SYSTEM DIAGRAM
(a) The CAN communication system is composed of 5 buses.
*A |
w/ Blind Spot Monitor System |
- |
- |
CAN Main Bus Line |
Terminating Resistor |
||
CAN Branch Line |
* |
Gateway Function Equipped ECU |
|
Bus Monitoring Direction |
- |
- |
Connected to |
Code |
ECU/Sensor Name |
CAN DTC Storage |
Note |
---|---|---|---|---|
- |
CGW |
Central Gateway ECU (Network Gateway ECU) |
- |
- |
- |
DLC3 |
DLC3 |
- |
- |
Bus 1 |
BSM |
Blind Spot Monitor Sensor LH |
Available |
w/ Blind Spot Monitor System |
F-CAM |
Forward Recognition Camera |
Available |
w/ Toyota Safety Sense P |
|
F-MR |
Millimeter Wave Radar Sensor Assembly |
Available |
w/ Toyota Safety Sense P |
|
CAN J/C NO. 6 |
No. 6 CAN Junction Connector |
- |
w/ Blind Spot Monitor System |
|
CAN J/C NO. 1 |
No. 1 CAN Junction Connector |
- |
- |
|
Bus 2 |
ENG |
ECM |
Available |
- |
Bus 3 |
AV |
Radio and Display Receiver Assembly |
Available |
for Radio and Display Type |
DCM |
DCM (Telematics Transceiver) |
Available |
w/ Telematics Transceiver |
|
CAN J/C NO. 3 |
No. 3 Junction Connector |
- |
- |
|
Bus 4 |
STR |
Steering Sensor |
- |
- |
EPS |
Power Steering ECU Assembly |
Available |
- |
|
BRK |
Brake Actuator Assembly |
Available |
- |
|
OCS |
Occupant Detection ECU |
Available |
w/ Occupant Detection ECU |
|
SRS |
Airbag Sensor Assembly |
Available |
- |
|
CAN J/C NO. 5 |
No. 5 CAN Junction Connector |
- |
- |
|
CAN J/C NO. 4 |
No. 4 CAN Junction Connector |
- |
- |
|
Bus 5 |
A/C |
Air Conditioning Amplifier Assembly |
Available |
Connected to LIN communication system |
SMT |
Certification ECU (Smart Key ECU Assembly) |
Available |
w/ Smart Key System |
|
MB |
Main Body ECU (Multiplex Network Body ECU) |
Available |
Connected to LIN communication system |
|
LIT |
Headlight ECU Sub-assembly LH |
Available |
for LED Headlight |
|
MET |
Combination Meter Assembly |
Available |
- |
|
CAN J/C NO. 3 |
No. 3 CAN Junction Connector |
- |
- |
Toyota CH-R Service Manual > Smart Key System(for Start Function): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Smart Key System (for Start Function)
DTC No.
Detection Item
Link
B2271
Ignition Hold Monitor Malfunction
B2274
ACC Monitor Malfunction
...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION
If any of the following operations are performed, the certification ECU (smart
key ECU assembly) receives a signal, and changes the power source mode.
With the electrical key transmitter sub-assembly in the cabin, the engine
switch is pressed.
When the transmitter batt ...