The P0723 trouble code indicates an intermittent signal from the output speed sensor in the transmission. The output speed sensor monitors the speed of the transmission output shaft, which is essential for determining shift timing and other transmission functions.
P0723 Output Speed Sensor Intermittent
Code symptoms P0723.
1. Check Engine Light (CEL) illuminated on the dashboard.
2. Erratic or harsh shifting.
3. Transmission slipping or overheating.
4. Inconsistent or inaccurate speedometer readings.
5. Vehicle may go into “limp mode” to prevent further damage.
6. Intermittent loss of power or poor acceleration.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0723.
1. Loose or poor electrical connections at the output speed sensor or in the circuit.
2. Damaged or corroded wiring harness leading to the sensor.
3. Faulty output speed sensor.
4. Intermittent internal fault in the transmission control module (TCM) or engine control module (ECM).
5. Intermittent short circuit or open circuit in the output speed sensor circuit.
Code Solutions P0723.
1. Inspect the output speed sensor and its wiring harness for any signs of damage, corrosion, or wear. Secure any loose connections and repair or replace damaged wiring as necessary.
2. Use a multimeter to test the sensor for continuity and proper operation. Replace the sensor if it fails the test.
3. Perform a comprehensive diagnosis of the TCM or ECM and related circuits to identify any intermittent faults. This may require advanced diagnostic equipment and expertise.
4. Clear the trouble codes from the TCM or ECM memory and perform a test drive to see if the issue recurs. Monitor the vehicle for any further symptoms.
5. If you’re not comfortable performing the diagnostics and repairs yourself, it’s best to seek assistance from a qualified mechanic or dealership. They can use specialized tools and equipment to diagnose the problem accurately and make the necessary repairs.