P1570 – Immobilizer Communication Malfunction (Nissan)

Description

The ECM detected a communication malfunction with the immobilizer system.

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Symptoms

  • No start
  • Security light

Causes

  • Key transponder issue
  • Antenna fault
  • Wiring problem

Diagnosis

  • Check key signal
  • Inspect antenna
  • Scan security data

Repair

  • Replace key
  • Repair wiring