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Code P0931

Quick reference

P0931 at a glance

Plain-language meaning
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.
Urgency
Moderate – This issue can prevent the vehicle from being driven if the gear shifter is locked.
Difficulty
Moderate
System
Electrical Circuit Issue
Tools mentioned
Multimeter, Screwdriver set, OBD-II scanner

This summary uses the existing diagnostic information shown in full below.

Laymans terms

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.

Explanation

The P0931 code indicates that the control circuit for the gear shift lock solenoid or actuator is experiencing a high voltage condition.

Technical description

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.

Symptoms

• Unable to shift out of 'Park'

• Check Engine Light illuminated

• Unusual clicking noise near the shifter

Common Causes

• Faulty gear shift lock solenoid

• Short circuit in the wiring

• Defective control module

Glossary

Solenoid: A coil of wire that acts as a magnet when carrying electric current.

Actuator: A device that causes a mechanism to operate.

Diagnosis steps

• 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.

Repair procedures

• Replace the faulty gear shift lock solenoid.

• Repair or replace damaged wiring and connectors.

• Replace the control module if necessary.

Tools required

• Multimeter

• Screwdriver set

• OBD-II scanner

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford Fusion

Preventive measures

• Regularly inspect wiring for wear and tear.

• Ensure connectors are clean and secure.

• Avoid forcing the gear shifter.

Error code type

Electrical Circuit Issue

User experience recommendations

• Do not force the gear shifter if it is stuck.

• Consult a professional mechanic if unsure about repairs.

Warranty information

Check with your vehicle's manufacturer for warranty coverage on electrical components.

Historical data

This code has been associated with vehicles experiencing issues with the gear shift interlock system, often due to electrical faults.

Urgency level

Moderate – This issue can prevent the vehicle from being driven if the gear shifter is locked.

Testing conditions

• Vehicle in 'Park'

• Brake pedal pressed

Component location

The gear shift lock solenoid is typically located near the gear shifter assembly within the center console.

FAQs

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.

Optional diagnostic gear

Tools that may help diagnose P0931

FOXWELL Multi-System Scanner diagnostic tool illustration

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 Amazon
EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" 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.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle 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 Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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