Toyota 4Runner manuals

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. ...

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 ...

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DESCRIPTION The rear floor side airbag sensor consists of the diagnostic circuit, rear floor deceleration sensor, etc. If the center airbag sensor receives signals from the rear floor deceleration sensor, it determines whether the SRS should be activated ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Navigation System DTC Code Detection Item See page B1532 LVDS Signal Malfunction (from Extension Module) B1551 HD Radio Tuner ...

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