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P1323 Buick Code - 24X Reference Circuit Low Frequency

Quick Answer

The P1323 Buick code refers to a 24X Reference Circuit Low Frequency error. Common causes include Faulty 24X crankshaft position sensor, Damaged wiring harness, Loose connection between sensor and ECM. 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
P1323 Buick indicates 24X Reference Circuit Low Frequency.
Common causes
Common causes include Faulty 24X crankshaft position sensor, Damaged wiring harness, Loose connection between sensor and ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1323 Buick Description

The P1323 Buick code refers to a 24X Reference Circuit Low Frequency error. This code typically indicates an issue with the signal sent by the 24X crankshaft position sensor to the engine control module (ECM). The 24X reference signal is crucial for the ECM to accurately calculate the engine's timing and fuel injection. When the frequency of this signal is too low, it can lead to misfires, poor engine performance, and potential stalling.

OBDII Code P1323 Buick - 24X Reference Circuit Low Frequency
P1323 Buick Code - 24X Reference Circuit Low Frequency

Common Causes of P1323 Buick

  1. Faulty 24X crankshaft position sensor
  2. Damaged wiring harness
  3. Loose connection between sensor and ECM
  4. ECM malfunction
  5. Other related component issues

Symptoms of P1323 Buick

  1. Rough idling
  2. Engine misfires
  3. Reduced fuel efficiency
  4. Hesitation during acceleration
  5. Engine stalling

How to Fix P1323 Buick

  1. Begin by diagnosing the issue using a scan tool to confirm the P1323 Buick code.
  2. Inspect the wiring harness for any damage or loose connections. Repair or replace as needed.
  3. Test the 24X crankshaft position sensor for proper functionality. Replace if faulty.
  4. Check the ECM for any malfunctions and address accordingly.
  5. Clear the error code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1323 Buick

The cost of repairing a P1323 Buick code can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty 24X crankshaft position sensor can range from $100 to $200, including parts and labor. If the issue is related to wiring harness repair or ECM replacement, the cost can increase significantly. It's important to factor in diagnostic time and labor rates, which can vary between auto repair shops. It's recommended to consult with a professional technician for an accurate cost estimate based on your vehicle's make and model.

When is the Code Detected?

No 24X reference pulses received by the Powertrain Control Module (PCM) and the line is low for 4 seconds.

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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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