Pro · Four-system diagnostics
FOXWELL Multi-System Scanner
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on AmazonEasy 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 part of the car that helps lock the gear shifter in place. It's like when a toy's button gets stuck and doesn't work right.
The P0931 code indicates that the control circuit for the gear shift lock solenoid or actuator is experiencing a high voltage condition.
The gear shift lock solenoid is responsible for preventing the gear shifter from moving out of the 'Park' position unless the brake pedal is pressed. A 'high' condition in the circuit suggests an excessive voltage is being detected, which may be due to a short circuit or a faulty solenoid.
• Unable to shift out of 'Park'
• Check Engine Light illuminated
• Unusual clicking noise near the shifter
• Faulty gear shift lock solenoid
• Short circuit in the wiring
• Defective control module
Solenoid: A coil of wire that acts as a magnet when carrying electric current.
Actuator: A device that causes a mechanism to operate.
• Check for any blown fuses related to the gear shift lock system.
• Inspect the wiring and connectors for damage or corrosion.
• Test the gear shift lock solenoid for proper operation.
• Replace the faulty gear shift lock solenoid.
• Repair or replace damaged wiring and connectors.
• Replace the control module if necessary.
• Multimeter
• Screwdriver set
• OBD-II scanner
$100 - $300
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect wiring for wear and tear.
• Ensure connectors are clean and secure.
• Avoid forcing the gear shifter.
Electrical Circuit Issue
• Do not force the gear shifter if it is stuck.
• Consult a professional mechanic if unsure about repairs.
Check with your vehicle's manufacturer for warranty coverage on electrical components.
This code has been associated with vehicles experiencing issues with the gear shift interlock system, often due to electrical faults.
Moderate – This issue can prevent the vehicle from being driven if the gear shifter is locked.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged before attempting any repairs.
• Vehicle in 'Park'
• Brake pedal pressed
The gear shift lock solenoid is typically located near the gear shifter assembly within the center console.
Q: Can I drive with a P0931 code?
A: You may not be able to drive if the gear shifter is locked in 'Park'.
Q: How do I reset the Check Engine Light after repairs?
A: Use an OBD-II scanner to clear the code after the issue is fixed.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.