Subaru Automotive Error Code P1518: How to Fix It

Q: What causes Subaru P1518 error code?

P1518 is typically caused by a faulty ignition switch, loose or corroded wiring connections, damaged wiring in the starter circuit, or occasionally a failing engine control module (ECM).

Q: Can I drive my Subaru with P1518 code?

While you may be able to drive short distances, P1518 can cause starting problems and should be addressed promptly. The vehicle may fail to start intermittently or develop more serious electrical issues.

Q: How much does it cost to fix P1518?

Repair costs vary from $50-200 for wiring repairs or connector replacement, up to $150-400 for ignition switch replacement, or $800-1500 if ECM replacement is needed.

Q: Will P1518 cause my Subaru to fail inspection?

Yes, any stored diagnostic trouble code like P1518 will typically cause your vehicle to fail emissions inspection until the issue is resolved and codes are cleared.

Abstract

The Subaru P1518 error code indicates a low input signal in the starter switch circuit, which can prevent your vehicle from starting properly. This issue typically involves the ignition switch, wiring connections, or the engine control module detecting an improper voltage signal when you turn the key.