2017-10-10
Test and replace the faulty gear shift module, if necessary
Inspect and repair the gear shift module communication circuit for any issues, such as damaged wires or connectors
Ensure the connectors in the gear shift module system are securely connected and free from corrosion
Test and replace the faulty transmission control module (TCM), if necessary
Inspect for any intermittent low voltage conditions in the gear shift module communication circuit and repair as needed
The fault code P0861 indicates a low voltage condition in the gear shift module communication circuit. This code typically points to a problem with the electrical circuitry or connection associated with the gear shift module, which is responsible for transmitting information about the gear position to the vehicle's control system.
Gear Shift Module: Gear shift module controls the gear shifting system. This car's module has a problem which may cause difficulty in shifting gears
Faulty gear shift module
Wiring or connection problems in the gear shift module communication circuit
Loose or corroded connectors in the gear shift module system
Faulty transmission control module (TCM)
Intermittent low voltage condition in the gear shift module communication circuit