Note
Turn the power switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires.
Turn the power switch off before inspecting CAN bus wires for a ground short.
After the power switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.
Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the power switch, any other switches or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.
This section describes the standard CAN values for all CAN related components.
Tech Tips
Operating the power switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
CAN NO. 1 JUNCTION CONNECTOR (for LHD)
Check the CAN No. 1 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 1 Junction Connector) |
*2 | to Power Steering ECU |
| *3 | to Steering Angle Sensor | *4 | to DLC3 |
| *5 | to Combination Meter | *6 | to Main Body ECU |
| *7 | to CAN No. 2 Junction Connector | *8 | to Power Management Control ECU |
| *9 | to Center Airbag Sensor Assembly | *10 | to Yaw Rate Sensor |
Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F70-1 (CANH) | G | Power steering ECU |
| F70-12 (CANL) | R | |
| F70-2 (CANH) | BE | Steering angle sensor |
| F70-13 (CANL) | R | |
| F70-3 (CANH) | V | DLC3 |
| F70-14 (CANL) | R | |
| F70-4 (CANH) | P | Combination meter |
| F70-15 (CANL) | R | |
| F70-5 (CANH) | Y | Main body ECU |
| F70-16 (CANL) | R | |
| F70-7 (CANH) | B | CAN No. 2 junction connector |
| F70-18 (CANL) | R | |
| F70-9 (CANH) | LG | Power management control ECU |
| F70-20 (CANL) | R | |
| F70-10 (CANH) | R | Center Airbag Sensor |
| F70-21 (CANL) | L | |
| F70-11 (CANH) | BR | Yaw rate sensor |
| F70-22 (CANL) | R |
CAN NO. 2 JUNCTION CONNECTOR (for LHD)
Check the CAN No. 2 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 2 Junction Connector) |
*2 | to Skid Control ECU |
| *3 | to Certification ECU | *4 | to CAN No. 1 Junction Connector |
| *5 | to Navigation ECU | *6 | to ECM |
Check the connection diagram of the components which are connected to the CAN No. 2 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F71-1 (CANH) | GR | Skid control ECU |
| F71-12 (CANL) | R | |
| F71-2 (CANH) | LG | Certification ECU |
| F71-13 (CANL) | R | |
| F71-7 (CANH) | B | CAN No. 1 junction connector |
| F71-18 (CANL) | R | |
| F71-8 (CANH) | SB | Navigation ECU |
| F71-19 (CANL) | R | |
| F71-9 (CANH) | GR | ECM |
| F71-20 (CANL) | R |
CAN NO. 3 JUNCTION CONNECTOR (for LHD)
Check the CAN No. 3 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 3 Junction Connector) |
*2 | to Suspension Control ECU |
| *3 | to Seat Belt Control ECU | *4 |
|
| *5 | to CAN No. 4 Junction Connector | *6 | to Power Management Control ECU |
Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F67-2 (CANH) | P | Suspension Control ECU |
| F67-13 (CANL) | L | |
| F67-3 (CANH) | V | Seat Belt Control ECU |
| F67-14 (CANL) | L | |
| F67-4 (CANH) | Y |
|
| F67-15 (CANL) | L | |
| F67-6 (CANH) | BR | CAN No. 4 junction connector |
| F67-17 (CANL) | L | |
| F67-7 (CANH) | G | Power Management Control ECU |
| F67-18 (CANL) | L |
CAN NO. 4 JUNCTION CONNECTOR (for LHD)
Check the CAN No. 4 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 4 Junction Connector) |
*2 | to Driving Support ECU |
| *3 | to AFS ECU | *4 | to CAN No. 3 Junction Connector |
| *5 | to CAN No. 5 Junction Connector | - | - |
Check the connection diagram of the components which are connected to the CAN No. 4 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F68-2 (CANH) | BE | Driving support ECU |
| F68-13 (CANL) | L | |
