Part 2

NETWORKING: CAN COMMUNICATION SYSTEM: U1002 (CAN MS BUS): Lost Communication with Gateway Module (Main body ECU)
U1002 (CAN MS BUS) - Lost Communication with Gateway Module (Main body ECU) - Continued

16. CONNECT CONNECTOR

(a) Reconnect the D121 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

17. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR - BACK DOOR ECU)

(a) Disconnect the D122 No. 2 CAN junction connector connector.

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

18. CONNECT CONNECTOR

(a) Reconnect the D122 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

19. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR - SLIDE DOOR MOTOR UNIT LH)

(a) Disconnect the D123 No. 2 CAN junction connector connector.

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

20. CONNECT CONNECTOR

(a) Reconnect the D123 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

21. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU ASSEMBLY LH)

(a) Disconnect the D124 No. 2 CAN junction connector connector.

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

22. CONNECT CONNECTOR

(a) Reconnect the D124 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

23. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 CAN JUNCTION CONNECTOR - MAIN BODY ECU)

(a) Disconnect the D120 No. 2 CAN junction connector connector.

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR

OK -- REPAIR OR REPLACE NO. 2 CAN JUNCTION CONNECTOR

24. CONNECT CONNECTOR

(a) Reconnect the D117 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

25. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER)

(a) Disconnect the D18 combination meter connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER (CAN-H, CAN-L)

OK -- REPLACE COMBINATION METER Removal

26. CONNECT CONNECTOR

(a) Reconnect the D118 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

27. CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU ASSEMBLY RH)

(a) Disconnect the G3 outer mirror control ECU assembly RH connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR CONTROL ECU ASSEMBLY RH (CAN-H, CAN-L)

OK -- REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Removal

28. CONNECT CONNECTOR

(a) Reconnect the D119 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

29. CHECK FOR SHORT IN CAN BUS WIRES (SLIDE DOOR MOTOR UNIT RH)

(a) Disconnect the I8 slide door motor unit RH connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SLIDE DOOR MOTOR UNIT RH (CAN-H, CAN-L)

OK -- REPLACE SLIDE DOOR MOTOR UNIT RH Removal

30. CONNECT CONNECTOR

(a) Reconnect the D121 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

31. CHECK FOR SHORT IN CAN BUS WIRES (POSITION CONTROL ECU AND SWITCH)

(a) Disconnect the Y9 position control ECU and switch connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POSITION CONTROL ECU AND SWITCH (CAN-H, CAN-L)

OK -- REPLACE POSITION CONTROL ECU AND SWITCH Disassembly

32. CONNECT CONNECTOR

(a) Reconnect the D122 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

33. CHECK FOR SHORT IN CAN BUS WIRES (BACK DOOR ECU)

(a) Disconnect the K14 back door ECU connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BACK DOOR ECU (CAN-H, CAN-L)

OK -- REPLACE BACK DOOR ECU Removal

34. CONNECT CONNECTOR

(a) Reconnect the D123 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

35. CHECK FOR SHORT IN CAN BUS WIRES (SLIDE DOOR MOTOR UNIT LH)

(a) Disconnect the J9 slide door motor unit LH connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SLIDE DOOR MOTOR UNIT LH (CAN-H, CAN-L)

OK -- REPLACE SLIDE DOOR MOTOR UNIT LH Removal

36. CONNECT CONNECTOR

(a) Reconnect the D124 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

37. CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU ASSEMBLY LH)

(a) Disconnect the H2 outer mirror control ECU assembly LH connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR CONTROL ECU ASSEMBLY LH (CAN-H, CAN-L)

OK -- REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Removal

38. CONNECT CONNECTOR

(a) Reconnect the D120 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

39. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)

(a) Disconnect the D14 main body ECU connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (CAN-H, CAN-L)

OK -- REPLACE MAIN BODY ECU Removal

40. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK - BATTERY AND BODY GROUND)

(a) connect the cable to the negative (-) battery terminal.

NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

(b) Disconnect the 2D and 2K instrument panel junction block connectors.





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

Standard Resistance:





Text in Illustration





(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

41. REPLACE MAIN BODY ECU

(a) Replace the main body ECU with a new or normal one Removal.

OK:

The vehicle is returned to its normal condition and operates normally.

NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK

OK -- END