Toyota Sienna 2010-2024 Owners Manual: Theft deterrent system

Exhaust gas precautions

Harmful substance to the human body is included in exhaust gases if inhaled. WARNINGExhaust gases include harmful carbon monoxide (CO), which is colorless and odorless. Observe the fol ...

Engine immobilizer system

The vehicle’s keys have built-in transponder chips that prevent the engine from starting if a key has not been previously registered in the vehicle’s on-board computer. Never leave the keys i ...

Other materials:

Rear Clearance Sonar Sensor LH Circuit
DESCRIPTION An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU. WIRING DIAGRAM INSPECTION PR ...

ECM / PCM Internal Engine Off Timer Performance
DTC SUMMARY DESCRIPTION To ensure the accuracy of the EVAP (Evaporative Emission) monitor values, the soak timer, which is built into the ECM, measures 5 hours (+/- 15 minutes) from when the ignition switch is turned off, before the monitor is run. This allows the fuel to cool down, whic ...

Actuator check
1. ACTUATOR CHECK (a) After entering the DTC check mode (Sensor Check Mode), press the R/F switch. (b) As each damper, motor and relay automatically operate actuator check at 1-second intervals from step No. 1 to No. 10 continuously, check the temperature and air flow visually and by hand. ...