P1611 – NATS Malfunction (Nissan)

Description

The ECM detected a malfunction in the NATS immobilizer system.

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Symptoms

  • No start
  • Security light

Causes

  • Antenna fault
  • Key issue
  • Wiring problem

Diagnosis

  • Check antenna coil
  • Inspect wiring
  • Scan NATS data

Repair

  • Replace antenna
  • Repair wiring