Toyota Sienna Service Manual: Electronic circuit inspection procedure

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 ...

Basic inspection

(a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS (1) Unless otherwise stated, all resistance measurements should be made at an ambient temperature of 20°C (68°F). Resistance measurements may b ...

Other materials:

Open in Side Squib RH Circuit
DTC B0111/44 Open in Side Squib RH Circuit DESCRIPTION The side squib RH circuit consists of the center airbag sensor assembly and the front seat side airbag assembly RH. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B0111/44 is recorded when an open circ ...

Removal
1. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY  Push the right side wall and then push the left wall to release the stoppers. Pull the glove compartment door sub-assembly rearward to remove it. 2. REMOVE NO. 2 INSTRUMENT PANEL BOX  Disengage the 2 claws and 4 cl ...

Terminals of ECU
1. RADIO RECEIVER (10 SPEAKER SYSTEM) *1: with Rear Seat Entertainment System 2. RADIO RECEIVER (6 SPEAKER SYSTEM) *1: with Rear Seat Entertainment System *2: without Rear Seat Entertainment System 3. STEREO COMPONENT AMPLIFIER 4. TELEVISION DISPLAY ASSEMBLY ...