Engine-CodesBuick – P1372 Buick

P1372 Buick Code - Crankshaft Position Sensor A-B Correlation Conditions

Quick Answer

The P1372 Buick code indicates a problem with the correlation between the crankshaft position sensor A and sensor B. Common causes include Faulty crankshaft position sensors, Damaged wiring harness or connectors, Corrosion on sensor contacts. 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
P1372 Buick indicates Crankshaft Position Sensor A-B Correlation Conditions.
Common causes
Common causes include Faulty crankshaft position sensors, Damaged wiring harness or connectors, Corrosion on sensor contacts.
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 P1372 Buick Description

The P1372 Buick code indicates a problem with the correlation between the crankshaft position sensor A and sensor B. The crankshaft position sensor is a vital component in the engine management system, as it detects the position and speed of the crankshaft, which helps the engine control module (ECM) determine the ignition timing and fuel injection timing. When the ECM detects that the signals from the two sensors are not in sync, it triggers this diagnostic trouble code.

OBDII Code P1372 Buick - Crankshaft Position Sensor A-B Correlation Conditions
P1372 Buick Code - Crankshaft Position Sensor A-B Correlation Conditions

Common Causes of P1372 Buick

  1. Faulty crankshaft position sensors
  2. Damaged wiring harness or connectors
  3. Corrosion on sensor contacts
  4. Incorrect sensor installation
  5. ECM software issues

Symptoms of P1372 Buick

  1. Rough idling
  2. Stalling
  3. Poor acceleration
  4. Engine misfires
  5. Difficulty starting the vehicle

How to Fix P1372 Buick

  1. Diagnose the issue by connecting a scan tool to the vehicle's OBD-II port and reading the fault codes.
  2. Inspect the crankshaft position sensors, wiring harness, and connectors for any damage or corrosion.
  3. Replace any faulty sensors or repair damaged wiring as needed.
  4. Clear the fault codes from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, recheck the sensor alignment and wiring connections to ensure proper installation.

Cost to Fix P1372 Buick

The cost of repairing the P1372 Buick code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, you can expect to pay anywhere from $150 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to consult with a professional for a more accurate estimate.

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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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