Subaru Error Code P1100: How to Fix It

Q: Can I drive my Subaru with P1100 error code?

If your Subaru starts and runs normally, you can drive short distances to a repair facility. However, this code indicates a starter circuit problem that could leave you stranded if it worsens, so address it promptly.

Q: What causes Subaru P1100 starter switch circuit malfunction?

Common causes include a faulty ignition switch, damaged starter relay, corroded battery connections, worn starter solenoid, or damaged wiring in the starter circuit. Age and wear are typical factors in older Subaru models.

Q: How much does it cost to fix Subaru P1100 error?

Repair costs vary from $50-100 for simple fixes like cleaning battery terminals or replacing a relay, to $200-400 for ignition switch replacement, or $300-600 for starter solenoid replacement depending on labor rates and parts costs.

Q: Will P1100 cause my Subaru to not start?

Yes, P1100 can prevent your Subaru from starting because it indicates a problem with the starter switch circuit. The engine may turn over weakly, make clicking sounds, or not respond at all when you turn the key.

Q: Is P1100 a serious error code in Subaru vehicles?

P1100 is moderately serious because it affects your ability to start the vehicle. While not immediately dangerous to drive if the car starts, it should be diagnosed and repaired soon to prevent being stranded with a non-starting vehicle.

Abstract

The Subaru P1100 error code indicates a starter switch circuit malfunction, which can prevent your vehicle from starting properly. This issue typically involves problems with the ignition switch, wiring, or related electrical components that control the starter system.