Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a low voltage signal from the sensor that tells it how much you're pressing the gas pedal. It's like the car can't hear you when you say 'go faster!'
The P11A4 code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the throttle or pedal position sensor circuit for Bank 2.
The throttle/pedal position sensor/switch provides the ECM with information about the position of the throttle or pedal. The ECM uses this information to control engine power and efficiency. A low voltage signal indicates a problem in the sensor circuit, which can affect engine performance.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty throttle/pedal position sensor
• Wiring issues such as a short or open circuit
• Poor electrical connection at the sensor
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the throttle/pedal position sensor.
• Test the sensor's voltage and resistance.
• Repair or replace damaged wiring.
• Clean and secure electrical connections.
• Replace the throttle/pedal position sensor if faulty.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• BMW 3 Series
• Audi A4
• Mercedes-Benz C-Class
• Regularly inspect and maintain electrical connections.
• Avoid harsh driving conditions that may damage wiring.
• Schedule periodic vehicle check-ups.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you notice performance issues.
Check with your vehicle manufacturer for specific warranty coverage on sensors.
This code has been associated with sensor and wiring issues in various models, often due to wear and tear or environmental factors.
Moderate – While the car may still run, it can lead to further engine performance issues if not addressed.
Driving with a faulty throttle/pedal position sensor can lead to unpredictable vehicle behavior, increasing the risk of accidents.
• Engine running
• Vehicle in park or neutral
The throttle/pedal position sensor is typically located near the throttle body or on the accelerator pedal assembly.
Q: Can I drive with a P11A4 code?
A: It's possible to drive, but not recommended as it can lead to further issues.
Q: How can I prevent this code from occurring?
A: Regular maintenance and inspections of the sensor and wiring can help prevent this issue.
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