P2213 – Audi DTC

Audi DTC P2213 – NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue

DTC P2213 meaning on Audi

DTC P2213 refers to a diagnostic trouble code indicating a problem with the NOx (Nitrogen Oxide) sensor in Audi vehicles. This code specifically points to a malfunction in the NOx sensor circuit, which is crucial for monitoring emissions and ensuring the engine runs efficiently. The NOx sensor measures the amount of nitrogen oxides in the exhaust gases, helping the engine control module (ECM) adjust the air-fuel mixture for optimal combustion.

Audi DTC P2213 symptoms

Common symptoms associated with DTC P2213 may include:

• Check Engine Light illuminated
• Increased emissions
• Reduced engine performance
• Decreased fuel efficiency
• Rough idling or stalling

Audi DTC P2213 causes

The causes of DTC P2213 can vary, but typical issues include:

• Faulty NOx sensor
• Powertrain Control Module (PCM) failure
• Wiring issues, such as damaged or corroded connectors
• Exhaust leaks affecting sensor readings
• Contaminated sensor due to oil or coolant leaks

Audi DTC P2213 seriousness

DTC P2213 is considered a serious issue as it can lead to:

• Increased emissions, potentially failing emissions tests
• Engine performance issues, affecting drivability
• Long-term damage to the engine or exhaust system if not addressed

How to diagnose DTC P2213 on Audi

To diagnose DTC P2213, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC P2213.
2. Inspect the NOx sensor and its wiring for any visible damage or corrosion.
3. Check for any additional trouble codes that may provide more context.
4. Test the NOx sensor using a multimeter to ensure it is functioning within specifications.
5. Examine the PCM for any signs of failure or software issues.

How to fix DTC P2213 on Audi step-by-step instructions

To fix DTC P2213, follow these steps:

1. Clear the DTC using an OBD-II scanner.
2. Inspect and repair any damaged wiring or connectors related to the NOx sensor.
3. If the NOx sensor is faulty, replace it with a new one.
4. Check for exhaust leaks and repair as necessary.
5. Recheck the system for any new or recurring codes after repairs.

How to erase DTC P2213 on Audi

To erase DTC P2213, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the ‘Erase Codes’ or ‘Clear DTCs’ option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the engine to ensure the code does not return.

Recommended tools for Audi diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.