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:

Diagnostic trouble code chart
1. DTCS FOR OCCUPANT CLASSIFICATION SYSTEM If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the page listed for that circuit). HINT: When DTC B1150/23 is detected as a result of troubleshooting for the airbag system, pe ...

Diagnostic trouble code chart
HINT: If a trouble code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, turn to the page for the respective DTC Code. in the DTC chart. Inspect the fuse and relay before investigating the trouble areas as shown in the table below. ...

Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION The meter CPU receives engine coolant temperature signals from the ECM via the multiplex communication lines. The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM. WIRING DIAGRAM INSPECTION PROCEDURE HINT: If there is ...