CAN Communication System

NETWORKING: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

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.
NOTE: 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









(b) NO. 2 JUNCTION CONNECTOR









HINT: *: w/ Navigation System

(c) NO. 3 JUNCTION CONNECTOR









(d) NO. 4 JUNCTION CONNECTOR









(e) NO. 5 JUNCTION CONNECTOR









HINT: *: w/ Pre-Collision System

(f) NO. 6 JUNCTION CONNECTOR









HINT: *: w/ Intuitive Parking Assist System

(g) NO. 7 JUNCTION CONNECTOR









(h) NO. 8 JUNCTION CONNECTOR









(i) NO. 9 JUNCTION CONNECTOR









(j) NO. 10 JUNCTION CONNECTOR









(k) NO. 1 CAN JUNCTION CONNECTOR









(l) NO. 2 CAN JUNCTION CONNECTOR









HINT: *: 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.





HINT: *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.





HINT: *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.






11. CHECK MULTI-DISPLAY
HINT: For vehicles with the navigation system only.





(a) Disconnect the F28 multi-display connector.
(b) Measure the resistance according to the value(s) in the table below.






12. CHECK STEERING ANGLE SENSOR





(a) Disconnect the E11 sensor connector.
(b) Measure the resistance according to the value(s) in the table below.






13. CHECK YAW RATE SENSOR





(a) Disconnect the E50 sensor connector.
(b) Measure the resistance according to the value(s) in the table below.






14. CHECK SEAT BELT CONTROL ECU
HINT: For vehicles with the pre-collision system only.





(a) Disconnect the E41 and E42 ECU connectors.
(b) Measure the resistance according to the value(s) in the table below.






15. CHECK CLEARANCE WARNING ECU
HINT: For vehicles with the intuitive parking assist system only.





(a) Disconnect the F12 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.






16. CHECK OUTER MIRROR CONTROL ECU





(a) Disconnect the I17 and I18 ECU connectors.
(b) Measure the resistance according to the value(s) in the table below.






17. CHECK MULTIPLEX TILT AND TELESCOPIC ECU





(a) Disconnect the E27 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.






18. CHECK CERTIFICATION ECU (SMART KEY ECU)





(a) Disconnect the E29 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.






19. CHECK POSITION CONTROL ECU AND SWITCH





(a) Disconnect the c14 and c15 ECU connectors.
(b) Measure the resistance according to the value(s) in the table below.






20. CHECK TIRE PRESSURE WARNING ECU
HINT: For vehicles with the tire pressure warning system only.





(a) Disconnect the L10 connector.
(b) Measure the resistance according to the value(s) in the table below.






21. CHECK 4WD CONTROL ECU





(a) Disconnect the A27 and A28 ECU connectors.
(b) Measure the resistance according to the value(s) in the table below.






22. CHECK NETWORK GATEWAY ECU





(a) Disconnect the E31 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.





HINT: *1: For V bus
*2: For movement control bus