Chevy Code P1875

by Louise Jones

Modern cars have on-board diagnostic computers. The computers store and transmit codes relating to faults sensed by the on-board diagnostic system. Chevy Code P1875 relates to the four-wheel drive low-switch.

Code P1875

In Chevrolet vehicles, code P1875 is given the description "4WD Low Switch Circuit Electrical." A fault has been sensed in the electrical switch circuit for the low setting of the four-wheel drive when this code appears.

Four-Fheel Drive Low

Four-wheel drive low is used when towing a heavy trailer or driving off-road. It is helpful when low-speeds with high torque are useful.

Four-Wheel Drive Low Switch-Circuit Electrical

The problem sensed is within an electrical circuit that connects the Vehicle Control Module to the Transfer Case Control Module, specifically the four-wheel drive low-input of the TCCM. It is possible to test and fix the circuit with the appropriate Chevrolet wiring diagram.

About the Author

Louise Jones has been a technical writer since 2006 and is the director of a technical writing company, providing literature for U.K. construction firms such as MITIE and Balfour Beatty. Her work also appears on various websites, focusing on business and technical articles. Jones has a postgraduate certificate in education and has been trained in information technology. She studied English at Cambridge University.

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