Engine-Codes - Gmc - P1323 GMC

P1323 GMC - IC 24X Reference Circuit Low Frequency

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1323 GMC Possible Causes

  • Faulty 24X CKP sensor
  • 24X CKP sensor harness is open or shorted
  • 24X CKP sensor circuit poor electrical connection

How do I fix code P1323 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's pins.

Cost of diagnosing the P1323 GMC code

Labor: 1.0

The cost of diagnosing the P1323 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1323 GMC Meaning

The Ignition Control Module creates a 4X signal and a 24X signal that is used by the PCM for ignition and fuel control. In this diagnostic test, the PCM checks for 4X reference pulses being received without 24X reference pulses. When the engine is running and the PCM is receiving 4X reference pulses without 24X reference pulses and the 24X reference signal line is low for 4 seconds, DTC P1323 is set.

P1323 GMC More Information

Need more information on how to fix the P1323 GMC code?
Get Access to Factory Service Manuals

Need more help?

Get the P1323 Gmc code diagnosed by a professional: Find a repair shop in your area