Toyota Sienna Service Manual: 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:

Power slide door touch sensor
INSPECTION 1. INSPECT POWER SLIDE DOOR TOUCH SENSOR LH Check the resistance of the sensor. Resistance If the result is not as specified, replace the sensor. 2. INSPECT POWER SLIDE DOOR TOUCH SENSOR RH Check the resistance of the sensor. Resistance If the result is not a ...

Check that initialization has been completed
(a) Confirm that the data of tire pressure of all tires are displayed on the intelligent tester screen. Tester Display Measurement Item/Range Normal Condition Diagnostic Note TIREPRESS1 ID1 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 ...

Short in Rear Curtain Shield Squib LH Circuit
DTC B1635/87 Short in Rear Curtain Shield Squib LH Circuit DESCRIPTION The rear curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly LH. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B1635/87 ...