OBD-II Generic Automotive Error Code P1610: How to Fix It

Q: What does P1610 mean on a Nissan?

P1610 on a Nissan means the NATS (Nissan Anti-Theft System) immobilizer has locked the ECM (Engine Control Module). This prevents the engine from starting as a theft-prevention measure. It is usually triggered by an unrecognized key transponder, a battery disconnection, or an ECM replacement.

Q: Can I drive my Nissan with a P1610 code?

In most cases, a P1610 code will prevent the vehicle from starting at all, so driving is not possible until the issue is resolved. If the vehicle has somehow started despite the code, it is not recommended to drive until the NATS issue is properly diagnosed and corrected, as the vehicle may stall or refuse to restart.

Q: Will a new battery cause a P1610 NATS lockout?

Yes, replacing or disconnecting the battery can sometimes trigger a P1610 code because the NATS system loses its power reference. Performing the NATS key re-initialization procedure (turning the ignition ON and OFF several times with the registered key) usually resolves this after a battery change.

Q: How much does it cost to fix a P1610 NATS immobilizer error?

If the fix is simply re-syncing an existing key or clearing the code, the cost can be minimal — just the cost of an OBD2 scan. If a new key needs to be programmed, expect to pay $75–$250 at a locksmith or $150–$400 at a Nissan dealership. If the NATS module, antenna ring, or BCM needs replacement, costs can range from $200 to $800 or more depending on parts and labor.

Q: Can a bad ignition switch cause a P1610 code?

Yes, a faulty ignition switch can interfere with the NATS antenna ring's ability to read the key transponder, which can trigger P1610. If you notice other ignition-related symptoms — such as difficulty turning the key, intermittent power loss, or accessories not working — a worn ignition switch or cylinder may be contributing to the NATS fault.

Abstract

Error code P1610 on a Nissan vehicle indicates that the NATS (Nissan Anti-Theft System) immobilizer has locked the Engine Control Module (ECM), preventing the engine from starting. This typically happens when an unrecognized or unprogrammed key is used, after a battery replacement, or following an ECM swap. The security system is doing its job — but it needs to be properly reset and synchronized with your key to allow normal operation.