Toyota Sienna Service Manual: Problem symptoms table

Customize parameters

1. Seat Belt Buzzer ON/OFF Setting The seat belt buzzer ON/OFF setting, which is a setting of the buzzer function of the combination meter, can disable the driver side seat belt buzzer and front p ...

Terminals of ECU

1. COMBINATION METER ASSEMBLY *1: with Power Rear No. 2 Seat with Stowing Function *2: with Theft Deterrent System  Waveform 1 (Reference) : Using an oscilloscope: OK ...

Other materials:

Actuator Supply Voltage Circuit / Open
DESCRIPTION The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is higher than 7 volts when the ignition switch is turned ...

Mute Signal Circuit between Radio and Navigation Assembly and Stereo Component Amplifier
DESCRIPTION This circuit sends a signal to the stereo component amplifier to mute noise. Because of that, the noise produced by changing the sound source ceases. If there is an open in the circuit, noise can be heard from the speakers when changing the sound source. If there is a short i ...

Body
GENERAL MAINTENANCE 1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY (a) Tighten all the parts of the chassis when necessary. Steering system Drive train Suspension Brake system Engine mounting, etc. (b) Tighten all the parts of the body when necessary. Seat belts Seats Doors ...