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Engine-Codes – Generic – P0723

P0723 Code - Output Shaft Speed Sensor Circuit Intermittent Failure

Quick Answer

The P0723 diagnostic trouble code (DTC) refers to an intermittent failure in the output shaft speed sensor circuit. Common causes include Damaged wiring or connectors in the output shaft speed sensor circuit, Faulty output shaft speed sensor, Issues with the transmission control module. 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
P0723 indicates Output Shaft Speed Sensor Circuit Intermittent Failure.
Common causes
Common causes include Damaged wiring or connectors in the output shaft speed sensor circuit, Faulty output shaft speed sensor, Issues with the transmission control module.
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 P0723 Description

The P0723 diagnostic trouble code (DTC) refers to an intermittent failure in the output shaft speed sensor circuit. The output shaft speed sensor is a crucial component of a vehicle's transmission system, responsible for monitoring the speed of the output shaft in relation to the engine speed. This information is vital for the transmission control module to determine the appropriate gear shifting points and ensure smooth operation of the transmission system.

OBDII Code P0723 - Output Shaft Speed Sensor Circuit Intermittent Failure
P0723 Code - Output Shaft Speed Sensor Circuit Intermittent Failure

Common Causes of P0723

  1. Damaged wiring or connectors in the output shaft speed sensor circuit
  2. Faulty output shaft speed sensor
  3. Issues with the transmission control module
  4. Corrosion or debris affecting sensor operation
  5. Electrical interference or signal disruption

Symptoms of P0723

  1. Erratic or harsh shifting of gears
  2. Jerky acceleration
  3. Decreased fuel efficiency
  4. Transmission stuck in one gear
  5. Illumination of the Check Engine Light

How to Fix P0723

  1. Begin by conducting a thorough visual inspection of the output shaft speed sensor circuit, checking for any damaged wiring or connectors. Repair or replace any damaged components as needed.
  2. Test the output shaft speed sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is found to be faulty.
  3. Verify proper operation of the transmission control module and address any issues that may be affecting its performance.
  4. Clear the DTC from the vehicle's computer using a scan tool and test drive the vehicle to confirm that the issue has been resolved.
  5. If the problem persists, consult a professional mechanic or transmission specialist for further diagnosis and repair.

Cost to Fix P0723

The typical repair costs for resolving a P0723 code can vary depending on the specific cause of the issue. On average, the cost of replacing an output shaft speed sensor ranges from $100 to $300, including parts and labor. Additional costs may apply if there are other underlying issues affecting the transmission system. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.

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Code P0723 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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