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 communicating with the part that controls shifting gears in the transmission. It's like if your remote control stopped talking to your TV.
The transmission control module (TCM) is responsible for managing gear shifts in a vehicle. A P1714 code indicates that the TCM has detected an error in the shift-by-wire system, which electronically controls gear changes.
The P1714 code is triggered when the transmission control module (TCM) identifies a fault in the shift-by-wire system's internal monitoring. This system uses electronic signals to control gear shifts instead of traditional mechanical linkages. A level 2 error suggests a significant deviation from expected operation, potentially affecting the vehicle's ability to shift gears properly.
• Check engine light is on
• Transmission may not shift properly
• Vehicle may enter 'limp' mode
• Faulty transmission control module
• Wiring issues or poor connections
• Software glitches in the TCM
Transmission Control Module (TCM): A computer that controls the transmission's functions.
Shift-by-Wire: A system that uses electronic controls to change gears instead of mechanical linkages.
• Check for other related codes
• Inspect TCM and wiring for damage
• Test the shift-by-wire system functionality
• Repair or replace damaged wiring
• Reprogram or replace the TCM
• Perform a system reset and test drive
• OBD-II scanner
• Multimeter
• Diagnostic software
$200 - $1200
Moderate
• Nissan Altima
• Infiniti Q50
• Hyundai Sonata
• Regularly update vehicle software
• Inspect transmission wiring periodically
• Avoid harsh driving conditions
Transmission Control System Issue
• Avoid driving the vehicle until repaired
• Consult a professional mechanic
• Keep a record of any recurring issues
Transmission components may be covered under powertrain warranty. Check with the manufacturer.
The P1714 code has been reported in vehicles with electronic shift controls, particularly in models with advanced transmission systems.
High – This issue can affect vehicle drivability and should be addressed promptly.
Driving with a faulty transmission control system can be unsafe. Address the issue to ensure compliance with safety standards.
• Vehicle must be in a safe, stationary position
• Ensure the ignition is in the 'on' position without starting the engine
The transmission control module is typically located within the transmission housing or nearby in the engine bay.
Q: Can I drive with a P1714 code?
A: It's not recommended, as it may cause further damage or unsafe driving conditions.
Q: How do I reset the TCM?
A: A professional mechanic can reset the TCM using specialized diagnostic tools.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.