P0722 Audi Code - Output Speed Sensor No Signal
Quick Answer
The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. Common causes include Faulty Speed Sensor, Speed Sensor harness is open or shorted, Speed Sensor circuit poor electrical connection. 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 Audi indicates Output Speed Sensor No Signal.
- Common causes
- Common causes include Faulty Speed Sensor, Speed Sensor harness is open or shorted, Speed Sensor circuit poor electrical connection.
- 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.
Code P0722 Audi Description
What are the Possible Causes of the DTC P0722 Audi?
- Faulty Speed Sensor
- Speed Sensor harness is open or shorted
- Speed Sensor circuit poor electrical connection
How to Fix the DTC P0722 Audi?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0722 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0722 Audi Code
1. What does the OBDII code P0722 mean on an Audi?
P0722 indicates that the transmission control module (TCM) is not receiving a signal from the output speed sensor, which monitors the speed of the transmission output shaft.
2. What are the common symptoms of code P0722 on an Audi?
Symptoms can include erratic shifting, delayed gear engagement, the transmission stuck in a single gear (limp mode), and the check engine light or transmission warning light turning on.
3. What causes the P0722 code to appear on an Audi?
Common causes include a faulty output speed sensor, damaged sensor wiring or connectors, issues with the TCM, or internal transmission problems.
4. How can I diagnose the P0722 code on my Audi?
Start by checking the wiring and connectors for damage or corrosion, test the output speed sensor for continuity with a multimeter, and inspect the TCM for faults. A scan tool can also verify speed sensor data.
5. Can I drive my Audi with the P0722 code active?
Driving with this code is not recommended, as it can lead to poor performance, transmission damage, or unsafe driving conditions due to erratic gear shifting.
6. How do I fix the P0722 code on an Audi?
Repairs may include replacing the output speed sensor, repairing damaged wiring or connectors, reprogramming or replacing the TCM, or addressing any internal transmission issues.
7. Where is the output speed sensor located in an Audi?
The output speed sensor is typically located on the transmission housing and monitors the rotation speed of the output shaft.
8. How much does it cost to fix the P0722 code on an Audi?
Repair costs can vary, but replacing the output speed sensor usually costs between $150 and $300, including parts and labor. Complex transmission or TCM repairs may cost more.
9. Can a dirty or low transmission fluid level trigger the P0722 code?
While not a direct cause, low or dirty transmission fluid can contribute to transmission issues that might indirectly trigger the code. Always ensure proper fluid levels and quality.
10. What tools are needed to troubleshoot the P0722 code on an Audi?
You’ll need an OBDII scan tool, a multimeter to test electrical components, and possibly a repair manual for specific wiring diagrams and procedures.
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