The P0860 trouble code indicates an issue with the gear shift module communication circuit. Here’s what you need to know about this code:
P0860 Gear Shift Module Communication Circuit
Code symptoms P0860.
1. Illumination of the Check Engine Light (CEL) on the dashboard.
2. Possible difficulty shifting gears or failure to shift gears.
3. Transmission may go into limp mode, limiting the vehicle’s speed to prevent further damage.
4. Other related transmission trouble codes may also be present.
Causes of the code P0860.
1. Faulty gear shift module.
2. Damaged or corroded wiring or connectors in the communication circuit.
3. Issues with the transmission control module (TCM).
4. Poor electrical connections or ground faults.
5. Internal transmission problems.
Code Solutions P0860.
1. Replace the gear shift module if it’s found to be faulty.
2. Repair or replace any damaged wiring or connectors in the communication circuit.
3. Ensure proper installation of the gear shift module and secure any wiring harnesses.
4. Reset the fault codes and test drive the vehicle to verify that the issue has been resolved.