How is fault code P0322 fixed?

A typical diagnostic sequence used by mechanics, provided here for educational reference only. Diagnostic work should be performed by a qualified mechanic with the appropriate tools and training. 1. Plug in a scanner and read every stored code, not just this one. Other crank and cam sensor codes (P0335, P0340) point you straight at the circuit and tell you how many sensors are involved 2. Get under the car and eyeball the crank sensor connector and harness. You're looking for chafed insulation, green corrosion on the pins, melted plastic near the exhaust, or a plug that isn't fully seated 3. Check battery and charging voltage. You want around 12.6V resting and above 13.8V with the engine running, because a tired battery can starve the sensor of a clean signal 4. Put a multimeter across the sensor supply with the ignition on. Hall-effect types want roughly 5V on the feed. No supply means the fault is upstream in the wiring, not the sensor 5. Hook up an oscilloscope and crank the engine. A healthy sensor gives a steady square wave around 2-5V. A flat line or ragged trace while everything else is good confirms the sensor 6. Only fit a new crank sensor once the wiring and supply have p

Ignition/Distributor Engine Speed Input Circuit No Signal

Jump to the fix

Severity

High

Can I keep driving?

Avoid extended driving; visit a service soon.

First step

A typical diagnostic sequence used by mechanics, provided here for educational reference only. Diagnostic work should be performed by a qualified mechanic with the appropriate tools and training. 1. Plug in a scanner and read every stored code, not just this one. Other crank and cam sensor codes (P0335, P0340) point you straight at the circuit and tell you how many sensors are involved 2. Get under the car and eyeball the crank sensor connector and harness.

PPowertrain
0Generic code
3Ignition / Misfire
22Sequence number

What does it mean?

P0322 is a OBD II fault code that indicates that there is an issue with the Ignition/Distributor Engine Speed Input Circuit. This code is also commonly referred to as a crankshaft or camshaft position sensor error code. The Engine Control Module (ECM) has detected an issue with the the rotation speed or the position of the crankshaft or camshaft.

The ECM receives an input from the crankshaft and camshaft position sensors based on the engine configuration and the year, make and model of the vehicle. The input is used to monitor the speed and position of the crankshaft and camshaft. Some automobiles also incorporate an ignition/distributor speed sensor that is monitored by the ECM. This information is used to adjust the ignition timing and the fuel settings to adapt to engine load variations and improve performance.

Symptoms

Likely causes

How to fix it

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This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.