Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Related Line 53 - 61 Ω (A/C Control Module): Wiring Diagram
2016 Subaru Legacy 2.5iSECTION Wiring Diagram
NOTE:
For the coupling connector, refer to "WIRING SYSTEM".
CAN communication system < Ref. to appropriate wiring diagram in SYSTEM WIRING DIAGRAM article. >
DIAGNOSTICS PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK BETWEEN RELATED LINES AND MAIN WIRING HARNESS.
|
Is the resistance 400 Ω or more? | Related lines between A/C control module 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. 2 - (B40) No. 6: (i80) No. 3 - (B40) No. 14: |
Is the resistance 10 Ω or more? | Repair or replace the open circuit of A/C control module related lines. | Check the DTC of A/C control module. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . > |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.