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P0336

Crankshaft Position Sensor A Circuit Range/Performance

The engine computer is not getting a crankshaft sensor signal that looks correct. This can cause hard starting, stalling, misfires, or no-start problems.

Severity4/5 High
Can I drive?⚠ With caution

The vehicle may stall, run poorly, or fail to start. Avoid long trips and get it diagnosed soon, especially if the engine is misfiring or cutting out.

DIY
$20–$150
Shop
$120–$450
Difficulty
intermediate

What It Means

P0336 means the powertrain control module detected a crankshaft position sensor A signal that is outside the expected range or not behaving consistently. The PCM uses this signal to calculate engine speed, ignition timing, and fuel injection timing. If the signal is missing, unstable, or incorrect, the PCM may set P0336 and limit engine operation.

Symptoms

Common Causes

1. Faulty crankshaft position sensorhigh
2. Damaged wiring, loose connector, or poor terminal contact at the crank sensorhigh
3. Contaminated sensor tip, metal debris, or excessive gap to the reluctor wheelmedium
4. Damaged reluctor wheel or crankshaft tone ringmedium
5. Intermittent power, ground, or reference voltage issue to the sensormedium
6. Engine mechanical timing problem such as a slipped timing chain or beltmedium
7. Faulty PCM or PCM software issuelow

Related Codes

P0335P0337P0338P0339P0340P0300

FAQ

Is P0336 usually the crankshaft sensor itself?

Often yes, but wiring, connectors, debris, or a damaged reluctor wheel can cause the same code.

Can P0336 cause a no-start?

Yes. If the PCM cannot read crankshaft position correctly, the engine may not start.

Will clearing the code fix it?

No. The code will usually return if the sensor signal problem is still present.

Should I replace the crank sensor first?

It is often a good first repair if wiring and connector checks are good, but do not replace it before inspecting the harness and connector.