GMC P1875: 4WD Low Switch Circuit Fault (4L60-E, 4L65-E, 4L80-E)
Is your scanner showing GMC P1875?
No worries. We'll show you what it means and how to deal with it.
What Does The GMC P1875 Code Mean?
Engine started, vehicle driven to a speed over 7 mph for 5 seconds, gear range is D4, Fuel Cutoff not active, TP angle from 17-50%.
What Are The Potential Causes Of The GMC P1875 Code?
- 4WD low switch signal circuit is open, shorted to ground or B+
- 4WD low switch is damaged or has failed
- PCM has failed
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
>>> 4WD Wheel Drive Switch
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Technical Service Bulletin PIP5094 for P1875 – General Motors
