Toyota Tundra Service Manual: System Diagram

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)	Receiving ECU	Signal	Communication Method
Skid control ECU	4 wheel drive control ECU	Wheel speed sensor error signal Wheel speed signal Vehicle wheel sensor power supply decline status signal Vehicle speed signal	CAN communication system
ECM	4 wheel drive control ECU	Shift position P signal Shift position N signal	CAN communication system
4 wheel drive control ECU	Combination meter assembly	4WD indicator ON and flashing request signal L4 indicator ON and flashing request signal Buzzer sound demand signal	CAN communication system
4 wheel drive control ECU	Skid control ECU	Motor energizing signal 4WD status signal L4 status signal	CAN communication system
4 wheel drive control ECU	ECM	Cruise control cancel request signal 4WD status signal	CAN communication system

Toyota Tundra Service Manual > Sfi System: Camshaft Position Sensor Circuit (P0340,P0342,P0343,P0345,P0347,P0348)
DESCRIPTION The intake camshaft's Variable Valve Timing (VVT) sensor (VV1 and VV2 signal) consists of a magnet and MRE (Magnetoresistive Element). The intake camshaft has a sensor plate with 3 teeth on its outer circumference. When the intake camshaft rotates, changes occur in the air gaps between t ...

Toyota Tundra Owners Manual