Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that tells the car's computer how much you're pressing the gas pedal.
The pedal position sensor potentiometer is responsible for sending the position of the accelerator pedal to the engine control module (ECM). When there is a supply issue, the ECM cannot accurately determine the pedal position.
The P1623 code indicates a malfunction in the electrical supply to the pedal position sensor potentiometer. This sensor is crucial for determining the position of the accelerator pedal, which in turn informs the ECM how much power to deliver to the engine. A fault in the supply can cause incorrect readings or no readings at all.
• Reduced engine performance
• Check Engine Light illuminated
• Unresponsive accelerator pedal
• Faulty pedal position sensor
• Damaged wiring or connectors
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the pedal position sensor for proper operation.
• Replace the pedal position sensor.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regular maintenance checks
• Inspect wiring for damage periodically
• Ensure the pedal position sensor is clean and free from debris
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle diagnosed as soon as possible to avoid further damage.
Check with the vehicle manufacturer for warranty coverage on the pedal position sensor.
The P1623 code has been associated with issues in vehicles where the pedal position sensor wiring was susceptible to wear and tear.
Moderate – It is important to address this issue to ensure proper vehicle performance and safety.
Driving with a malfunctioning pedal position sensor can lead to unexpected vehicle behavior, which may be unsafe.
• Vehicle in idle
• Accelerator pedal pressed and released
The pedal position sensor is located on the accelerator pedal assembly.
Q: Can I drive with a P1623 code?
A: It's not recommended as it can lead to poor engine performance and safety issues.
Q: How do I reset the P1623 code?
A: After repairs, use an OBD-II scanner to clear the code from the ECM.
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