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 having trouble reading the position of the gear lever, which tells the car if it's in park, drive, or reverse.
The P0820 code is triggered when the transmission control module (TCM) detects a problem with the gear lever position sensor circuit.
The gear lever X-Y position sensor is responsible for sending the position of the gear lever to the transmission control module. This sensor helps the TCM understand which gear the driver has selected. If there is an issue with the sensor or its circuit, the TCM cannot accurately determine the gear position, leading to the P0820 code.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start or may start in the wrong gear
• Faulty gear lever position sensor
• Damaged or corroded wiring or connectors
• Malfunctioning transmission control module
TCM: Transmission Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code
• Inspect the gear lever position sensor for damage
• Check wiring and connectors for corrosion or damage
• Replace the gear lever position sensor
• Repair or replace damaged wiring or connectors
• Reprogram or replace the transmission control module if necessary
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Ford Focus
• Chevrolet Cruze
• Honda Civic
• Regularly inspect and maintain transmission components
• Ensure connectors are clean and secure
• Avoid harsh shifting or driving habits
Sensor Issue
• Do not ignore the Check Engine Light; get the car inspected
• Avoid driving the vehicle if it does not shift properly
• Consult a professional mechanic if unsure about repairs
Check with your vehicle manufacturer as some powertrain warranties may cover sensor issues.
This code has been associated with vehicles that have electronic gear shift systems and has been more common in models with advanced transmission systems.
Moderate – It's important to address this issue to prevent transmission damage or unsafe driving conditions.
Driving with a malfunctioning transmission can lead to unsafe driving conditions. Always ensure your vehicle is in proper working order.
• Vehicle parked on a flat surface
• Engine off and cool
The gear lever position sensor is typically located near the gear shift assembly inside the vehicle cabin.
Q: Can I drive with a P0820 code?
A: It's not recommended to drive with this code active as it can lead to improper shifting and unsafe driving conditions.
Q: How do I reset the P0820 code?
A: After repairs, use an OBD-II scanner to clear the code. However, if the issue is not fixed, the code will reappear.
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