U0714 - Understanding DTC U0714: Common Issues in 2015-2020 Ford and Chrysler Vehicles

Quick Answer

U0714 means: U0714 indicates a communication issue between the transmission control module and other vehicle systems.

Fix: Check and replace faulty components Cost: $400 - $1,200 Time: 90-180 minutes

Can I drive with U0714? Address the issue as soon as possible to prevent further damage to the transmission system.

Common Questions

What does U0714 mean and how does it affect my car?

The U0714 code indicates a problem with communication between your vehicle's transmission control module (TCM) and other systems. This can lead to erratic shifting, reduced performance, and even transmission failure if not addressed. It's important to diagnose and repair this issue promptly.

What are the most common causes of U0714 and how much does it cost to fix?

Common causes include a faulty TCM, damaged wiring, and software issues. Repair costs can range from $100 for simple wiring repairs to $1,200 for a TCM replacement, depending on the severity of the issue.

Can I drive my car with U0714 or should I stop immediately?

While you may still be able to drive your vehicle, doing so could put additional strain on your transmission and lead to more severe damage. It's advisable to have the issue diagnosed as soon as possible to avoid costly repairs.

How can I diagnose U0714 myself using GeekOBD APP?

Use the GeekOBD APP to scan for trouble codes and retrieve freeze frame data. This will help you understand the context of the U0714 code and any related issues. The app can guide you through testing components and checking for wiring problems.

What vehicles are most commonly affected by U0714?

The U0714 code is frequently seen in 2015-2020 Ford and Chrysler models, including the Ford F-150 and Dodge Ram. Check for any recalls or technical service bulletins related to these vehicles for additional guidance.

How can I prevent U0714 from happening again?

Regular maintenance, such as checking battery voltage, updating software, and inspecting wiring harnesses, can help prevent U0714. Additionally, using quality parts during repairs will ensure long-term reliability.

What is U0714?

DTC U0714 is a diagnostic trouble code indicating a communication issue within the Controller Area Network (CAN) bus, specifically relating to the transmission control module (TCM). This code can arise in various vehicles, but it's notably prevalent in 2015-2020 Ford and Chrysler models. When this code is triggered, it usually means that the TCM is unable to communicate effectively with other modules, which can lead to transmission problems. If the TCM can't relay information to the engine control unit (ECU) or other critical systems, you may experience erratic shifting, poor acceleration, or even complete transmission failure in severe cases. The most significant real-world implication of a U0714 code is that it can compromise the safety and drivability of your vehicle, as it directly affects how power is delivered to the wheels. If you see this code, it's crucial to address it quickly to avoid costly repairs down the line. Ignoring this code can lead to more severe transmission issues, resulting in a substantial financial burden. Therefore, understanding and resolving a U0714 code promptly is essential for vehicle reliability and safety.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0714 is present:

Check engine light stays on constantly, indicating a persistent issue with the transmission's electronic controls.
Transmission may hesitate or jerk during acceleration, which can be felt as a rough shift when changing gears.
Fuel economy may decrease by 10-15%, which can lead to increased fuel expenses over time.
The vehicle may enter 'limp mode,' restricting performance to protect the engine and transmission from damage.
Unusual noises from the transmission, such as grinding or whining, which can signal internal failure.

Possible Causes

Most common causes of U0714 (ordered by frequency):

{'cause': 'Faulty Transmission Control Module (TCM)', 'likelihood': '40%', 'details': 'A malfunctioning TCM can fail to send or receive necessary signals, triggering the U0714 code.'}
{'cause': 'Damaged Wiring or Connectors', 'details': 'Corroded, frayed, or loose wiring can disrupt communication between the TCM and other modules, leading to this code.'}
{'cause': 'Software Issues', 'details': "Outdated or corrupt software in the TCM can also cause communication failures; regularly updating your vehicle's software can help prevent this."}
{'cause': 'Faulty CAN Bus', 'details': 'The CAN bus system is critical for communication between modules. If it becomes damaged, U0714 can appear.'}
{'cause': 'Poor Battery Voltage', 'details': "Low battery voltage can affect the TCM's performance, leading to communication issues and triggering the U0714 code."}

U0714 Repair Costs

Cost Breakdown by Repair Type

Transmission Control Module Replacement

Replacing the faulty TCM with a new unit to restore communication.

Total: $400 - $1,200
Success rate: 90%

Wiring Repair or Replacement

Repairing or replacing damaged wiring and connectors to restore function.

Total: $100 - $500
Success rate: 85%

Money-Saving Tips for U0714

Start with the most common and least expensive repairs first
Use GeekOBD APP to confirm diagnosis before replacing expensive parts
Consider preventive maintenance to avoid future occurrences
Compare prices for OEM vs aftermarket parts based on your needs
Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional U0714 Diagnosis Process

Follow these systematic steps to accurately diagnose U0714. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).