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Engine-Codes – Generic – P1323

P1323 Code - 24X Reference Circuit Low Frequency

Quick Answer

The P1323 diagnostic trouble code (DTC) refers to a 24X reference circuit low frequency error. Common causes include Faulty wiring or connections in the 24X reference circuit, Malfunctioning sensor monitoring the crankshaft position, ECM malfunction. 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 indicates 24X Reference Circuit Low Frequency.
Common causes
Common causes include Faulty wiring or connections in the 24X reference circuit, Malfunctioning sensor monitoring the crankshaft position, ECM malfunction.
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 06, 2024
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Code P1323 Description

The P1323 diagnostic trouble code (DTC) refers to a 24X reference circuit low frequency error. This code is typically found in vehicles with an electronic ignition system and indicates a problem with the 24X reference signal that is used by the engine control module (ECM) to accurately time the spark and fuel injection. The 24X reference signal is generated by a sensor in the engine that monitors the position of the crankshaft.

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

Common Causes of P1323

  1. Faulty wiring or connections in the 24X reference circuit
  2. Malfunctioning sensor monitoring the crankshaft position
  3. ECM malfunction
  4. Corrosion or damage to the connectors related to the 24X reference circuit
  5. Electrical interference affecting the signal transmission

Symptoms of P1323

  1. Misfires
  2. Rough idling
  3. Poor acceleration
  4. Check engine light illuminated

How to Fix P1323

  1. Begin by using an OBD-II scanner to confirm the presence of the P1323 code and to gather any additional codes that may provide further insight into the issue.
  2. Inspect the wiring and connections related to the 24X reference circuit for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the sensor monitoring the crankshaft position to ensure it is functioning correctly. Replace if found to be faulty.
  4. Check the ECM for any faults or errors related to the 24X reference circuit. Reset or reprogram the ECM as needed.
  5. Clear the DTCs from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1323

The typical repair costs for addressing a P1323 code can range from $100 to $300, depending on the specific cause of the issue and the labor rates in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to get a few quotes from different shops to ensure you're getting a fair price. Additionally, the cost of any necessary parts or components will also contribute to the overall repair expenses.

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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Code P1323 Information for Specific Makes

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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