Engine-CodesChevrolet – P1371 Chevrolet

P1371 Chevrolet Code - Missing Low Resolution Signal

Quick Answer

The P1371 code for Chevrolet vehicles indicates a missing low-resolution signal, specifically related to the crankshaft position sensor. Common causes include Faulty crankshaft position sensor, Wiring issues or a poor connection, Sensor misalignment. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1371 Chevrolet indicates Missing Low Resolution Signal.
Common causes
Common causes include Faulty crankshaft position sensor, Wiring issues or a poor connection, Sensor misalignment.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1371 Chevrolet Description

The P1371 code for Chevrolet vehicles indicates a missing low-resolution signal, specifically related to the crankshaft position sensor. The crankshaft position sensor is a vital component that monitors the position and rotational speed of the crankshaft in the engine. This information is crucial for the engine control module (ECM) to determine ignition timing, fuel injection timing, and various other engine functions.

OBDII Code P1371 Chevrolet - Missing Low Resolution Signal
P1371 Chevrolet Code - Missing Low Resolution Signal

Common Causes of P1371 Chevrolet

  1. Faulty crankshaft position sensor
  2. Wiring issues or a poor connection
  3. Sensor misalignment
  4. ECM malfunctions
  5. Mechanical issues with the crankshaft

Symptoms of P1371 Chevrolet

  1. Engine misfires
  2. Difficulty starting the engine
  3. Rough idling or stalling
  4. Reduced engine performance
  5. Illumination of the Check Engine Light

How to Fix P1371 Chevrolet

  1. Diagnose the issue by using a diagnostic scanner to retrieve the trouble codes and test the crankshaft position sensor.
  2. Inspect the wiring harness and connections for any signs of damage or corrosion. Repair or replace as necessary.
  3. Check the alignment of the crankshaft position sensor and adjust it if needed.
  4. Replace the crankshaft position sensor if it is determined to be faulty.
  5. Clear the trouble codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1371 Chevrolet

The cost of repairing a missing low-resolution signal related to the crankshaft position sensor can vary depending on the specific cause of the issue. On average, the cost of replacing a crankshaft position sensor ranges from $100 to $300, including parts and labor. However, additional costs may apply if wiring repairs or ECM diagnosis is necessary. It is recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary between auto repair shops, so it's advisable to inquire about rates in your local area.

When is the Code Detected?

The Powertrain Control Module (PCM) detects a predetermined amount of high resolution pulses before detecting any low resolution pulses.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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