Code Definition

P0322 — Ignition/Distributor Engine Speed Input Circuit No Signal

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0322

P0322 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0322 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0322 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0322 fault code is triggered when the powertrain control module (PCM) does not receive a signal from the engine speed input circuit. This signal, typically provided by the crankshaft position sensor or distributor, is essential for calculating ignition timing and fuel injection. A missing signal can lead to a no-start condition or engine stalling.

Quick Facts