Toyota 4Runner: System Description
SYSTEM DESCRIPTION
1. SYSTEM DESCRIPTION
(a) The Electronic Controlled Automatic Transmission (ECT) is an automatic transmission that electronically controls shift timing using the Engine Control Module (ECM). The ECM detects electrical signals that indicate engine and driving conditions, and controls the shift point based on driver habits and road conditions. As a result, fuel efficiency and power transmission performance are improved.
Shift shock is reduced by controlling the engine and transmission simultaneously.
In addition, the ECT has the following features:
- Diagnostic function.
- Fail-safe function when a malfunction occurs.
System Diagram
SYSTEM DIAGRAM
The configuration of the electronic control system for the A750E automatic transmission
is as shown in the following chart.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
The ECM is connected to the CAN communication system. Therefore, before
starting troubleshooting, make sure to check that there is no trouble in
the CAN ...
Other materials about Toyota 4Runner:
Light Control Rheostat
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT LIGHT CONTROL RHEOSTAT (w/o TAIL Cancel Switch)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Conn ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE HOOD TO RADIATOR SUPPORT SEAL
(a) Using a clip remover, remove the 7 clips and hood to radiator support
seal.
NOTICE:
If the clips are damaged or fall off, replace them with new clips.
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