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Engine-Codes – Generic – P1375

P1375 Code - IC 24X Reference Circuit High Voltage

Quick Answer

The P1375 diagnostic trouble code (DTC) refers to an issue with the IC 24X Reference Circuit in the vehicle. Common causes include Faulty crankshaft or camshaft position sensor, Wiring or connector issues in the IC 24X Reference Circuit, 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
P1375 indicates IC 24X Reference Circuit High Voltage.
Common causes
Common causes include Faulty crankshaft or camshaft position sensor, Wiring or connector issues in the IC 24X Reference Circuit, 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 07, 2024
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Code P1375 Description

The P1375 diagnostic trouble code (DTC) refers to an issue with the IC 24X Reference Circuit in the vehicle. This code indicates that the voltage in this circuit is higher than the specified range, causing a malfunction in the vehicle's ignition control system. The IC 24X Reference Circuit is responsible for providing the Engine Control Module (ECM) with essential data regarding the position of the crankshaft and camshaft. This information is crucial for the ECM to accurately control the ignition timing and fuel injection processes.

OBDII Code P1375 - IC 24X Reference Circuit High Voltage
P1375 Code - IC 24X Reference Circuit High Voltage

Common Causes of P1375

  1. Faulty crankshaft or camshaft position sensor
  2. Wiring or connector issues in the IC 24X Reference Circuit
  3. ECM malfunction
  4. Excessive resistance in the circuit
  5. Voltage regulator malfunction

Symptoms of P1375

  1. Engine misfires
  2. Rough idling or stalling
  3. Reduced engine power
  4. Check Engine Light illuminated
  5. Poor fuel economy

How to Fix P1375

  1. Diagnose the issue by using a scan tool to retrieve the DTC and perform a thorough inspection of the IC 24X Reference Circuit components.
  2. Check the wiring and connectors for any signs of damage or corrosion. Repair or replace any damaged components.
  3. Test the crankshaft and camshaft position sensors for proper operation. Replace any faulty sensors.
  4. Verify the voltage regulator's functionality and replace it if necessary.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1375

The cost of repairing a P1375 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this problem can range from $150 to $500, including parts and labor. It is advisable to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model, as well as the extent of the repairs required. Keep in mind that diagnostic time and labor rates can vary, so it's essential to inquire about these details before proceeding with the repairs.

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Code P1375 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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