CAN Communication System

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

NOTICE:
* Turn the ignition switch off before measuring the resistances of CAN bus main wires and CAN bus branch wires.
* After the ignition switch is turned off, check that the key reminder warning system and light remainder warning system are not operating.
* Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors. If any doors need to be opened in order to check the connectors, open the doors and leave them open.

HINT
Operating the ignition 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.

NOTICE:
This section describes the standard CAN values for all CAN related components.

1. JUNCTION CONNECTOR FOR CAN BUS

(a) CAN junction connector CTR









(b) CAN junction connector RH









(c) The connection diagram of the components which are connected to the CAN junction connector.





2. JUNCTION CONNECTOR FOR CAN MS BUS (w/ POWER BACK DOOR SYSTEM)

(a) CAN junction connector RR









HINT
* *1: w/ Power back door system
* *2: w/ Smart key system
* *3: w/ Smart key system (w/ Power back door system)
* *4: w/o Smart key system (w/ Power back door system)

(b) The connection diagram of the components which are connected to the CAN junction connector





3. DLC3

(a) Measure the resistance according to the value(s) in the table below.





Standard resistance:





4. SKID CONTROL ECU WITH ACTUATOR

(a) Disconnect the connector from the skid control ECU.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





5. STEERING ANGLE SENSOR

(a) Disconnect the connector from the steering angle sensor.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





6. YAW RATE SENSOR

(a) Disconnect the connector from the yaw rate sensor.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





7. CENTER AIRBAG SENSOR ASSEMBLY

(a) Disconnect the connector from the center airbag sensor assembly.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





8. ECM (2GR-FE)





(a) Disconnect the connector from the ECM.

(b) Measure the resistance according to the value(s) in the table below.





Standard resistance:





9. ECM (1AR-FE)





(a) Disconnect the connector from the ECM.

(b) Measure the resistance according to the value(s) in the table below.





Standard resistance:





10. AIR CONDITIONING AMPLIFIER





(a) Disconnect the amplifier connector from air conditioning amplifier.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





11. COMBINATION METER

(a) Disconnect the connector from the combination meter.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





12. CERTIFICATION ECU (w/ Smart Key System)

(a) Disconnect the connector from the certification ECU.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





13. MAIN BODY ECU

(a) Disconnect the connector from the main body ECU.

(b) Measure the resistance according to the value(s) in the table below.





Standard resistance:





14. POWER STEERING ECU

(a) Disconnect the power steering ECU connectors.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





15. BACK DOOR ECU (w/ Power Back Door System)

(a) Disconnect the back door ECU connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





16. ACCESSORY GATEWAY

(a) Measure the resistance according to the value(s) in the table below.





Standard resistance: