U0028 on 2013-2019 Chevrolet Camaro — Vehicle Communication Bus A
1 vehicles · 1 makes · $300-$1,500 repair
Most Reported On
U0028 is an OBD-II diagnostic trouble code meaning “Vehicle Communication Bus A.” A general communication fault on Vehicle Communication Bus 'A' — a manufacturer-assigned data bus designation (which may be CAN or another protocol depending on the vehicle). A module set this code because expected messages on Bus A are missing, corrupted, or the bus is not communicating normally. This code is most commonly reported on 2013-2019 Chevrolet Camaro, with repair costs ranging from $300 to $1,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
This is a network/communication code. A basic engine-code reader will not show it — you need a scanner that reads all modules. These read U0028.
One caveat that applies to every scanner: only powertrain codes are standardised across manufacturers. Body, chassis and network coverage is "enhanced" diagnostics, and how deep it goes varies by make and model year — check your specific vehicle against the tool's coverage list before buying.
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by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
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- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does U0028 mean?
U0028 stands for "Vehicle Communication Bus A." A general communication fault on Vehicle Communication Bus 'A' — a manufacturer-assigned data bus designation (which may be CAN or another protocol depending on the vehicle). A module set this code because expected messages on Bus A are missing, corrupted, or the bus is not communicating normally.
What are the most common causes of U0028?
The most common causes of U0028 are: Open, shorted, or corroded Bus A wiring/connectors, Bad or loose connector at a module on Bus A, Failed control module dragging Bus A down, Poor power or ground to a networked module, Out-of-spec bus termination. The specific cause varies by vehicle.
How much does it cost to fix U0028?
Repair costs for U0028 range from $300 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by U0028?
Au7o has documented U0028 across 1 vehicle models from 1 manufacturers: Chevrolet.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.