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

30. CONNECT CONNECTOR

(a) Reconnect the L29 and L30 No. 2 CAN junction connector connectors.

NEXT -- Continue to next step.

31. CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 JUNCTION CONNECTOR - CERTIFICATION ECU)

(a) Disconnect the E76 No. 8 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.

32. CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 JUNCTION CONNECTOR - POSITION CONTROL AND SWITCH)

(a) 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.

33. CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU)

(a) 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.

34. CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU)

(a) 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.

35. CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 JUNCTION CONNECTOR - MAIN BODY ECU)

(a) 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. 8 JUNCTION CONNECTOR

36. CONNECT CONNECTOR

(a) Reconnect the E70 No. 10 junction connector connector.

NEXT -- Continue to next step.

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

(a) Disconnect the E7 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 (MPX+, MPX-)

OK -- REPLACE COMBINATION METER ASSEMBLY Removal

38. CONNECT CONNECTOR

(a) Reconnect the E73 No. 9 junction connector connector.

NEXT -- Continue to next step.

39. CHECK FOR SHORT IN CAN BUS WIRES (WINDSHIELD WIPER ECU)

(a) Disconnect the E85 windshield wiper 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 WINDSHIELD WIPER ECU (CANH, CANL)

OK -- REPLACE WINDSHIELD WIPER ECU

40. CONNECT CONNECTOR

(a) Reconnect the L31 No. 2 CAN junction connector connector.

NEXT -- Continue to next step.

41. CHECK FOR SHORT IN CAN BUS WIRES (TIRE PRESSURE WARNING ECU)

(a) Disconnect the L10 tire pressure warning 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 TIRE PRESSURE WARNING ECU (CANP, CANN)

OK -- REPLACE TIRE PRESSURE WARNING ECU

42. CONNECT CONNECTOR

(a) Reconnect the E76 No. 8 junction connector connector.

NEXT -- Continue to next step.

43. CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU (SMART KEY ECU))

(a) Disconnect the E29 certification ECU (smart key ECU assembly) 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 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (CANH, CANL)

OK -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal

44. CONNECT CONNECTOR

(a) Reconnect the E76 No. 8 junction connector connector.

NEXT -- Continue to next step.

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

(a) Disconnect the c15 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 (MPX1, MPX2)

OK -- REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY Removal

46. CONNECT CONNECTOR

(a) Reconnect the E76 No. 8 junction connector connector.

NEXT -- Continue to next step.

47. CHECK FOR SHORT IN CAN BUS WIRES (MULTIPLEX TILT AND TELESCOPIC ECU)

(a) Disconnect the E27 multiplex tilt and telescopic 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 POWER TILT AND TELESCOPIC ECU (CANP, CANN)

OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal

48. CONNECT CONNECTOR

(a) Reconnect the E76 No. 8 junction connector connector.

NEXT -- Continue to next step.

49. CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU)

(a) Disconnect the I18 outer mirror control 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 OUTER MIRROR CONTROL ECU (CANH, CANL)

OK -- REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY Removal

50. CONNECT CONNECTOR

(a) Reconnect the E76 No. 8 junction connector connector.

NEXT -- Continue to next step.

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

(a) Disconnect the E3 main body ECU (cowl side junction block 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 MAIN WIRE CONNECTED TO MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) (CANP, CANN)

OK -- REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

52. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

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





Text in Illustration





(b) Disconnect the 2A, 2D and E3 main body ECU (cowl side junction block LH) connectors.

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

Standard Resistance:





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

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)