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:

Installation
1. INSTALL REAR SEAT 3 POINT TYPE BELT ASSEMBLY (for 8-Passenger) HINT: Refer to the instructions for reassembly of the rear No. 1 seat assembly (for center seat).  Install the rear seat 3 point type belt assembly with the bolt. Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf) 2. INSTALL ...

Seat heaters
For driver’s seat For front passenger’s seat On The indicator light comes on. Adjusts the seat temperature The further you move the dial upward, the warmer the seat becomes. The seat heaters can be used when the engine switch is in the “ON” position (vehicles ...

Short to B+ in Front Pretensioner Squib LH Circuit
DTC B0138/72 Short to B+ in Front Pretensioner Squib LH Circuit DESCRIPTION The front pretensioner squib LH circuit consists of the center airbag sensor assembly and the front seat outer belt assembly LH. This circuit instructs the SRS to deploy when deployment conditions are met. DTC B01 ...