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P0842moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch A Circuit Low

on 2013 Nissan Altima 3.5L V6 VQ35DE · FWD

What this code means

The PCM detected a voltage lower than expected in the transmission pressure sensor A circuit. This may indicate a short to ground or a failed sensor.

Symptoms

  • Poor shift quality
  • Transmission slipping
  • Warning light illuminated

Common causes

  • Short to ground in wiring
  • Faulty pressure sensor
  • Corroded connector
  • Low line pressure

Diagnostic steps

  1. Scan and record fault codes
  2. Inspect wiring for shorts to ground
  3. Check connector for corrosion
  4. Measure sensor signal voltage

Other Powertrain codes on this vehicle

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