P1875 on 2009-2011 Kia Borrego — 4WD Low Switch Circuit (GM)
1 vehicles · 1 makes · $200-$3,000 repair
Most Reported On
P1875 is an OBD-II diagnostic trouble code meaning “4WD Low Switch Circuit (GM).” P1875 is a GM-specific code indicating a fault in the 4WD low switch circuit, which is monitored by the transmission/transfer case or vehicle control module. This switch tells the control module when four-wheel-drive low range is selected so the system can adjust transmission and transfer-case behavior. The code sets when the module sees a continuous open, short to ground, or short to power in that circuit. You may have trouble engaging or disengaging 4WD low and may see a 4WD or service warning light. This code is most commonly reported on 2009-2011 Kia Borrego, with repair costs ranging from $200 to $3,000.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P1875, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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- I/M readiness status
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BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
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- Oil reset, EPB, BMS, TPMS, injector coding
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FAQ
What does P1875 mean?
P1875 stands for "4WD Low Switch Circuit (GM)." P1875 is a GM-specific code indicating a fault in the 4WD low switch circuit, which is monitored by the transmission/transfer case or vehicle control module. This switch tells the control module when four-wheel-drive low range is selected so the system can adjust transmission and transfer-case behavior. The code sets when the module sees a continuous open, short to ground, or short to power in that circuit. You may have trouble engaging or disengaging 4WD low and may see a 4WD or service warning light.
What are the most common causes of P1875?
The most common causes of P1875 are: Faulty 4WD low range switch, Open or shorted wiring in the 4WD low switch circuit, Corroded or loose connector at the switch or transfer case, Damaged wiring harness near the transfer case, Faulty transfer case control / encoder motor, Poor ground or chafed wire, Failed transfer case or transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P1875?
Repair costs for P1875 range from $200 to $3,000, depending on the vehicle and root cause.
Which vehicles are affected by P1875?
Au7o has documented P1875 across 1 vehicle models from 1 manufacturers: Kia.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.