Related Lines, More Than 52 Ω And Less Than 62 Ω (Immobilizer)

Wiring diagram: 

CAN communication system Ref. to WIRING SYSTEM>CAN Communication System>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK BETWEEN RELATED LINES AND MAIN WIRING HARNESS  .
   1. Disconnect the immobilizer control module connector.
   2. Using a tester, measure the resistance between the immobilizer control module connector terminals.

      Connector & terminal 

      (i34) No. 10 - (i34) No. 11:

      Is the resistance 400 Ω or more?

      Yes  : A related line between immobilizer control module and main wiring harness is open, or main wiring harness is open at two places or more.

      No  : Go to  2.

2. CHECK RELATED LINES  .
   1. Disconnect the audio or navigation unit connector.
   2. Using a tester, measure the resistance between audio or navigation unit connector and immobilizer control module connector.

      Connector & terminal 

      (i34) No. 10 - (i87) No. 9:

      (i34) No. 11 - (i87) No. 10:

      Is the resistance 10 Ω or more?

      Yes  : Repair or replace the open circuit of immobilizer related lines.

      No  : The communication harness is normal. Check DTC of immobilizer system. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .