Toyota Sienna Service Manual: System diagram

Definition of terms

Terms Definitions Monitor Description Description of what ECM monitors and how to detect malfunctions (monitoring purpose and details). Related DTCs A gro ...

How to proceed with troubleshooting

HINT: The intelligent tester can be used in steps 2, 3, 4, 6 and 9. 1 VEHICLE BROUGHT TO WORKSHOP 2 CONNECT INTELLIGENT TESTER TO DLC3 HINT: If the display indicates a communication fault in th ...

Other materials:

Passenger Airbag ON/OFF Indicator Circuit Malfunction
DTC B1152/28 Passenger Airbag ON/OFF Indicator Circuit Malfunction DESCRIPTION The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and passenger airbag ON/OFF indicator. This circuit indicates the operation condition of the front passenger airbag, t ...

Disassembly
1. REMOVE STOP LIGHT SWITCH ASSEMBLY (a) Turn the stop light switch assembly counterclockwise and remove the stop light switch assembly. (b) Remove the stop light switch mounting adjuster from the brake pedal support sub-assembly. 2. REMOVE STOP LIGHT SWITCH CUSHION (a) Remove the stop ligh ...

Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm: Unlock the doors using the entry function (vehicles with a smart key system) or wireless remote control. Vehicles without a smart key system: Turn the engine switch to the “ACC” or “ON” position, or start the engine. Veh ...