P1573 – Stop Lamp Switch Circuit High (Nissan)

Description

The ECM detected a high signal in the stop lamp switch circuit.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Brake lights stuck on
  • Warning light

Causes

  • Short to power
  • Switch failure
  • Wiring issue

Diagnosis

  • Check wiring for shorts
  • Inspect switch
  • Scan brake data

Repair

  • Repair wiring
  • Replace switch