AutoCodes – Generic – U1116

U1116 Code - Invalid Or Missing Data For Electrical Energy Management

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: U1116 indicates Invalid Or Missing Data For Electrical Energy Management.
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.

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Code Popularity 12,955

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
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Code U1116 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 U1116 - Invalid Or Missing Data For Electrical Energy Management - AutoCodes.com — U1116 Code - Invalid Or Missing Data For Electrical Energy Management

What does this mean?

What are the Possible Causes of the DTC U1116?

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

How to Fix the DTC U1116?

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 U1116 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 U1116 code?

Need more information on how to fix the U1116 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1116 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 U1116 Code

1. What are common symptoms of OBDII code U1116?

- Common symptoms include illuminated dashboard warning lights, issues with electrical components, and potential battery draining.

2. What causes the OBDII code U1116 to appear?

- The code U1116 is usually triggered by communication errors between various control modules in the vehicle related to electrical energy management.

3. How can I diagnose the OBDII code U1116?

- Diagnosis of code U1116 typically involves using a professional OBDII scanner to read the fault codes and investigate communication issues between control modules.

4. Can a weak battery cause the OBDII code U1116 to be triggered?

- Yes, a weak or faulty battery can contribute to the appearance of code U1116 due to compromised electrical energy management.

5. Are there any DIY repair tips for resolving code U1116?

- DIY repair tips include checking and tightening battery connections, ensuring proper voltage levels, and addressing any electrical issues in the vehicle.

6. Is it safe to continue driving with the OBDII code U1116 present?

- It is not recommended to drive with the code U1116 present, as it can lead to further electrical problems and potential issues with critical vehicle systems.

7. Can a professional mechanic help fix the OBDII code U1116?

- Yes, a professional mechanic can diagnose the exact cause of code U1116 and provide the necessary repairs to solve the issue effectively.

8. What components are commonly involved in electrical energy management systems?

- Components such as the battery, alternator, control modules, wiring harnesses, and sensors play vital roles in electrical energy management systems.

9. How much does it typically cost to repair OBDII code U1116?

- The cost of repairing code U1116 can vary depending on the root cause of the issue, but it may range from a simple fix like tightening connections to more complex repairs involving control modules.

10. Can resetting the OBDII codes clear the U1116 code temporarily?

- Resetting the OBDII codes may temporarily clear the U1116 code, but it is crucial to address the underlying issue to prevent the code from reappearing.

1. What are the common symptoms of OBDII code U1116?

The common symptoms of OBDII code U1116 include issues with the vehicle's electrical system, such as problems with battery charging, irregular voltage levels, and malfunctioning accessories.

2. What can cause the OBDII code U1116 to appear?

The OBDII code U1116, which indicates invalid or missing data for electrical energy management, can be triggered by a faulty battery, alternator, wiring issues, or issues with the control modules.