56 - 64 Ω (A/C Cm): Wiring Diagram

CAN communication system. See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: CAN Communication System - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK BETWEEN RELATED LINES AND MAIN WIRING HARNESS. Disconnect the A/C CM connector. Using the tester, measure the resistance between terminals. Connector & terminal (i80) No. 4 - No. 5:	Is the resistance 400 Ω or more?	Related lines between A/C CM and main wiring harness is open, or main wiring harness is open at two places or more.	Go to step 2 .
2 CHECK RELATED LINES. Using the tester, measure the resistance between terminals. Connector & terminal (i80) No. 4 - (B40) No. 6: (i80) No. 5 - (B40) No. 14:	Is the resistance 10 Ω or more?	Repair or replace the open circuit of A/C CM related lines.	Check DTC of A/C CM. Refer to OPERATION .