CAN Communication System

NETWORKING: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU
NOTICE:
- Turn the ignition switch off before measuring the resistance of the 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 reminder warning system are not in operation.
- 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.
NOTE: This section describes the standard CAN values for all CAN related components.

1. JUNCTION CONNECTOR FOR CAN NO. 1 BUS
(a) CAN No. 1 junction connector

(b) CAN No. 2 junction connector

2. JUNCTION CONNECTOR FOR CAN MS BUS
(a) CAN No. 3 junction connector

(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 (w/o VSC)

(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. SKID CONTROL ECU WITH ACTUATOR (w/ VSC)

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

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

6. 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:

7. 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:

8. CENTER AIRBAG SENSOR

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

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

9. ECM
(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 (for Automatic Air Conditioning System)
(a) Disconnect the amplifier connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

11. AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System)
(a) Disconnect the amplifier connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

12. 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:

13. CERTIFICATION ECU

(a) Disconnect the connector from the certification ECU.

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

14. MAIN BODY ECU (w/ Smart Key System or Automatic Light Control System)
(a) Disconnect the connector from the main body ECU.
(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

15. MAIN BODY ECU (w/o Smart Key System, Automatic Light Control System)
(a) Disconnect the connector from the main body ECU.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

16. 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:

17. ACCESSORY GATEWAY

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