OBD-II Code
P0322
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$80–$480
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0322 means the ECM is seeing no signal at all from the ignition or distributor engine speed input — the crank position sensor circuit has gone dark.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0322 means the ECM is seeing no signal at all from the ignition or distributor engine speed input — the crank position sensor circuit has gone dark.
P0322 means the ECM is seeing no signal at all from the ignition or distributor engine speed input — the crank position sensor circuit has gone dark. This pairs almost universally with a crank-no-start condition because without crank position the ECM cannot fire injectors or coils in synchronization.
Diagnostic ladder is short and tactical
- at the CKP connector with key on, verify 12V reference (or 5V for Hall-effect sensors) on the power pin and clean ground on the ground pin.
- If both are present, swap the sensor — most magnetic-pickup CKPs are $40-80, Hall-effect are $60-120.
- If power or ground is missing at the connector, work backward through the harness with a wiring diagram to find the open or short.
- Common failure points: rodent damage on the harness near the sensor, connector pin push-back from a previous repair, and chafed wires where the harness crosses sharp engine bracketry.
- Caveat: on cars with anti-theft immobilizers, a failing key transponder or PATS module can present as P0322 plus crank-no-start because the immobilizer suppresses injector signal and the ECM logs a phantom sensor fault; scan for theft-system codes before condemning the CKP sensor.
Vehicle-specific patternsSubaru EJ25 (Forester, Outback, Impreza, 2005-2014) — CKP connector corrosion at the front of the engine breaks signal entirely.
Subaru EJ25 (Forester, Outback, Impreza, 2005-2014) — CKP connector corrosion at the front of the engine breaks signal entirely. Chrysler 2.7L/3.5L V6 (Sebring, 300M, Pacifica, 1998-2008) — heat-soak total failure of the CKP sensor on the bellhousing; classic crank-no-start when hot, restarts after 30 minutes cool down. Ford 4.6L/5.4L modular V8 (Crown Vic, F-150, Expedition, 1996-2010) — wiring harness chafe at the bellhousing-to-block transition. GM 3.6L High Feature V6 (CTS, Acadia, SRX, 2007-2012) — CKP sensor failure paired with timing chain stretch.
Estimated repair$80 to $480.
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