P0862

DTC P0862, sometimes indicated as P086200 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the onboard computer system or ancillary outputs causing gear shift module communication circuit high.

This code is caused by a short or open in the gear shift module communication circuit. The most likely cause is a bad wiring connection, but it could also be a fault in the gear shift module itself.
To fix this code, first check the wiring connections for any signs of damage or corrosion. If the connections are good, then replace the gear shift module.

• P0862: Gear Shift Module Communication Circuit High
• P0862: Gear Shift Control Module "A" Communication Circuit High
• P0862: Gear Shift Module Communications Circuit High
• P0862: Gear shift module communication circuit – high input
• P0862 00: Gear shift module communication circuit - high input