Chevrolet P1623: PCM PROM Error
Is your scanner showing Chevrolet P1623?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1623: PCM PROM Error
OVERVIEWWhat Does The Chevrolet P1623 Code Mean?
Key on or engine running; and the PCM detected a PROM problem.
How Can You Fix The Chevrolet P1623 Code?
- Check PROM installation and for correct PROM part number
- If the PROM is installed properly, the PCM needs replacing
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
>>> GM Genuine Parts 12633238 Engine Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
