Powertrain
generic / SAE
P2794
Gear Shift Direction Circuit Low
Voltage on the gear-shift direction line is below the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 94
Possible causes
- Signal wire shorted to ground high
- Internal short in sensor medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 100–700 €
- Estimated time: 0.8–2.5 h
- Component: shift direction sensor
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012