AutoCodes – Generic – U1516

U1516 Code - Body Control Module Lost Communication With Battery Sensor Module On LIN Bus

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Battery Sensor Module, Battery Sensor Module harness is open or shorted, Battery Sensor 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
U1516 indicates Body Control Module Lost Communication With Battery Sensor Module On LIN Bus.
Common causes
Common causes include Faulty Battery Sensor Module, Battery Sensor Module harness is open or shorted, Battery Sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 10,324
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 02, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code U1516 Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Body Control Module (BCM) from the Battery Sensor Module has not been received.
OBDII Code U1516 - Body Control Module Lost Communication With Battery Sensor Module On LIN Bus - AutoCodes.com
U1516 Code - Body Control Module Lost Communication With Battery Sensor Module On LIN Bus

What are the Possible Causes of the DTC U1516?

  • Faulty Battery Sensor Module
  • Battery Sensor Module harness is open or shorted
  • Battery Sensor Module circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC U1516?

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 U1516 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 U1516 code?

Need more information on how to fix the U1516 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1516 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U1516 Buick β€” Body Control Module Lost Communication With Battery Sensor Module On LIN Bus
  • U1516 Cadillac β€” Body Control Module Lost Communication With Battery Sensor Module On LIN Bus
  • U1516 Chevrolet β€” Body Control Module Lost Communication With Battery Sensor Module On LIN Bus
  • U1516 GMC β€” Body Control Module Lost Communication With Battery Sensor Module On LIN Bus
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 U1516 Code

1. What are the common symptoms of OBDII code U1516?

- Common symptoms include issues with the battery sensor, illumination of the battery warning light, and potential communication errors between the body control module and battery sensor module.

2. What causes OBDII code U1516 to occur?

- This code is typically triggered when there is a loss of communication between the body control module and the battery sensor module on the LIN bus, which can be caused by wiring issues, module failures, or software glitches.

3. How can I diagnose the U1516 code?

- Diagnosis involves using a scan tool to retrieve the code, checking for any related codes, inspecting the wiring and connections between the body control module and battery sensor module, and testing the modules themselves for functionality.

4. Can a DIYer repair OBDII code U1516 at home?

- Repairing this code may require advanced diagnostic equipment and knowledge, so it is recommended to consult a professional mechanic to accurately diagnose and repair the issue.

5. Is it safe to continue driving with OBDII code U1516 present?

- It is not recommended to continue driving with this code present, as it can lead to potential issues with the battery sensor and affect the proper functioning of critical vehicle systems.

6. How much does it typically cost to repair OBDII code U1516?

- The cost of repairing this code can vary depending on the underlying cause, but it may involve replacing faulty modules, repairing wiring, or updating software, which can range from a few hundred to a few thousand dollars.

7. Can a dead battery cause OBDII code U1516 to appear?

- A dead or weak battery can potentially contribute to communication issues between the body control module and battery sensor module, leading to the triggering of the U1516 code.

8. Are there any temporary fixes for OBDII code U1516?

- Temporary fixes like disconnecting and reconnecting the battery or clearing the code with a scan tool may temporarily resolve the issue, but it is important to address the root cause for a permanent solution.

9. How long does it typically take to repair OBDII code U1516?

- The repair time for this code can vary depending on the exact cause and complexity of the issue, but it may take a few hours to a full day for a mechanic to diagnose and fix the problem.

10. Can a software update resolve OBDII code U1516?

- In some cases, a software update provided by the vehicle manufacturer can address communication issues between modules and resolve the U1516 code without the need for hardware repairs.

Discuss the causes and fixes for U1516 OBDII Code

Code U1516 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play