Engine-Codes - GMC - P0339 GMC

P0339 GMC Code - Crankshaft Position Sensor Circuit Intermittent

- Code Popularity: 12,600 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0339 GMC?

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
  • Signal plate may be damage
  • Starter motor may be faulty
  • Starting system circuit
  • Dead or weak battery
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How to Fix the DTC P0339 GMC?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0339 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The crankshaft position sensor (POS) signal is not detected by the Powertrain Control Module (PCM) at times

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine Cranks but Does Not Start
  • Lack/Loss of Power
  • Engine Stall

What Does the P0339 GMC Code Mean?

The Crankshaft Position Sensor (CKP) also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. This information is used by the Powertrain Control Module (PCM) to control ignition and fuel injection. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.

P0339 GMC Code - Crankshaft Position Sensor Circuit Intermittent

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