P2794: Gear Shift Direction Circuit Low OBD-II Trouble Code

Selecting a gear with your shifter sends a signal to the ECU, which it then interprets to set up the engine and transmission to best match your selected gear. If the computer thinks that your gear choice is not appropriate for what the vehicle is doing (based on data from speed sensors and other components), a P2794 DTC will be triggered.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

How Serious is the Code?

A P2794 diagnostic trouble code means that the computer is using incorrect data to determine things like shift strategy and fuel delivery. This can obviously impact drivability, with transmission problems like unusually harsh shifts, erratic transmission behavior and failed gear engagement.

Symptoms

Symptoms of a P2794 include:

  • Harsh shifts
  • Slipping
  • Erratic shifts
  • Delayed gear changes
  • Failed gear engagement
  • Poor performance
  • Stuck in a gear
  • Limp Mode

Causes

  • Damaged wiring and/or connectors
  • Failed shifter assembly or components
  • Failed/misadjusted transmission range sensor

How to Diagnose the Code?

Many times, a P2794 OBDII trouble code can be caused by a failed shifter assembly or transmission range sensor. It can also be caused by something as simple as a shorted wire or corroded connector.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

What Repairs Will Fix P2794?

  • Repair/replace damaged wiring or connectors
  • Replace shifter assembly
  • Adjust or replace transmission range sensor

Related Codes

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