U1280 Code - Communication Bus Line Error
Quick Answer
The Diagnostic Trouble Code (DTC) sets when there is a Communication Bus Line Error between any of the following control units: - Passenger's MICU - Gauge Control Unit - Power Control Unit - Keyless Access Control Unit - Remote Slot Control Unit - Immobilizer-keyless Control Unit - Climate Control Unit - Power Seat Control Unit - Handsfreelink Control Unit - Acuralink Control Unit - Audio Unit - Audio-Navigation Unit - Power Tailgate Control - BSI Control Unit - Driver's MICU Common causes include Check battery charge, Faulty Control Unit, Control Unit harness is open or shorted. 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
- U1280 indicates Communication Bus Line Error.
- Common causes
- Common causes include Check battery charge, Faulty Control Unit, Control Unit harness is open or shorted.
- 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 U1280 Description
- Passenger's MICU
- Gauge Control Unit
- Power Control Unit
- Keyless Access Control Unit
- Remote Slot Control Unit
- Immobilizer-keyless Control Unit
- Climate Control Unit
- Power Seat Control Unit
- Handsfreelink Control Unit
- Acuralink Control Unit
- Audio Unit
- Audio-Navigation Unit
- Power Tailgate Control
- BSI Control Unit
- Driver's MICU
What are the Possible Causes of the DTC U1280?
- Check battery charge
- Faulty Control Unit
- Control Unit harness is open or shorted
- Control Unit circuit poor electrical connection
- Faulty Multiplex Integrated Control Unit (MICU)
How to Fix the DTC U1280?
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 U1280 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 U1280 code?
Need more information on how to fix the U1280 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U1280 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U1280 Acura — Communication Bus Line Error
- U1280 Honda — Communication Bus Line Error
Frequently Asked Questions about U1280 Code
1. What are the common symptoms of OBDII code U1280 (Communication Bus Line Error)?
- Common symptoms include intermittent or complete loss of communication with various vehicle control modules, dashboard warning lights illuminated, and issues with vehicle systems like power windows, radio, or climate control.
2. What are the possible causes of OBDII code U1280?
- Potential causes of U1280 include wiring or connection issues in the communication bus line, faulty control modules, corroded connectors, water damage, or a short circuit in the network.
3. How can I diagnose OBDII code U1280?
- Diagnosis involves using an OBDII scanner to retrieve the code, checking for other related codes, inspecting the communication bus wiring, connectors, and modules, and performing a thorough visual inspection for any signs of damage or corrosion.
4. Can a DIYer repair OBDII code U1280 at home?
- While some basic checks like inspecting wiring and connectors can be done at home, diagnosing and repairing U1280 often requires specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.
5. What are some tips for repairing OBDII code U1280?
- Repair tips include ensuring all connections are secure, repairing any damaged wiring or connectors, checking for water intrusion, and clearing the code with a scanner after making any necessary repairs.
6. Can OBDII code U1280 cause permanent damage to the vehicle?
- U1280 itself does not cause permanent damage, but the underlying communication issues between control modules can lead to malfunctions in various vehicle systems if left unresolved. It is important to address the code promptly to prevent further issues.
7. How much does it typically cost to repair OBDII code U1280?
- The cost of repairing U1280 can vary depending on the specific cause of the issue, labor rates in your area, and the need for replacement parts. It is advisable to obtain quotes from multiple mechanics to compare prices.
8. Is it safe to continue driving with OBDII code U1280 present?
- While the vehicle may still be operable with U1280 present, it is not recommended to ignore the code. Continued driving with communication bus line errors can lead to unpredictable behavior of vehicle systems and potential safety hazards.
9. Can extreme weather conditions contribute to triggering OBDII code U1280?
- Yes, extreme weather conditions like heavy rain or extreme temperatures can potentially exacerbate existing communication bus line issues, leading to the triggering of U1280.
10. How long does it typically take to repair OBDII code U1280?
- The repair time for U1280 can vary depending on the complexity of the issue, availability of parts, and the mechanic's workload. In some cases, the repair can be completed within a few hours, while more complex issues may take longer to diagnose and fix.
Discuss the causes and fixes for U1280 OBDII Code
Code U1280 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
