GMC U1128: Lost Communications With Radio
Is your scanner showing GMC U1128?
No worries. We'll show you what it means and how to deal with it.
GMC U1128: Lost Communications With Radio
OVERVIEWWhat Does The GMC U1128 Code Mean?
Condition for setting the codes: Battery Voltage is 9-16 volts. DTCs U1300, U1301, or U1305 are not current. The vehicle power mode requires serial data communication to occur.
What Are The Potential Causes Of The GMC U1128 Code?
- An intermittent open between a module and a star connector
- A poor connection at a module or a star connector
- An intermittent open in a star connector
- An open voltage or ground circuit
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> KAIWEETS Digital Multimeter
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GMC U1128, DTCDECODE.
