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Toyota Sienna Service Manual: How to troubleshoot ecu controlled systems

Toyota Sienna Service Manual / Introduction / How to troubleshoot ecu controlled systems

Vehicle lift and support locations
1. NOTICE ABOUT VEHICLE CONDITION WHEN JACKING UP VEHICLE (a) The vehicle must be unloaded before jacking up/ lifting up the vehicle. Never jack up/lift up a heavily loaded vehicle. (b) When re ...

General information
A large number of ECU controlled systems are used in the SIENNA. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoo ...

Other materials:

Precaution
1. TIRE PRESSURE WARNING SYSTEM PRECAUTION (a) When the tire pressure warning light comes on, immediately check the tire pressure of the tire and adjust it to the specified value. (The tire pressure warning light will come on after blinking for 1 minute if there is an open in the tire press ...

Intermediate Shaft Speed Sensor "A"
DESCRIPTION This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal (NC) with the direct clutch speed sensor signal (NT), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according ...

Folding down the third seats (power seats)
You can operate the power third seats when the shift lever is in P. Before folding the third seats Lower the center head restraint to the lowest position and stow the seat belt buckles. Stow the center seat belt. Folding down the third seatbacks Press the folding/returning ...

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