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 getting information from the pedal that tells it how much gas you're giving the car.
This code indicates an electrical issue with the supply voltage to the pedal position sensor's potentiometer on channel 1.
The pedal position sensor is responsible for sending a signal to the engine control module (ECM) indicating the position of the accelerator pedal. The ECM uses this information to adjust the throttle position. Code P164C is triggered when there is an electrical issue with the supply voltage to the potentiometer in channel 1 of the pedal position sensor.
• Check Engine Light is on
• Reduced engine performance
• Unresponsive accelerator pedal
• Faulty pedal position sensor
• Damaged wiring or connectors
• Faulty ECM
ECM: Engine Control Module
Potentiometer: A variable resistor used to measure the position of the pedal
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pedal position sensor for proper voltage and resistance.
• Replace the pedal position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Volkswagen Golf
• Audi A4
• Skoda Octavia
• Regularly inspect electrical connections.
• Keep the engine bay clean to prevent corrosion.
• Ensure proper maintenance of the vehicle's electrical system.
Sensor Issue
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult a professional mechanic for a thorough diagnosis.
Check vehicle warranty for coverage on electrical components.
This code has been associated with issues in vehicles with electronic throttle control systems.
Moderate – Address the issue soon to avoid potential safety risks.
Driving with a malfunctioning pedal position sensor can lead to unsafe driving conditions.
• Vehicle at operating temperature
• Engine running
The pedal position sensor is located near the accelerator pedal inside the vehicle cabin.
Q: Can I drive with a P164C code?
A: It's not recommended as it can affect vehicle performance and safety.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after the repair is complete.
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