Part 1

NETWORKING: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

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

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTICE:
Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the engine switch, any switches or doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

2. JUNCTION CONNECTOR

(a) NO. 1 JUNCTION CONNECTOR





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(b) NO. 2 JUNCTION CONNECTOR





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* *: w/ Navigation System

(c) NO. 3 JUNCTION CONNECTOR





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(d) NO. 4 JUNCTION CONNECTOR





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(e) NO. 5 JUNCTION CONNECTOR





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* *: w/ Pre-Collision System

(f) NO. 6 JUNCTION CONNECTOR





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* *: w/ Intuitive Parking Assist System

(g) NO. 7 JUNCTION CONNECTOR





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(h) NO. 8 JUNCTION CONNECTOR





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(i) NO. 9 JUNCTION CONNECTOR





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* *: w/ Rain Sensor

(j) NO. 10 JUNCTION CONNECTOR





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(k) NO. 1 CAN JUNCTION CONNECTOR









(l) NO. 2 CAN JUNCTION CONNECTOR









* *: w/ Tire Pressure Warning System

3. TERMINALS OF CONNECTORS FOR JUNCTION CONNECTOR (CAN JUNCTION CONNECTOR)









4. CHECK DLC3

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

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









5. CHECK MASTER CYLINDER SOLENOID (SKID CONTROL ECU)





(a) Disconnect the A24 ECU connector.

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





6. CHECK AIR CONDITIONING AMPLIFIER





(a) Disconnect the E35 and E36 amplifier connectors.

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





7. CHECK ECM





(a) Disconnect the A38 and C53 ECM connectors.

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





8. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)





(a) Disconnect the E3 ECU connector.

(b) Disconnect the 2A and 2D junction connectors.

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





* *1: For V bus

* *2: For MS bus

9. CHECK COMBINATION METER





(a) Disconnect the E7 meter connector.

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





* *1: For V bus

* *2: For MS bus

10. CHECK CENTER AIRBAG SENSOR





(a) Disconnect the E47 sensor connector.

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