AutoCodes – GMC – U1559 GMC

U1559 GMC Code - Body Control Module Lost Communication With Short Range Remote Control Transceiver 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 Short Range Remote Control Transceiver, Short Range Remote Control Transceiver harness is open or shorted, Short Range Remote Control Transceiver 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
U1559 GMC indicates Body Control Module Lost Communication With Short Range Remote Control Transceiver On LIN Bus.
Common causes
Common causes include Faulty Short Range Remote Control Transceiver, Short Range Remote Control Transceiver harness is open or shorted, Short Range Remote Control Transceiver 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 702
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 04, 2020
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Code U1559 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 Short Range Remote Control Transceiver has not been received.
OBDII Code U1559 GMC - Body Control Module Lost Communication With Short Range Remote Control Transceiver On LIN Bus - AutoCodes.com
U1559 GMC Code - Body Control Module Lost Communication With Short Range Remote Control Transceiver On LIN Bus

What are the Possible Causes of the DTC U1559 GMC?

  • Faulty Short Range Remote Control Transceiver
  • Short Range Remote Control Transceiver harness is open or shorted
  • Short Range Remote Control Transceiver circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC U1559 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 U1559 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.

Need more information about the U1559 GMC code?

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Need Help with the Code?

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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 U1559 GMC Code

1. What are common symptoms of OBDII code U1559 in a GMC vehicle?

- Common symptoms include issues with keyless entry, remote start functionality, power door locks, and other features controlled by the body control module.

2. What could cause the Body Control Module to lose communication with the Short Range Remote Control Transceiver on the LIN bus?

- Possible causes include wiring issues, a faulty transceiver, a malfunctioning body control module, or a communication network problem.

3. How can I diagnose the U1559 trouble code in my GMC?

- Diagnosis typically involves checking the wiring connections, inspecting the transceiver for damage, testing the LIN bus communication, and using a diagnostic scan tool to communicate with the body control module.

4. Is it safe to continue driving with the U1559 code present?

- While the vehicle may still be operable, it's recommended to address the issue promptly to prevent further complications with the remote control functionality and other related systems.

5. Can I repair the U1559 code on my own, or should I seek professional help?

- Depending on your automotive repair skills and access to tools, you may be able to address the issue yourself by checking for loose connections or replacing the transceiver. If in doubt, it's best to consult a professional technician.

6. Will resetting the trouble codes make the U1559 code disappear permanently?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the lost communication is not resolved, the code is likely to reappear after some time.

7. Are there any preventive measures to avoid encountering the U1559 code in the future?

- Regularly checking and maintaining the wiring connections, ensuring the transceiver is securely mounted, and addressing any issues with the LIN bus network promptly can help prevent the recurrence of the U1559 trouble code.

8. Can extreme weather conditions or environmental factors contribute to the U1559 code appearing?

- Yes, extreme temperatures, moisture, or other environmental factors can potentially impact the communication between the body control module and the transceiver, leading to the U1559 trouble code.

9. What is the typical cost to repair the U1559 code in a GMC vehicle?

- The cost of repair can vary depending on the specific cause of the issue. It could range from a simple fix like reattaching a loose wire to replacing the transceiver or the body control module, potentially costing a few hundred dollars to over a thousand dollars.

10. How long does it usually take to repair the U1559 code in a GMC vehicle?

- The repair time can vary based on the complexity of the issue and the expertise of the technician. Simple fixes may take less than an hour, while more involved repairs could require several hours or even multiple visits to a repair shop.

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