U1347 GMC Code - Engine Control Module LIN Bus 3
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 Control Module Setting the Diagnostic Trouble Code (DTC), Control Module harness is open or shorted, Control 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
- U1347 GMC indicates Engine Control Module LIN Bus 3.
- Common causes
- Common causes include Faulty Control Module Setting the Diagnostic Trouble Code (DTC), Control Module harness is open or shorted, Control 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.
Code U1347 GMC Description
What are the Possible Causes of the DTC U1347 GMC?
- Faulty Control Module Setting the Diagnostic Trouble Code (DTC)
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC U1347 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 U1347 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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Frequently Asked Questions about U1347 GMC Code
1. What are common symptoms of OBDII code U1347 in a GMC related to the Engine Control Module LIN Bus 3?
- Common symptoms include issues with engine starting, rough idling, poor acceleration, and potential communication errors with other vehicle modules.
2. What are some possible causes of OBDII code U1347 GMC indicating a problem with the Engine Control Module LIN Bus 3?
- Potential causes include damaged wiring or connectors in the LIN bus circuit, a faulty Engine Control Module (ECM), or issues with other control modules connected to the LIN bus network.
3. How can I diagnose OBDII code U1347 in my GMC related to the Engine Control Module LIN Bus 3?
- Diagnosing this code typically involves using a scan tool to check for communication errors between the ECM and other modules, inspecting the LIN bus wiring for damage, and testing the ECM for proper functionality.
4. Can I still drive my GMC if the OBDII code U1347 related to the Engine Control Module LIN Bus 3 is present?
- It is generally not recommended to drive the vehicle with this code present, as it can lead to potential performance issues and further damage to the vehicle's electronic systems.
5. Are there any DIY repair tips for fixing OBDII code U1347 GMC indicating a problem with the Engine Control Module LIN Bus 3?
- DIY repair tips may include checking and repairing damaged wiring, ensuring proper connections in the LIN bus network, and resetting the ECM to see if the code clears.
6. How serious is OBDII code U1347 in a GMC related to the Engine Control Module LIN Bus 3?
- This code should be addressed promptly as it can affect the vehicle's performance and overall functionality. Ignoring the issue may lead to more severe electrical problems.
7. Can a damaged LIN bus affect other systems in the vehicle besides the Engine Control Module?
- Yes, a damaged LIN bus can potentially affect communication with other control modules in the vehicle, leading to issues with various systems such as transmission control, ABS, or airbag systems.
8. Will resetting the ECM clear the OBDII code U1347 related to the Engine Control Module LIN Bus 3?
- Resetting the ECM may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear after driving the vehicle for some time.
9. Is it necessary to visit a dealership or mechanic to diagnose and repair OBDII code U1347 GMC involving the Engine Control Module LIN Bus 3?
- While advanced diagnostics may require specialized tools, some basic checks like inspecting wiring can be done by DIY enthusiasts. However, for a thorough diagnosis and proper repair, it's advisable to consult a professional mechanic.
10. How much can I expect to pay for repairing OBDII code U1347 related to the Engine Control Module LIN Bus 3 in a GMC?
- Repair costs can vary depending on the exact cause of the issue. It is recommended to get a diagnostic done to determine the specific problem and associated repair costs.
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