P1284 – Accelerator Pedal Position Sensor Power Supply (Nissan)

Description

The ECM detected a malfunction in the accelerator pedal sensor power supply.

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Symptoms

  • Limp mode
  • No throttle response

Causes

  • Open circuit
  • Shorted wiring
  • Sensor fault

Diagnosis

  • Check wiring continuity
  • Inspect connectors
  • Test sensor

Repair

  • Repair wiring
  • Replace sensor