AutoCodes – GMC – U1516 GMC

U1516 GMC 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 GMC 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.

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Code Popularity 1,224

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1516 GMC 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 GMC - Body Control Module Lost Communication With Battery Sensor Module On LIN Bus - AutoCodes.com — U1516 GMC Code - Body Control Module Lost Communication With Battery Sensor Module On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1516 GMC?

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 GMC?

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 GMC 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.

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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 GMC Code

1. What are the common symptoms of OBDII code U1516 in a GMC vehicle?

- Common symptoms include illuminated warning lights on the dashboard, loss of communication with the battery sensor module, and potential issues with various electronic control systems.

2. What does the OBDII code U1516 indicating "Body Control Module Lost Communication With Battery Sensor Module On LIN Bus" mean?

- This code indicates a communication problem between the body control module and the battery sensor module over the LIN bus network in the vehicle.

3. What are the possible causes of OBDII code U1516 in a GMC vehicle?

- Possible causes include a faulty body control module, a malfunctioning battery sensor module, wiring issues, loose connections, or a problem in the LIN bus network.

4. How can I diagnose the source of the communication problem related to code U1516 in my GMC vehicle?

- Diagnosing the issue may require using a professional OBDII scanner to pinpoint the exact communication failure between the body control module and the battery sensor module.

5. Can I still drive my GMC vehicle with the U1516 code present?

- It is not recommended to drive the vehicle with the U1516 code present, as it may lead to potential safety hazards or further damage to electronic systems.

6. How can I repair OBDII code U1516 in my GMC vehicle?

- Repairing this code may involve checking and repairing wiring connections, replacing the body control module or battery sensor module if necessary, and ensuring the LIN bus network is functioning correctly.

7. Is it possible to reset the U1516 code in a GMC vehicle without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear until the communication problem between the body control module and battery sensor module is resolved.

8. Can a DIY enthusiast fix the U1516 code issue in a GMC vehicle?

- Depending on your experience and tools available, some DIY enthusiasts may be able to diagnose and repair simple wiring or connection issues related to the U1516 code. However, complex repairs may require professional assistance.

9. How much does it typically cost to repair OBDII code U1516 in a GMC vehicle?

- The cost of repairs can vary depending on the specific cause of the communication issue, but it may range from a few hundred to over a thousand dollars if components need to be replaced.

10. Will the U1516 code disappear on its own after fixing the communication problem in a GMC vehicle?

- Once the underlying communication problem between the body control module and battery sensor module is fixed, the code can be cleared using an OBDII scanner to reset the system.