Nissan P1730 Error Code: How to Fix It

Q: Can I drive with P1730 code?

You can typically drive short distances with P1730, but the vehicle may not start in Park position and you might experience transmission shifting issues. It's best to diagnose and fix the problem promptly to avoid potential safety hazards.

Q: How much does it cost to fix P1730?

DIY repair costs range from $50-150 for a replacement inhibitor switch. Professional repair typically costs $200-400 including labor, depending on switch accessibility and local labor rates.

Q: What causes inhibitor switch failure?

Common causes include normal wear from frequent gear shifting, corrosion from moisture exposure, damaged wiring from road debris, or misalignment from transmission service or impact damage.

Q: Will P1730 cause transmission damage?

The P1730 code itself won't cause transmission damage, but ignoring it may lead to unsafe driving conditions like inability to start in Park or incorrect gear position feedback that could affect transmission operation.

Q: How do I reset P1730 code?

Use an OBD2 scanner to clear the code after fixing the underlying issue. Simply clearing the code without repair will cause it to return. The problem must be properly diagnosed and repaired first.

Abstract

The P1730 error code in your Nissan indicates a problem with the inhibitor switch P/N circuit in your automatic transmission. This switch tells the engine control module (ECM) what gear position your transmission is in and affects engine starting and reverse lights. When this circuit malfunctions, you may experience starting issues, transmission shifting problems, or incorrect gear position readings.