U0207 - DTC U0207 - Lost Communication with Vehicle Control Module - Common in 2015-2018 Ford Explorer and More

Quick Answer

U0207 means: U0207 means lost communication with the transmission control module.

Fix: Check and replace faulty components Cost: $150 - $400 Time: 90-180 minutes

Can I drive with U0207? Immediate attention is needed to prevent further damage to the transmission system.

Common Questions

What does U0207 mean and how does it affect my car?

The U0207 code indicates a loss of communication with the transmission control module, which can lead to performance issues like erratic shifting or even prevent the vehicle from starting. If left unresolved, it can cause further damage to the transmission system.

What are the most common causes of U0207 and how much does it cost to fix?

Common causes include damaged wiring, faulty TCMs, and connector issues. Repair costs can range from $150 for wiring repairs to $1,200 for TCM replacement, depending on the severity of the issue.

Can I drive my car with U0207 or should I stop immediately?

It's advisable to avoid driving your car until the issue is diagnosed and repaired. Driving with a U0207 code can lead to further damage and unsafe driving conditions.

How can I diagnose U0207 myself using GeekOBD APP?

Using the GeekOBD APP, you can scan for trouble codes and view freeze frame data to understand how the vehicle was performing when the code was triggered. This can help identify if the issue is temporary or persistent.

What vehicles are most commonly affected by U0207?

The U0207 code is frequently seen in the 2015-2018 Ford Explorer, but it can also occur in other models with similar transmission systems, including select Dodge, Jeep, and Chrysler vehicles.

How can I prevent U0207 from happening again?

Regular maintenance, including checking wiring and connections, can help prevent future occurrences of U0207. Keeping the vehicle's software updated and addressing any warning lights promptly can also be beneficial.

What is U0207?

The DTC U0207 code indicates that there is a communication problem between the vehicle control modules, specifically a loss of communication with the transmission control module (TCM). This can happen for various reasons, including damaged wiring, poor connections, or even a malfunctioning module. In practical terms, this means that the vehicle may experience issues with shifting gears or may not start at all in some cases. When the U0207 code is triggered, it signifies that the vehicle's onboard diagnostic system has detected a disruption in the data flow between the engine control unit (ECU) and the TCM. This can lead to performance issues, such as erratic shifting or even the vehicle entering a fail-safe mode, which limits engine power to prevent damage. For vehicle owners, understanding this code is crucial as it can result in significant repair costs if not addressed promptly. It's essential to have a professional technician diagnose the issue, as they can utilize specialized tools like the GeekOBD APP to read the codes and pinpoint the exact problem. The U0207 code is particularly common in vehicles like the 2015-2018 Ford Explorer and other similar models, making it vital for owners of these vehicles to be aware of the symptoms and potential causes.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0207 is present:

The check engine light remains illuminated, indicating a persistent issue with the vehicle's communication system.
You may experience rough or erratic shifting, which can make driving uncomfortable and affect safety.
Fuel economy may decrease significantly, with reports of a 10-15% drop due to poor engine performance.
The vehicle may enter limp mode, severely limiting speed and power to protect the engine and transmission.
In some cases, the vehicle may not start at all, leaving you stranded and requiring immediate troubleshooting.

Possible Causes

Most common causes of U0207 (ordered by frequency):

{'cause': 'Damaged Wiring and Connections', 'likelihood': '40%', 'details': 'Frayed or corroded wiring in the harness can interrupt communication between the ECU and TCM.'}
{'cause': 'Faulty Transmission Control Module', 'likelihood': '30%', 'details': 'A malfunctioning TCM can fail to send or receive signals, triggering the U0207 code.'}
{'cause': 'Connector Issues', 'likelihood': '20%', 'details': 'Loose or corroded connectors can prevent proper communication, often seen in older vehicles or those exposed to moisture.'}
{'cause': 'ECU Failure', 'likelihood': '5%', 'details': 'While rare, a failing ECU can also cause communication loss, requiring extensive diagnostics and replacements.'}
{'cause': 'Software Glitches', 'likelihood': '5%', 'details': 'Outdated or corrupt software can lead to communication errors; updating the vehicle’s software may resolve the issue.'}

U0207 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Repair or replace damaged wiring and connectors in the communication harness.

Total: $150 - $400
Success rate: 85%

Transmission Control Module Replacement

Replace the faulty TCM with a new or refurbished unit.

Total: $500 - $1,200
Success rate: 90%

Money-Saving Tips for U0207

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 U0207 Diagnosis Process

Follow these systematic steps to accurately diagnose U0207. 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).