SYSTEM DIAGRAM The configuration of the electronic control system for the A760E automatic transmission is as shown in the following chart. 
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Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Switching Valve Stuck Open Bank1 (P2440-P2443)
DESCRIPTION Refer to DTC P0412 (See page ). DTC No. DTC Detection Condition Trouble Area P2440 Cumulative pressure pulsation is 60 kPa (450 mmHg) or more for 2 seconds (1 trip detection logic). Air switching valve (ASV) assembly Open or short in ASV circuit Secondary air injection system piping Pres ...
