U1559 GMC Code - Body Control Module Lost Communication With Short Range Remote Control Transceiver On LIN Bus
Quick Answer
The U1559 GMC code indicates that the Body Control Module (BCM) has lost communication with the Short Range Remote Control Transceiver on the LIN (Local Interconnect Network) bus. Common causes include Faulty Short Range Remote Control Transceiver, Wiring or connection issues between BCM and transceiver, BCM software glitch. 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, Wiring or connection issues between BCM and transceiver, BCM software glitch.
- 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 U1559 GMC Description
The U1559 GMC code indicates that the Body Control Module (BCM) has lost communication with the Short Range Remote Control Transceiver on the LIN (Local Interconnect Network) bus. The BCM is a crucial component in modern vehicles, responsible for controlling various electrical systems such as lighting, power windows, door locks, and more. The Short Range Remote Control Transceiver is the module that communicates with the key fob to allow for functions like remote locking and unlocking of the vehicle.
Common Causes of U1559 GMC
- Faulty Short Range Remote Control Transceiver
- Wiring or connection issues between BCM and transceiver
- BCM software glitch
- Electrical interference disrupting communication on the LIN bus
Symptoms of U1559 GMC
- Inability to remotely lock or unlock the vehicle
- Malfunctioning keyless entry system
- Loss of functionality for remote start
- Warning light on the dashboard indicating a communication error
How to Fix U1559 GMC
- Diagnose the issue by using a diagnostic scanner to retrieve the specific code and identify the source of the communication problem.
- Inspect the wiring and connections between the BCM and the Short Range Remote Control Transceiver for any damage or corrosion. Repair or replace as needed.
- Test the Short Range Remote Control Transceiver to ensure it is functioning properly. Replace if necessary.
- Clear the U1559 code from the vehicle's computer system using the diagnostic scanner.
- Perform a system relearn procedure to reestablish communication between the BCM and the transceiver.
Cost to Fix U1559 GMC
The typical repair costs for addressing the U1559 GMC code can vary depending on the specific cause of the issue. On average, the repair for this type of communication problem can range from $200 to $500, including parts and labor. However, it's important to note that the actual costs can vary based on factors such as location, vehicle make and model, and the extent of the repair needed. Additionally, diagnostic time and labor rates at auto repair shops can range from $80 to $150 per hour. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for the repair.
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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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