P0721 Chrysler Code - Output Speed Sensor Circuit Performance
Quick Answer
The P0721 code for Chrysler vehicles indicates a problem with the output speed sensor circuit's performance. Common causes include Faulty output speed sensor, Damaged or corroded wiring/connectors in the output speed sensor circuit, Issues with the transmission control module (TCM). 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
- P0721 Chrysler indicates Output Speed Sensor Circuit Performance.
- Common causes
- Common causes include Faulty output speed sensor, Damaged or corroded wiring/connectors in the output speed sensor circuit, Issues with the transmission control module (TCM).
- 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 P0721 Chrysler Description
The P0721 code for Chrysler vehicles indicates a problem with the output speed sensor circuit's performance. The output speed sensor is a crucial component of the transmission system that monitors the speed of the output shaft and sends this information to the vehicle's engine control module (ECM). This data is essential for the ECM to determine the correct shift points for the transmission and ensure smooth operation.
Common Causes of P0721 Chrysler
- Faulty output speed sensor
- Damaged or corroded wiring/connectors in the output speed sensor circuit
- Issues with the transmission control module (TCM)
- Internal transmission problems
- ECM software issues
Symptoms of P0721 Chrysler
- Harsh shifting or delayed shifting
- Transmission slipping
- Hesitation or lack of response when accelerating
- Illumination of the Check Engine Light
- Vehicle going into limp mode
How to Fix P0721 Chrysler
- Begin by diagnosing the issue using a scan tool to retrieve the fault codes and perform a visual inspection of the output speed sensor and its wiring.
- Test the output speed sensor using a multimeter to check for proper resistance and voltage readings.
- Inspect and repair any damaged or corroded wiring/connectors in the output speed sensor circuit.
- If the output speed sensor is faulty, replace it with a new sensor following the manufacturer's guidelines.
- Clear the fault codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0721 Chrysler
The typical repair costs for addressing a P0721 code in a Chrysler vehicle can vary depending on the specific cause of the issue. In general, replacing a faulty output speed sensor can cost between $100 and $200 for the part, with additional costs for labor. Overall, the total repair cost, including parts and labor, may range from $200 to $400. However, it's essential to note that these are rough estimates, and actual costs can vary based on factors such as location, vehicle make and model, and labor rates at auto repair shops. It's advisable to consult with a professional technician for a more accurate cost estimate.
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