Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble figuring out how far the throttle can open on one side of the engine.
This code indicates that the throttle valve on Bank 2 of the engine has not properly learned its maximum open position.
The throttle valve adaptation process allows the engine control module (ECM) to learn the mechanical limits of the throttle valve. This code is triggered when the ECM detects that the upper mechanical stop of the throttle valve on Bank 2 has not been adapted correctly, meaning it cannot determine the fully open position.
• Check Engine Light is on
• Poor engine performance
• Engine stalling or hesitation
• Faulty throttle body
• Wiring issues in the throttle control circuit
• Faulty ECM
Throttle Valve: A component that regulates the amount of air entering the engine.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the throttle body for damage or obstruction.
• Check the wiring and connectors in the throttle control circuit.
• Clean or replace the throttle body.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Throttle body cleaner
$150 - $500
Moderate
• Audi A4
• Volkswagen Passat
• Porsche Cayenne
• Regularly clean the throttle body.
• Ensure proper maintenance of the engine control system.
• Inspect wiring and connectors periodically.
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
• Avoid driving at high speeds until the issue is resolved.
Check your vehicle's warranty; throttle body issues might be covered under powertrain warranty.
Throttle adaptation issues have been common in vehicles with electronic throttle control systems.
Moderate – The vehicle may still be drivable, but performance issues could worsen over time.
Ignoring this issue could lead to decreased vehicle performance and potential safety risks.
• Engine at operating temperature
• Vehicle in park or neutral
The throttle body is typically located between the air filter and the intake manifold.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and increased fuel consumption.
Q: Can I fix this issue myself?
A: If you have mechanical experience, you can attempt to clean the throttle body and check wiring, but more complex repairs should be done by a professional.
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