BMW P3022: O2 Sensor Disturbed SPI Communication to WRAF-IC (Bank 1 Sensor 1)
Is your scanner showing BMW P3022?
No worries. We'll show you what it means and how to deal with it.
What Does The BMW P3022 Code Mean?
Engine started and the fault entry trips after the criterion remains present for 2 seconds, battery voltage must be at least 11v, and there is a communications fault between the ECU and the CJ125 (SPI bus) chip.
What Are The Potential Causes Of The BMW P3022 Code?
- Internal HW fault in control module
- Replace control module
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
>>> 72-9402 Engine Control Module - Direct Fit, Sold individually
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Mitchell Repair Information Company, LLC, 2014, Self Diagnosis – Trouble Codes (M57), page 11.
