Error code

OBD2 P0322

OBD2P0322
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Ignition/Distributor Engine Speed Input Circuit No Signal.

Severity

highThe vehicle may be drivable but with significant performance issues and potential safety risks.

Summary

P0322 indicates that there is no signal from the crankshaft or camshaft position sensor (CKP/RPM sensor) to the Engine Control Module (ECM), which affects engine speed and timing.

Symptoms

  • Check engine light on
  • Engine hard to start
  • Engine will not start
  • Engine stalls
  • Increased fuel consumption
  • Decreased engine performance

Common Causes

  • Defective crankshaft position sensor
  • Faulty wiring or connection to the crankshaft position sensor
  • Defective camshaft position sensor
  • Faulty wiring or connection to the camshaft position sensor
  • Defective ignition/distributor speed sensor
  • Faulty wiring or connection to the ignition/distributor speed sensor

Diagnosis

  1. Check if components are receiving correct voltage.
  2. Inspect wiring for faulty connections, corrosion or damage.
  3. Visually inspect crankshaft position sensor for defects.
  4. Inspect camshaft position sensor for defects.
  5. Perform continuity tests on sensors using an ohm meter.

Fixes

  • Replace defective sensor (crankshaft/camshaft/ignition/distributor speed).

FAQ

What should I do if the engine won't start?

Check for issues with the crankshaft or camshaft position sensors and their wiring. If necessary, consult a professional mechanic.

How can I prevent this issue from recurring?

Regularly inspect sensor connections and wiring to ensure they are clean and secure.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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