CAN Communication System

NETWORKING: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

NOTICE:
* Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.
* 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 doors need to be opened in order to check connectors, open the doors and leave them open.

HINT
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1. JUNCTION CONNECTOR

(a) CAN No. 1 Junction Connector





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Wiring Color





(b) CAN No. 2 Junction Connector





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Wiring Color





(c) Wiring diagram for identifying CAN Junction Connectors





2. DLC3

(a) Turn the ignition switch off.

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





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Standard Resistance





3. BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

(a) Turn the ignition switch off.

(b) Disconnect the A16 brake actuator assembly (skid control ECU) connector.





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

Standard Resistance





4. ECM

(a) Turn the ignition switch off.

(b) Disconnect the A18 and B8 ECM connectors.

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

Standard Resistance





5. MAIN BODY ECU

(a) Turn the ignition switch off.

(b) Disconnect the D42 main body ECU connector.

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

Standard Resistance





6. SPIRAL CABLE SUB-ASSEMBLY (STEERING SENSOR)

(a) Turn the ignition switch off.

(b) Disconnect the D20 spiral cable sub-assembly (steering sensor) connector.

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

Standard Resistance





7. COMBINATION METER ASSEMBLY (COMBINATION METER ECU)

(a) Turn the ignition switch off.

(b) Disconnect the D1 combination meter assembly (combination meter ECU) connector.

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

Standard Resistance





8. AIR CONDITIONING AMPLIFIER ASSEMBLY

(a) Turn the ignition switch off.

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

(c) Turn the ignition switch off.

(d) Disconnect the D16 air conditioning amplifier assembly connector.

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

Standard Resistance





9. CENTER AIRBAG SENSOR ASSEMBLY

(a) Turn the ignition switch off.

(b) Disconnect the D43 center airbag sensor assembly connector.

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

Standard Resistance





10. YAW RATE SENSOR

(a) Turn the ignition switch off.

(b) Disconnect the D58 yaw rate sensor connector.

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

Standard Resistance





11. STEERING COLUMN ASSEMBLY (POWER STEERING ECU)

(a) Turn the ignition switch off.

(b) Disconnect the A15 and D51 steering column assembly (power steering ECU) connectors.

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

Standard Resistance