SYSTEM DIAGRAM
1. OVERALL CAN BUS DIAGRAM
(a) The CAN communication system is composed of 4 buses.
CAN Main Bus Line |
Terminating Resistor |
||
CAN Branch Line |
* |
Gateway Function Equipped ECU |
|
Bus Monitoring Direction |
- |
- |
Bus |
Code |
ECU/Sensor Name |
CAN DTC Storage |
Note |
---|---|---|---|---|
- |
CGW |
Central Gateway ECU (Network Gateway ECU) |
- |
- |
V Bus |
DLC3 |
DLC3 |
- |
- |
Bus 2 |
ENG |
ECM |
Available |
- |
MET |
Combination Meter Assembly |
Available |
- |
|
A/C |
Air Conditioning Amplifier Assembly |
Available |
- |
|
SMT |
Certification ECU (Smart Key ECU Assembly) |
Available |
|
|
MB |
Main Body ECU (Multiplex Network Body ECU) |
Available |
The main body ECU (multiplex network body ECU) is also connected to the LIN communication system. |
|
AWD |
4 Wheel Drive Control ECU |
Available |
for 4WD |
|
BRK |
Brake Booster Assembly (Skid Control ECU) |
Available |
for Hydraulic Brake Booster |
|
Brake Actuator Assembly (Skid Control ECU) |
Available |
for Vacuum Brake Booster |
||
TPMS |
Door Control and Tire Pressure Monitoring System Receiver Assembly |
Available |
w/ Tire Pressure Warning System and Tire Inflation Pressure Display Function |
|
SRS |
Airbag Sensor Assembly |
- |
- |
|
STR |
Spiral Cable with Sensor Sub-assembly |
- |
- |
|
CAN J/C NO. 1 |
No. 1 CAN Junction Connector |
- |
- |
|
CAN J/C NO. 2 |
No. 2 CAN Junction Connector |
- |
- |
|
Bus 3 |
AV |
Navigation Receiver Assembly |
Available |
for Navigation Receiver Type |
Radio and Display Receiver Assembly |
Available |
for Radio and Display Type |
||
CAN J/C NO. 6 |
No. 6 CAN Junction Connector |
- |
- |
|
Bus 5 |
CS |
Clearance Warning ECU Assembly |
Available |
w/ Intuitive Parking Assist System |
F-CAM |
Forward Recognition Camera |
Available |
w/ Toyota Safety Sense P |
|
F-MR |
Millimeter Wave Radar Sensor Assembly |
- |
w/ Toyota Safety Sense P |
|
BSM |
Blind Spot Monitor Sensor LH |
Available |
w/ Blind Spot Monitor System |
|
CAN J/C NO. 4 |
No. 4 CAN Junction Connector |
- |
- |
|
CAN J/C NO. 5 |
No. 5 CAN Junction Connector |
- |
- |
|
CAN J/C NO. 6 |
No. 6 CAN Junction Connector |
- |
- |
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals ...
SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)
DESCRIPTION
The solenoid goes on when signals are received from the skid control ECU (master
cylinder solenoid) and controls the pressure action on the wheel cylinders thus
controlling the braking force.
DTC No.
DTC Detecting Conditions
Trouble Areas
...
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the radio and display receiver
assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the radio and display receiver assembly or speakers.
If a ...