P0335
Crankshaft Position Sensor 'A' Circuit Malfunction
This code indicates a problem with the signal from your engine's crankshaft position sensor, which is crucial for the car's computer to know the engine's speed and piston position. Without this, the engine struggles to run or may not start.
Crankshaft Position Sensor 'A' Circuit Malfunction
Common causes
- high
Faulty Crankshaft Position Sensor
The sensor itself can fail, providing an intermittent or no signal to the PCM.
Typical part cost: $40-150 part
- medium
Wiring Harness Issues (open, short, corrosion)
Damaged wires or corroded connectors can prevent the sensor signal from reaching the PCM.
Typical part cost: $0-150 for repair
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First things to check
- 1Inspect the crankshaft position sensor wiring and connector for damage, corrosion, or loose connections.
- 2Test the crankshaft position sensor's resistance and signal output using a multimeter or oscilloscope.
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Related codes
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Frequently asked questions
What does the crankshaft position sensor do?
The crankshaft position sensor monitors the rotational speed and position of the crankshaft. This information is vital for the engine computer to accurately control ignition timing and fuel injection.
Can a bad crankshaft sensor prevent my car from starting?
Yes, absolutely. If the engine computer doesn't receive a signal from the crankshaft position sensor, it won't know when to fire the spark plugs or inject fuel, preventing the engine from starting.
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