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:
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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Transfer Shift Motor Control Circuit Circuit Open (P17A8,P17A9)
DESCRIPTION This DTC is detected when an open circuit or short to ground is detected in the transfer shift motor drive circuit. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area P17A8 Ignition switch ON (when transfer shift motor is not opera ...
