62 Ω Or More

MAIN-CAN
Wiring diagram:

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

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

NOTE: When the CAN communication circuit is measured, combined resistance of the end resistance (120 Ω) in ECM and the end resistance (120 Ω) in body integrated unit can be measured. The combined resistance is more than 52 Ω and less than 62 Ω with the stabilizing circuit included. When the measured resistance value is 62 Ω or more, either one of the end resistances, or stabilizing circuit, or main wiring harness may have malfunction such as open circuit.

CHECK CONTROL MODULE .
1. Disconnect the connectors of ECM and body integrated unit.
2. Using a tester, measure the resistance between control module terminals.
  Connector & terminal
  
  (B134) No. 45 - (B134) No. 58:
  
  (i171) No. 1 - (i171) No. 2:
  
  Is the resistance 114 - 126 Ω?
  
  Yes : Go to 2.
  
  No : Replace the control module whose value is out of the specification.
CHECK HARNESS .
1. Disconnect the steering angle sensor connector.
2. Using a tester, measure the resistance between steering angle sensor connector and ECM connector, and between steering angle sensor connector and body integrated unit connector.
  Connector & terminal
  
  (i74) No. 3 - (B134) No. 45:
  
  (i74) No. 2 - (B134) No. 58:
  
  (i74) No. 3 - (i171) No. 1:
  
  (i74) No. 2 - (i171) No. 2:
  
  Is the resistance less than 10 Ω?
  
  Yes : It is possible that temporary poor communication occurs.
  
  No : Repair or replace the open circuit of harness.

BODY-CAN
Wiring diagram:

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

Courtesy of SUBARU OF AMERICA, INC.

NOTE: When the CAN communication circuit is measured, combined resistance of the end resistance (120 Ω) in body integrated unit and the end resistance (120 Ω) in combination meter can be measured. The combined resistance is more than 52 Ω and less than 62 Ω with the stabilizing circuit included. When the measured resistance value is 62 Ω or more, either one of the end resistances, or stabilizing circuit, or main wiring harness may have malfunction such as open circuit.

CHECK CONTROL MODULE .
1. Disconnect the connectors of the body integrated unit and combination meter.
2. Using a tester, measure the resistance between control module terminals.
  Connector & terminal
  
  (B281) No. 17 - (B281) No. 19:
  
  (i10) No. 6 - (i10) No. 7:
  
  Is the resistance 114 - 126 Ω?
  
  Yes : Go to 2.
  
  No : Replace the control module whose value is out of the specification.
CHECK HARNESS .
Using a tester, measure the resistance between the combination meter connector and body integrated unit connector.

Connector & terminal

(B281) No. 17 - (i10) No. 6:

(B281) No. 19 - (i10) No. 7:

Is the resistance less than 10 Ω?

Yes : It is possible that temporary poor communication occurs.

No : Repair or replace the open circuit of harness.