Part 4

NETWORKING: CAN COMMUNICATION SYSTEM: U1002 (CAN No. 2 BUS): Lost Communication with Gateway Module (Network Gateway ECU)
U1002 (CAN No. 2 BUS) - Lost Communication with Gateway Module (Network Gateway ECU) - Continued

50. CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU)





(a) Disconnect the E31 Network gateway 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 NETWORK GATEWAY ECU (CA2H, CA2L)

OK -- REPLACE NETWORK GATEWAY ECU Removal

51. CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - BATTERY AND BODY GROUND)

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





(b) Disconnect the E31 network gateway ECU connector.

(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:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE NETWORK GATEWAY ECU Removal