AutoCodes – Generic – U1107

U1107 Code - Invalid Or Missing Data For Legislated Diagnostics

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Module that is not communicating, Module harness is open or shorted, Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U1107 indicates Invalid Or Missing Data For Legislated Diagnostics.
Common causes: Common causes include Faulty Module that is not communicating, Module harness is open or shorted, Module circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 9,807

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1107 Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, the Diagnostic Trouble Code (DTC) is set.

OBDII Code U1107 - Invalid Or Missing Data For Legislated Diagnostics - AutoCodes.com — U1107 Code - Invalid Or Missing Data For Legislated Diagnostics

What does this mean?

What are the Possible Causes of the DTC U1107?

Faulty Module that is not communicating
Module harness is open or shorted
Module circuit poor electrical connection

How to Fix the DTC U1107?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1107 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U1107 code?

Need more information on how to fix the U1107 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1107 code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U1107 Code

1. What are common symptoms of OBDII code U1107?

- Common symptoms include the check engine light illuminating on the dashboard, issues with vehicle performance, and potential difficulties with emissions testing.

2. What does the OBDII code U1107 mean?

- The code U1107 indicates that there is invalid or missing data for legislated diagnostics in the vehicle's onboard computer system.

3. What are possible causes of OBDII code U1107?

- Possible causes of code U1107 can include issues with the communication network within the vehicle, faulty sensors, wiring problems, or a malfunctioning control module.

4. How can I diagnose OBDII code U1107?

- Diagnosing code U1107 typically involves using a diagnostic scanner to retrieve the specific details of the error code and then performing further tests to identify the root cause of the issue.

5. Can OBDII code U1107 be fixed easily?

- The complexity of fixing code U1107 depends on the underlying cause. Simple issues like loose connections may be easy to fix, while more complicated problems may require professional diagnosis and repair.

6. Are there any DIY repair tips for OBDII code U1107?

- DIY repair tips for code U1107 may include checking and securing all relevant wiring connections, ensuring sensors are functioning correctly, and clearing the error code to see if it returns.

7. Is it safe to continue driving with OBDII code U1107 present?

- It is generally not recommended to continue driving with unresolved OBDII codes, including U1107. Ignoring the issue could potentially lead to further damage or affect the vehicle's performance.

8. How much does it typically cost to repair OBDII code U1107?

- Repair costs for code U1107 can vary greatly depending on the specific cause of the issue, the labor rates of the repair shop, and the need for any replacement parts. It's advisable to get a professional diagnosis for an accurate estimate.

9. Can a faulty OBDII code U1107 affect fuel efficiency?

- Yes, a malfunction triggering code U1107 can potentially affect fuel efficiency if it is related to sensors or systems that impact the engine's performance or fuel management.

10. Will resetting the OBDII code U1107 make it go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing code U1107 is not addressed, the error is likely to return. It's important to diagnose and fix the root cause of the problem.