Toyota Yaris: Can Communication System / System Diagram
SYSTEM DIAGRAM
(a) The CAN communication system is composed of 8 buses.
 | CAN Main Bus Line |
 | Terminating Resistor |
 | CAN Branch Line | * | Gateway Function Equipped ECU |
 | Bus Monitoring Direction | - | - |
| Connected to | Code | ECU/Sensor Name | GTS Display | Applicability |
|---|---|---|---|---|
| - | CGW | Central Gateway ECU (Network Gateway ECU) | - | Installed on all vehicles |
| - | DLC3 | DLC3 | - | Installed on all vehicles |
| Bus 1 | F-CAM | Forward Recognition Camera | Front Camera Module | w/ Toyota Safety Sense |
| F-MR | Millimeter Wave Radar Sensor Assembly | Front Radar | w/ Toyota Safety Sense | |
| CAN Global J/C NO. 7 | No. 7 Global CAN Junction Connector | - | Installed on all vehicles | |
| CAN Global J/C NO. 8 | No. 8 Global CAN Junction Connector | - | Installed on all vehicles | |
| ST | No. 1 CAN Junction Terminal | - | Installed on all vehicles | |
| Bus 2 | S&S | Engine Stop and Start ECU | Stop and Go/Start | Installed on all vehicles |
| ENG | ECM | ECM (Engine) | Installed on all vehicles | |
| CAN Global J/C NO. 6 | No. 6 Global CAN Junction Connector | - | Installed on all vehicles | |
| Bus 3 | HUD | Meter Mirror Sub-assembly | Head Up Display | w/ Headup Display |
| ANC | Stereo Component Equalizer Assembly | Active Noise Control | w/ Active Noise Control System | |
| MET | Combination Meter Assembly | Combination Meter | Installed on all vehicles | |
| CAN Global J/C NO. 4 | No. 4 Global CAN Junction Connector | - | Installed on all vehicles | |
| Bus 4 | SRS | Airbag Sensor Assembly | Airbag | Installed on all vehicles |
| BRK | Brake Actuator Assembly | Skid Control (ABS/VSC/TRAC) | Installed on all vehicles | |
| STR | Steering Sensor | Spiral cable (Steering Angle Sensor) | Installed on all vehicles | |
| EPS | Power Steering ECU Assembly | Power Steering (EPS) | Installed on all vehicles | |
| CAN Global J/C NO. 1 | No. 1 Global CAN Junction Connector | - | Installed on all vehicles | |
| CAN Global J/C NO. 2 | No. 2 Global CAN Junction Connector | - | Installed on all vehicles | |
| Bus 5 | A/C | Air Conditioning Amplifier Assembly | Air Conditioning Amplifier | Installed on all vehicles |
| SMT | Certification ECU (Smart Key ECU Assembly) |
| Installed on all vehicles | |
| MB | Main Body ECU (Multiplex Network Body ECU) | Main Body | Installed on all vehicles | |
| CAN Global J/C NO. 3 | No. 3 Global CAN Junction Connector | - | Installed on all vehicles | |
| Bus 6 | AWD | 4WD ECU Assembly | Four Wheel Drive Control | Installed on all vehicles |
| CAN Global J/C NO. 9 | No. 9 Global CAN Junction Connector | - | Installed on all vehicles | |
| Bus 7 | YGW | Option Connector (Bus Buffer ECU) | Remote Engine Starter | Installed on all vehicles |
| Chassis Local Bus | S&S | Engine Stop and Start ECU | - | Installed on all vehicles |
| BRK | Brake Actuator Assembly | - | Installed on all vehicles | |
| CAN Global J/C NO. 6 | No. 6 Global CAN Junction Connector | - | Installed on all vehicles |
Parts Location
PARTS LOCATION ILLUSTRATION
*1 FORWARD RECOGNITION CAMERA (w/ Toyota Safety Sense) *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Toyota Safety Sense) *3 BRAKE ACTUATOR ASSEMBLY *4 ECM ILLUSTRATION
*1 4WD ECU ASSEMBLY - - ILLUSTRATION
*1 COMBINATION METER ASSEMBLY *2 METER MIRROR SUB-ASSEMBLY (w/ Headup Display) *3 CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) *4 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *5 AIR CONDITIONING AMPLIFIER ASSEMBLY *6 AIRBAG SENSOR ASSEMBLY *7 POWER STEERING ECU ASSEMBLY *8 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) *9 STEERING SENSOR *10 ENGINE STOP AND START ECU *11 STEREO COMPONENT EQUALIZER ASSEMBLY (w/ Active Noise Control System) *12 POWER DISTRIBUTION BOX ASSEMBLY *13 DLC3 - - ILLUSTRATION
*1 NO...
System Description
SYSTEM DESCRIPTION BRIEF DESCRIPTION (a) The Controller Area Network (CAN) is a serial data communication system for real time application. It is a vehicle multiplex communication system which has a high communication speed and the ability to detect malfunctions...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Reassembly
REASSEMBLY CAUTION / NOTICE / HINT NOTICE: When using a vise, place aluminum plates between the part and vise. When using a vise, do not overtighten it. HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the steering angle sensor removal/installation are shown below...
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Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)