Engine-CodesGeneric – P2751

P2751 Code - Intermediate Shaft Speed Sensor 'C' Circuit No Signal

Quick Answer

The P2751 diagnostic trouble code (DTC) refers to an issue with the Intermediate Shaft Speed Sensor 'C' circuit in a vehicle. Common causes include Faulty Intermediate Shaft Speed Sensor 'C', Damaged wiring or connectors in the sensor 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
P2751 indicates Intermediate Shaft Speed Sensor 'C' Circuit No Signal.
Common causes
Common causes include Faulty Intermediate Shaft Speed Sensor 'C', Damaged wiring or connectors in the sensor 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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P2751 Description

The P2751 diagnostic trouble code (DTC) refers to an issue with the Intermediate Shaft Speed Sensor 'C' circuit in a vehicle. This sensor is responsible for monitoring the speed of the intermediate shaft in the transmission. When the sensor fails to send a signal to the engine control module (ECM), it triggers the P2751 code, indicating a lack of communication between the sensor and the ECM.

OBDII Code P2751 - Intermediate Shaft Speed Sensor 'C' Circuit No Signal
P2751 Code - Intermediate Shaft Speed Sensor 'C' Circuit No Signal

Common Causes of P2751

  1. Faulty Intermediate Shaft Speed Sensor 'C'
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Transmission fluid contamination
  5. Mechanical issues in the transmission

Symptoms of P2751

  1. Rough or erratic shifting
  2. Transmission slipping out of gear
  3. Delayed engagement when shifting
  4. Illuminated Check Engine Light
  5. Limp mode activation

How to Fix P2751

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the trouble codes and confirm the presence of P2751.
  2. Inspect the wiring and connectors in the Intermediate Shaft Speed Sensor 'C' circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the Intermediate Shaft Speed Sensor 'C' using a multimeter to check for proper resistance and signal output. Replace the sensor if it fails the test.
  4. Clear the trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to identify any underlying mechanical issues in the transmission.

Cost to Fix P2751

The typical repair costs for addressing the P2751 code can vary depending on the specific cause of the issue. In general, replacing the Intermediate Shaft Speed Sensor 'C' or repairing damaged wiring/connectors can range from $150 to $300 for parts and labor. However, if the ECM needs to be replaced or there are additional transmission repairs needed, the cost can increase significantly.

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Code P2751 Information for Specific Makes

  • P2751 Dodge — Intermediate Shaft Speed Sensor 'C' Circuit No Signal
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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