P0335 – Crankshaft Position Sensor A Circuit

Description

The ECM detects no or incorrect signal from the crankshaft position sensor.

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Symptoms

  • No start
  • Stalling
  • Rough idle
  • Misfires
  • Poor acceleration

Causes

  • Faulty crank sensor
  • Damaged wiring
  • Connector corrosion
  • ECM fault

Diagnosis

  • Monitor crank signal
  • Inspect wiring
  • Test sensor resistance
  • Check reluctor wheel

Repair

  • Replace crank sensor
  • Repair wiring
  • Fix connector
  • Replace ECM if needed

Related Problems

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