| F68-3 (CANH) | B | AFS ECU |
| F68-14 (CANL) | L | |
| F68-4 (CANH) | BR | CAN No. 3 junction connector |
| F68-15 (CANL) | L | |
| F68-8 (CANH) | GR | CAN No. 5 junction connector |
| F68-19 (CANL) | L |
CAN NO. 1 JUNCTION CONNECTOR (for RHD)
Check the CAN No. 1 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 1 Junction Connector) |
*2 | to Main Body ECU |
| *3 | to CAN No. 2 Junction Connector | *4 | to Navigation ECU |
| *5 | to Power Management Control ECU | *6 | to Center Airbag Sensor Assembly |
| *7 | to Yaw Rate Sensor | - | - |
Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F70-5 (CANH) | Y | Main body ECU |
| F70-16 (CANL) | R | |
| F70-7 (CANH) | B | CAN No. 2 junction connector |
| F70-18 (CANL) | R | |
| F70-8 (CANH) | SB | Navigation ECU |
| F70-19 (CANL) | R | |
| F70-9 (CANH) | LG | Power management control ECU |
| F70-20 (CANL) | R | |
| F70-10 (CANH) | R | Center Airbag Sensor |
| F70-21 (CANL) | L | |
| F70-11 (CANH) | BR | Yaw rate sensor |
| F70-22 (CANL) | R |
CAN NO. 2 JUNCTION CONNECTOR (for RHD)
Check the CAN No. 2 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 2 Junction Connector) |
*2 | to Skid Control ECU |
| *3 | to Certification ECU | *4 | to DLC3 |
| *5 | to Combination Meter | *6 | to Steering Angle Sensor |
| *7 | to Power Steering ECU | *8 | to CAN No. 1 Junction Connector |
Check the connection diagram of the components which are connected to the CAN No. 2 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F71-1 (CANH) | GR | Skid control ECU |
| F71-12 (CANL) | R | |
| F71-2 (CANH) | LG | Certification ECU |
| F71-13 (CANL) | R | |
| F71-3 (CANH) | V | DLC3 |
| F71-14 (CANL) | R | |
| F71-4 (CANH) | P | Combination meter |
| F71-15 (CANL) | R | |
| F71-5 (CANH) | BE | Steering angle sensor |
| F71-16 (CANL) | R | |
| F71-6 (CANH) | G | Power steering ECU |
| F71-17 (CANL) | R | |
| F71-7 (CANH) | B | CAN No. 1 junction connector |
| F71-18 (CANL) | R |
CAN NO. 3 JUNCTION CONNECTOR (for RHD)
Check the CAN No. 3 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 3 Junction Connector) |
*2 | to CAN No. 4 Junction Connector |
| *3 | to Driving Support ECU | *4 | to AFS ECU |
| *5 | to Power Management Control ECU | - | - |
Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F67-6 (CANH) | BR | CAN No. 4 junction connector |
| F67-17 (CANL) | L | |
| F67-7 (CANH) | BE | Driving support ECU |
| F67-18 (CANL) | L | |
| F67-8 (CANH) | B | AFS ECU |
| F67-19 (CANL) | L | |
| F67-9 (CANH) | G | Power Management Control ECU |
| F67-20 (CANL) | L |
CAN NO. 4 JUNCTION CONNECTOR (for RHD)
Check the CAN No. 4 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 4 Junction Connector) |
*2 | to CAN No. 3 Junction Connector |
| *3 | to Seat Belt Control ECU | *4 |
|
| *5 | to Suspension Control ECU | *6 | to CAN No. 5 Junction Connector |
Check the connection diagram of the components which are connected to the CAN No. 4 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F68-4 (CANH) | BR | CAN No. 3 junction connector |
| F68-15 (CANL) | L | |
| F68-5 (CANH) | V | Seat belt control ECU |
| F68-16 (CANL) | L | |
| F68-6 (CANH) | Y |
|
| F68-17 (CANL) | L | |
| F68-7 (CANH) | P | Suspension Control ECU |
| F68-18 (CANL) | L | |
| F68-8 (CANH) | GR | CAN No. 5 junction connector |
| F68-19 (CANL) | L |
CAN NO. 5 JUNCTION CONNECTOR
Tech Tips
- The connectors connected to the CAN junction connectors can be distinguished according to the color of the communication bus wires.
