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 > Vehicle Stability Control System: Center Differential Lock Circuit (C1340)
DESCRIPTION The skid control ECU monitors the 2WD/4WD state from both the 4 wheel drive control ECU and the A.D.D. detection switch. DTC No. Detection Item DTC Detection Condition Trouble Area C1340 Center Differential Lock Circuit On a 4WD vehicle, a normal A.D.D. detection switch signal is input v ...
