Toyota Sienna Service Manual: How to proceed with troubleshooting

Check and replace ecu

NOTICE: • The connector should not be disconnected from the ECU. Perform the inspection from the backside of the connector on the wire harness side. • When no measuring condition is s ...

Operation flow

HINT: Perform troubleshooting in accordance with the procedures below. The following is an outline of basic troubleshooting procedures. Confirm the troubleshooting procedures for the circuit you a ...

Other materials:

Removal
1. Drain automatic transaxle fluid (a) Remove the drain plug, gasket and drain ATF. (b) Install a new gasket and the drain plug. Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf) 2. Drain transfer oil (for 4wd) Hint: (see page tf-8) 3. Remove front wheel 4. REMOVE FRONT AXLE HUB LH NUT (a) Us ...

Open in Front Passenger Side Squib Circuit
DTC B0106/54 Open in Front Passenger Side Squib Circuit DESCRIPTION The front passenger side squib circuit consists of the center airbag sensor assembly and the front passenger airbag assembly. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B0106/54 is rec ...

Oxygen Sensor Circuit
HINT: Sensor 2 refers to the sensor mounted behind the Three-Way Catalytic Converter (TWC) and located far from the engine assembly. DESCRIPTION A three-way catalytic converter (TWC) is used in order to convert the carbon monoxide (CO), hydro carbon (HC), and nitrogen oxides (HOx) into ...