- Reconnecting the connectors to non-specified positions on the CAN junction connectors does not affect system operation. However, it is preferred to reconnect the connectors to their original positions to avoid negative effects on the wiring such as tension on the wiring harnesses, and to make future maintenance easier.
Check the CAN No. 5 junction connectors.
| *1 | Component without harness connected (CAN No. 5 Junction Connector) |
*2 | CAN No. 5 Junction Connector B Side |
| *3 | CAN No. 5 Junction Connector A Side | *4 | Ground Terminal |
| *5 | Front view of wire harness connector (to CAN No. 5 Junction Connector) |
- | - |
Check the connection diagram of the components which are connected to the CAN No. 5 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| P56-1 | W-B | Ground |
| P55-1 (CANH) | L | CAN No. 4 junction connector |
| P55-2 (CANL) | Y | |
| P54-1 (CANH) | V | Rear active stabilizer control ECU |
| P54-2 (CANL) | LG | |
| P53-1 (CANH) | R | Front active stabilizer control ECU |
| P53-2 (CANL) | G |
CAN NO. 6 JUNCTION CONNECTOR
Check the CAN No. 6 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 6 Junction Connector) |
*2 | to Front Power Seat Switch LH |
| *3 | to CAN No. 7 Junction Connector (w/ Power Back Door System) |
*3 | to CAN No. 8 Junction Connector (w/o Power Back Door System) |
| *4 | to Main Body ECU | *5 | to Outer Mirror Control ECU LH |
Check the connection diagram of the components which are connected to the CAN No. 6 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F102-2 (CANH) | G | Front power seat switch LH |
| F102-13 (CANL) | W | |
| F102-3 (CANH) | B | CAN No. 7 junction connector (w/ power back door system) |
| F102-14 (CANL) | W | |
| F102-3 (CANH) | B | CAN No. 8 junction connector (w/o power back door system) |
| F102-14 (CANL) | W | |
| F102-4 (CANH) | BE | Main body ECU |
| F102-15 (CANL) | W | |
| F102-5 (CANH) | LG | Outer mirror control ECU LH |
| F102-16 (CANL) | W |
CAN NO. 7 JUNCTION CONNECTOR
Check the CAN No. 7 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 7 Junction Connector) |
*2 | to CAN No. 8 Junction Connector |
| *3 | Power Back Door ECU (Back Door Monitor Unit) |
*4 | to CAN No. 6 Junction Connector |
Check the connection diagram of the components which are connected to the CAN No. 7 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| P66-1 (CANH) | B | CAN No. 8 junction connector |
| P66-12 (CANL) | W | |
| P66-2 (CANH) | B | Power back door ECU (Back motor unit) |
| P66-13 (CANL) | W | |
| P66-3 (CANH) | B | CAN No. 6 junction connector |
| P66-14 (CANL) | W |
CAN NO. 8 JUNCTION CONNECTOR
Check the CAN No. 8 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 8 Junction Connector) |
*2 | to Front Power Seat Switch RH |
| *3 | to Tilt and Telescopic ECU (Multiplex Tilt and Telescopic ECU) |
*4 | to CAN No. 7 Junction Connector (w/ Power Back Door System) |
| *4 | to CAN No. 6 Junction Connector (w/o Power Back Door System) |
*5 | to Outer Mirror Control ECU RH |
Check the connection diagram of the components which are connected to the CAN No. 8 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F103-2 (CANH) | G | Front power seat switch RH |
| F103-13 (CANL) | W | |
| F103-3 (CANH) | BE | Tilt and telescopic ECU (Multiplex tilt and telescopic ECU) |
| F103-14 (CANL) | W | |
| F103-4 (CANH) | B | CAN No. 7 junction connector (w/ Power back door system) |
| F103-15 (CANL) | W | |
| F103-4 (CANH) | B | CAN No. 6 junction connector (w/o Power back door system) |
| F103-15 (CANL) | W | |
| F103-5 (CANH) | LG | Outer mirror control ECU RH |
| F103-16 (CANL) | W |
CAN NO. 9 JUNCTION CONNECTOR
Check the CAN No. 9 junction connector.
