Part 2

NETWORKING: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

NOTICE:
* Turn the engine switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires.
* Turn the engine switch off before inspecting CAN bus wires for a ground short.
* After the engine switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.
* Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other switches or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.
* This section describes the standard values for all CAN related components.

HINT
* Operating the engine 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.
* Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

17. YAW RATE SENSOR

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





Text in Illustration





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

Standard Resistance:





18. CERTIFICATION ECU (SMART KEY ECU)

(a) Disconnect the connector of the certification ECU.





Text in Illustration





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

Standard Resistance:





19. NAVIGATION ECU (DISPLAY AND NAVIGATION MODULE DISPLAY) (for DVD)





(a) Disconnect the connector of the navigation ECU.





Text in Illustration





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

Standard Resistance:





20. NAVIGATION ECU (DISPLAY AND NAVIGATION MODULE DISPLAY) (for HDD)





(a) Disconnect the connector of the navigation ECU.





Text in Illustration





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

Standard Resistance:





21. POWER MANAGEMENT CONTROL ECU

(a) Disconnect the connector of the power management control ECU.





Text in Illustration





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

Standard Resistance:

for CAN No. 1 Bus Branch Wire
for CAN No. 2 Bus Main Wire
for Power Management Bus Main Wire














22. AFS ECU (HEADLIGHT SWIVEL ECU)

(a) Disconnect the connector of the AFS ECU.





Text in Illustration





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

Standard Resistance:





23. 4WD CONTROL ECU

(a) Disconnect the connector of the 4WD control ECU.





Text in Illustration





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

Standard Resistance:





24. SEAT BELT CONTROL ECU





(a) Disconnect the connectors of the seat belt control ECU.





Text in Illustration





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

Standard Resistance:





25. DRIVING SUPPORT ECU





(a) Disconnect the connector of the driving support ECU.

Text in Illustration





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

Standard Resistance:





26. PARKING ASSIST ECU

(a) Disconnect the connector of the parking assist ECU.





Text in Illustration





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

Standard Resistance:





27. CLEARANCE WARNING ECU

(a) Disconnect the connector of the clearance warning ECU.





Text in Illustration





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

Standard Resistance:





28. TILT AND TELESCOPIC ECU (MULTIPLEX TILT AND TELESCOPIC ECU)





(a) Disconnect the connector of the multiplex tilt and telescopic ECU.

Text in Illustration





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

Standard Resistance:





29. OUTER MIRROR CONTROL ECU LH

(a) Disconnect the connector of the outer mirror control ECU LH.





Text in Illustration





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

Standard Resistance:





30. OUTER MIRROR CONTROL ECU RH

(a) Disconnect the connector of the outer mirror control ECU RH.





Text in Illustration





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

Standard Resistance:





31. POSITION CONTROL ECU LH

(a) Disconnect the connectors of the position control ECU LH.





Text in Illustration





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

Standard Resistance:





32. POWER BACK DOOR ECU (BACK DOOR MOTOR UNIT)

(a) Disconnect the connector of the power back door ECU (back door motor unit).





Text in Illustration





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

Standard Resistance: