Toyota Tundra Service Manual: 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.
    Road Test

    System Diagram

    See More:

    Toyota Tundra Service Manual > Audio And Visual System: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)
    PROCEDURE 1. REPLACE DISC WITH ANOTHER AND RECHECK (a) Replace the disc with a known good one and check that the malfunction disappears. OK: Malfunction disappears. Result Result Proceed to OK A NG (for Column Shift Type) B NG (for Floor Shift Type) C A END (DISC IS DEFECTIVE) B REPLACE RADIO AND DI ...

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