Battery Short Inspection

Wiring diagram:

CAN communication system Ref. to WIRING DIAGRAM , CAN Communication System.

Fig 1: Can Communication System Wiring Diagram - Battery Short Inspection (Without BSD/RCTA)

Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Can Communication System Wiring Diagram - Battery Short Inspection (With BSD/RCTA)

Courtesy of SUBARU OF AMERICA, INC.

NOTE: Main wiring harness or related lines may be shorted to battery circuit, or shorted to battery circuit in one of the control modules.

Step	Check	Yes	No
1 CHECK BETWEEN RELATED LINES AND MAIN WIRING HARNESS . Turn the ignition switch to ON. Using the tester, measure the voltage between terminals. Connector & terminal (B40) No. 6 - Chassis ground: (B40) No. 14 - Chassis ground:	Is the voltage 5 V or less?	Currently, it is normal.	Go to step 2 .
2 CHECK CONTROL MODULE . With the tester connected, disconnect control module. NOTE: Disconnect the body integrated unit at the end. Connector & terminal (B40) No. 6 - Chassis ground: (B40) No. 14 - Chassis ground:	Did the voltage change to 5 V or less?	Replace the control module whose voltage has changed. When the value changed at disconnecting the body integrated unit, Go to step 3 .	Repair or replace the short circuit of the harness between body integrated unit and VDC Control Module.
3 CHECK BETWEEN MAIN WIRING HARNESSES . Using the tester, measure the voltage between terminals. Connector & terminal (i84) No. 27 - Chassis ground: (i84) No. 35 - Chassis ground:	Is the voltage 5 V or less?	Replace the body integrated unit.	Ref. to Body Integrated Unit . Repair or replace the short circuit of the harness between ECM and body integrated unit.