| *1 | Front view of wire harness connector (to CAN No. 9 Junction Connector) |
*2 | to Air Conditioning Amplifier |
| *3 | to Power Management Control ECU | *4 | to ECM |
| *5 | to Skid Control ECU | - | - |
Check the connection diagram of the components which are connected to the CAN No. 9 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| F72-1 (CANH) | B | Air conditioning amplifier |
| F72-12 (CANL) | W | |
| F72-2 (CANH) | V | Power management control ECU |
| F72-13 (CANL) | W | |
| F72-3 (CANH) | G | ECM |
| F72-14 (CANL) | W | |
| F72-4 (CANH) | P | Skid control ECU |
| F72-15 (CANL) | W |
CAN NO. 10 JUNCTION CONNECTOR
Tech Tips
- The connectors connected to the CAN junction connectors can be distinguished according to the color of the communication bus wires.
- Reconnecting the connectors to non-specified positions on the CAN junction connectors does not affect system operation. However, it is preferred to reconnect the connectors to their original positions to avoid negative effects on the wiring such as tension on the wiring harnesses, and to make future maintenance easier.
Check the CAN No. 10 junction connectors.
| *1 | Component without harness connected (CAN No. 10 Junction Connector) |
*2 | CAN No. 10 Junction Connector B Side |
| *3 | CAN No. 10 Junction Connector A Side | *4 | Ground Terminal |
| *5 | Front view of wire harness connector (to CAN No. 10 Junction Connector) |
- | - |
Check the connection diagram of the components which are connected to the CAN No. 10 junction connector.
| Terminal No. (Symbol) | Wiring Color | Connected to |
|---|---|---|
| P60-1 | W-B | Ground |
| P59-1 (CANH) | B | Skid control ECU |
| P59-2 (CANL) | W | |
| P58-1 (CANH) | B | Rear active stabilizer control ECU |
| P58-2 (CANL) | W | |
| P57-1 (CANH) | L | Front active stabilizer control ECU |
| P57-2 (CANL) | Y |
DLC3
Measure the resistance according to the value(s) in the table below.
| *1 | DLC3 |
ECM
| *1 | Front view of wire harness connector (to ECM) |
Disconnect the connector of the ECM.
Measure the resistance according to the value(s) in the table below.
MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Disconnect the connectors of the main body ECU.
| *1 | Front view of wire harness connector (to Main Body ECU) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.
COMBINATION METER
Disconnect the connector of the combination meter.
| *1 | Front view of wire harness connector (to Combination Meter) |
Measure the resistance according to the value(s) in the table below.
POWER STEERING ECU
Disconnect the connectors of the power steering ECU.
| *1 | Front view of wire harness connector (to Power Steering ECU) |
Measure the resistance according to the value(s) in the table below.
AIR CONDITIONING AMPLIFIER
Disconnect the connector of the air conditioning amplifier.
| *1 | Front view of wire harness connector (to Air Conditioning Amplifier) |
Measure the resistance according to the value(s) in the table below.
CENTER AIRBAG SENSOR ASSEMBLY
Disconnect the connector of the center airbag sensor assembly.
| *1 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.
SKID CONTROL ECU
| *1 | Front view of wire harness connector (to Skid Control ECU) |
Disconnect the connector of the skid control ECU.
Measure the resistance according to the value(s) in the table below.
STEERING ANGLE SENSOR
| *1 | Front view of wire harness connector (to Steering Angle Sensor) |
Disconnect the connector of the steering angle sensor.
Measure the resistance according to the value(s) in the table below.
YAW RATE SENSOR
| *1 | Front view of wire harness connector (to Yaw Rate Sensor) |
Disconnect the connector of the yaw rate sensor.
