Subaru U1221: CAN-HS ECM No-Receive Data
Is your scanner showing Subaru U1221?
No worries. We'll show you what it means and how to deal with it.
Subaru U1221: CAN-HS ECM No-Receive Data
OVERVIEWWhat Does The Subaru U1221 Code Mean?
Not received error data from ECM.
What Are The Potential Causes Of The Subaru U1221 Code?
- Wiring harness used by CAN communcation line needs repair.
- Defective ECM.
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
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Subaru Body Integrated Unit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Diagnostic Procedure with Diagnostic Trouble Code for U1221 – 2008 Impreza WRX, pages 57-58.
