57 - 63 Ω: Wiring Diagram

CAN communication system. See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: CAN Communication System - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

NOTE: When the measured resistance value is 57 - 63 Ω, main wiring harness or related lines may be shorted to ground, or shorted to power supply line, or related line may be open.

Step	Check	Yes	No
1 CHECK BETWEEN MAIN WIRING HARNESSES. Using the tester, measure the resistance between terminals. Connector & terminal (B280) No. 11 - Chassis ground: (B280) No. 21 - Chassis ground:	Is the resistance 10 Ω or less?	Go to step 2 .	Go to step 3 .
2 CHECK CONTROL MODULE. With the tester connected, disconnect control module. NOTE: Disconnect the body integrated unit at the end. Connector & terminal (B280) No. 11 - Chassis ground: (B280) No. 21 - Chassis ground:	Did the resistance change to 10 Ω or more?	Replace the control module whose resistance has changed.	Repair or replace the short circuit of the main wiring harness and related lines between body integrated unit and keyless access CM.
3 CHECK BETWEEN MAIN WIRING HARNESSES. Turn the ignition switch to ON. Using the tester, measure the voltage between terminals. Connector & terminal (B280) No. 11 (+) - Chassis ground (-): (B280) No. 21 (+) - Chassis ground (-):	Is the voltage 5 V or less?	CAN communication circuit is normal.	Go to step 4 .
4 CHECK CONTROL MODULE. With the tester connected, disconnect control module. (Disconnect the body integrated unit at the end.) Connector & terminal (B280) No. 11 (+) - Chassis ground (-): (B280) No. 21 (+) - Chassis ground (-):	Did the voltage change to 5 V or less?	Replace the control module whose voltage has changed.	Repair or replace the short circuit of the main wiring harness and related lines between body integrated unit and keyless access CM.