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 |
- |
- |
Pattern Select Switch Power Mode Circuit
DESCRIPTION
The ECM memory contains the programs for the normal and PWR shift patterns.
By following the programs corresponding to the signals from the pattern select
switch assembly, park/neutral position switch and other various sensors, the ECM
switches the shift solenoid valves on and off, ...
Power Outlet Socket(for Front Side)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL LOWER CENTER FINISH PANEL
(See page )
2. REMOVE NO. 1 POWER OUTLET SOCKET ASSEMBLY
(a) Using a screwdriver with its tip wrapped in protective tape, disengage
the 2 claws to remove t ...
Lost Communication with ECM (C1437)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the ECM
via the CAN communication system.
DTC Code
DTC Detection Condition
Trouble Area
C1437
When the IG1 terminal voltage is 10 V or higher and the veh ...