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P0335 Buick Code - Crankshaft Position Sensor Circuit

- Code Popularity: 15,675 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0335 Buick?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Crankshaft Position Sensor
  • Crankshaft Position Sensor harness is open or shorted
  • Crankshaft Position Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P0335 Buick?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0335 Buick code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine Cranks but Does Not Star
  • Engine Lack / Loss of Power
  • Engine may stall while driving

Code P0335 Buick Description

The crankshaft position sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes in the teeth and slots of the reluctor wheel on the crankshaft. The reluctor wheel is spaced at 60-tooth spacing, with two missing teeth for the reference gap. The reference gap is used to identify the crankshaft position at each start-up. The crankshaft position sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses per crankshaft revolution. The crankshaft position sensor sends a digital signal to the ECM as each tooth on the reluctor wheel rotates past the crankshaft position sensor. The ECM uses each crankshaft position signal pulse to determine the crankshaft speed position. This information is then used to determine the optimum ignition and injection points of the engine. The ECM also uses crankshaft position sensor output information to determine the camshaft's relative position to the crankshaft, control camshaft phasing, and detect cylinder misfire.
The ECM also has a dedicated replicated crankshaft position sensor signal output circuit that may be used as an input signal to other modules for monitoring engine RPM.
The Diagnostic Trouble Code (DTC) will be set when no signal is sent from the Crankshaft Position Sensor to the ECM for greater than 1s.

OBDII Code P0335 Buick - Crankshaft Position Sensor Circuit - AutoCodes.com
P0335 Buick Code - Crankshaft Position Sensor Circuit

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Code P0335 Buick comments

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