P0722 2018 GMC Sierra Code - Transmission Output Speed Sensor Circuit No Signal
Quick Answer
The P0722 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Transmission Output Speed Sensor Circuit, specifically a lack of signal being received. Common causes include Faulty transmission output speed sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit. 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
- P0722 2018 GMC Sierra indicates Transmission Output Speed Sensor Circuit No Signal.
- Common causes
- Common causes include Faulty transmission output speed sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit.
- 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.
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Code P0722 2018 GMC Sierra Description
The P0722 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Transmission Output Speed Sensor Circuit, specifically a lack of signal being received. The transmission output speed sensor is a crucial component that monitors the speed of the output shaft of the transmission. This information is essential for the transmission control module (TCM) to determine shift points, torque converter lockup, and other transmission functions.
Common Causes of P0722 2018 GMC Sierra
- Faulty transmission output speed sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or poor connections in the sensor circuit
- Issues with the TCM
- Mechanical issues with the transmission itself
Symptoms of P0722 2018 GMC Sierra
- Erratic shifting
- Harsh shifting
- Delayed engagement
- Transmission going into limp mode
- Check Engine Light illuminated
How to Fix P0722 2018 GMC Sierra
- Begin by diagnosing the P0722 code using a scan tool to verify the lack of signal from the transmission output speed sensor.
- Inspect the wiring and connectors in the sensor circuit for any damage, corrosion, or poor connections. Repair or replace as necessary.
- Test the transmission output speed sensor using a multimeter to determine if it is faulty. Replace the sensor if it is not functioning correctly.
- Clear the DTC and test drive the vehicle to ensure the code does not return and that the transmission is operating properly.
- If the issue persists, further diagnostics may be required to identify any underlying problems with the TCM or transmission components.
Cost to Fix P0722 2018 GMC Sierra
The typical repair costs for addressing a P0722 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a transmission output speed sensor can range from $100 to $300, including parts and labor. However, if additional repairs or diagnostics are needed, the total cost could increase. It's essential to consult with a qualified mechanic or repair shop to get an accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates and part prices can vary based on location, vehicle make and model, and other factors.
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