Measure the resistance according to the value(s) in the table below.
CERTIFICATION ECU (SMART KEY ECU)
Disconnect the connector of the certification ECU.
| *1 | Front view of wire harness connector (to Certification ECU) |
Measure the resistance according to the value(s) in the table below.
NAVIGATION ECU (DISPLAY AND NAVIGATION MODULE DISPLAY)
| *1 | Front view of wire harness connector (to Display and Navigation Module Display) |
Disconnect the connector of the navigation ECU.
Measure the resistance according to the value(s) in the table below.
POWER MANAGEMENT CONTROL ECU
| *1 | Rear view of wire harness connector (to Power Management control ECU) |
Disconnect the connectors of the power management control ECU.
Measure the resistance according to the value(s) in the table below.
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AFS ECU (HEADLIGHT SWIVEL ECU)
Disconnect the connector of the AFS ECU.
| *1 | Front view of wire harness connector (to AFS ECU) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.
SUSPENSION CONTROL ECU
| *1 | Rear view of wire harness connector (to Suspension Control ECU) |
Disconnect the connector of the suspension control ECU.
Measure the resistance according to the value(s) in the table below.
SEAT BELT CONTROL ECU
| *1 | Front view of wire harness connector (to Seat Belt Control ECU) |
Disconnect the connectors of the seat belt control ECU.
Measure the resistance according to the value(s) in the table below.
DRIVING SUPPORT ECU
| *1 | Rear view of wire harness connector (to Driving Support ECU) |
Disconnect the connector of the driving support ECU.
Measure the resistance according to the value(s) in the table below.
PARKING ASSIST ECU
| *1 | Front view of wire harness connector (to Parking Assist ECU) |
Disconnect the connector of the parking assist ECU.
Measure the resistance according to the value(s) in the table below.
CLEARANCE WARNING ECU
Disconnect the connector of the clearance warning ECU.
| *1 | Front view of wire harness connector (to Clearance Warning ECU) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.
TILT AND TELESCOPIC ECU (MULTIPLEX TILT AND TELESCOPIC ECU)
| *1 | Rear view of wire harness connector (to Multiplex Tilt and Telescopic ECU) |
Disconnect the connector of the multiplex tilt and telescopic ECU.
Measure the resistance according to the value(s) in the table below.
OUTER MIRROR CONTROL ECU RH
| *1 | Front view of wire harness connector (to Outer Mirror Control ECU RH) |
Disconnect the connector of the outer mirror control ECU RH.
Measure the resistance according to the value(s) in the table below.
OUTER MIRROR CONTROL ECU LH
| *1 | Front view of wire harness connector (to Outer Mirror Control ECU LH) |
Disconnect the connector of the outer mirror control ECU LH.
Measure the resistance according to the value(s) in the table below.
FRONT POWER SEAT SWITCH RH
Disconnect the connectors of the front power seat switch RH.
| *1 | Front view of wire harness connector (to Front Power Seat Switch RH) |
Measure the resistance according to the value(s) in the table below.
FRONT POWER SEAT SWITCH LH
Disconnect the connectors of the front power seat switch LH.
| *1 | Front view of wire harness connector (to Front Power Seat Switch LH) |
Measure the resistance according to the value(s) in the table below.
POWER BACK DOOR ECU (BACK DOOR MOTOR UNIT)
Disconnect the connector of the power back door ECU (back door motor unit).
| *1 | Front view of wire harness connector (to Power Back Door ECU) |
Measure the resistance according to the value(s) in the table below.
FRONT ACTIVE STABILIZER CONTROL ECU
Disconnect the connector of the front active stabilizer control ECU.
| *1 | Front view of wire harness connector (to Front Active Stabilizer Control ECU) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.
REAR ACTIVE STABILIZER CONTROL ECU
Disconnect the connector of the rear active stabilizer control ECU.
| *1 | Front view of wire harness connector (to Rear Active Stabilizer Control ECU) |
*2 | DLC3 |
Measure the resistance according to the value(s) in the table below.