What is an OBD2 code?

An OBD2 (On-Board Diagnostics) code is a diagnostic trouble code (DTC) generated by your vehicle's computer system when it detects a problem. These codes help identify specific issues with your vehicle's engine, transmission, emissions, or other systems.

How do I read OBD2 codes?

To read OBD2 codes, you'll need an OBD2 scanner. Plug it into your vehicle's OBD2 port (usually located under the dashboard), turn your key to the 'ON' position, and follow your scanner's instructions to retrieve the codes. Each code starts with a letter (P, B, C, or U) followed by four numbers.

What do the different types of OBD2 codes mean?

OBD2 codes are categorized by their first letter: P (Powertrain) for engine and transmission issues, B (Body) for interior systems like airbags, C (Chassis) for mechanical systems like brakes, and U (Network) for computer and module communication problems.

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Home » OBD2 Codes » U0607

Code U0607

Symptoms

• Check engine light is on

• Transmission may not shift properly

• Reduced fuel efficiency

Common Causes

• Faulty transmission control module

• Damaged wiring or connectors

• Network communication issues

Glossary

Transmission Control Module (TCM): A computer that controls the transmission functions.

OBD-II: On-Board Diagnostics, a system to monitor vehicle performance and emissions.

Related Codes

• U0100

• U0101

Laymans terms

This code means that one of the computers in your car isn't talking to the others like it should. It's like when one of your friends isn't answering your texts.

Explanation

The U0607 code indicates a communication error between control modules.

Technical description

U0607 is a diagnostic trouble code (DTC) that signifies a lost communication with the transmission control module (TCM). This means that the TCM is not able to communicate with other control modules on the vehicle's network.

Diagnosis steps

• Inspect wiring and connectors for damage

• Check for other related trouble codes

• Test the transmission control module for faults

Repair procedures

• Repair or replace damaged wiring

• Replace faulty connectors

• Replace the transmission control module if necessary

Tools required

• OBD-II scanner

• Multimeter

• Wiring diagram

Estimated repair cost

$150 - $1200

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regular maintenance checks

• Ensure proper vehicle software updates

• Avoid exposure to extreme environmental conditions

Error code type

Network Communication Issue

User experience recommendations

• Have the vehicle inspected by a professional

• Do not ignore the check engine light

• Monitor any changes in vehicle performance

Warranty information

Check with your vehicle manufacturer as some communication issues may be covered under warranty.

Historical data

U0607 has been a common issue in vehicles with advanced electronic systems, often related to wear and tear or environmental factors.

Urgency level

Moderate – It should be addressed soon to avoid potential transmission issues.

Legal and safety notice

Ignoring this code may lead to further transmission issues, which could affect vehicle safety.

Testing conditions

• Vehicle must be on

• All electronic systems should be operational

Component location

The transmission control module is typically located near the transmission or under the dashboard.

FAQs

Q: Can I drive with a U0607 code?
A: It's not recommended, as it may lead to transmission issues. Have it checked as soon as possible.

Q: Will clearing the code fix the problem?
A: Clearing the code may turn off the check engine light temporarily, but the underlying issue needs to be fixed.

Last updated: Oct 29, 2025 • Source: internal database

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