Powertrain
generic / SAE
P0909
Gate Select Control Error
The TCM detects that the gate select actuator does not reach the commanded position within tolerance. Mechanical bind, weak actuator, or sensor offset.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number9 / 09
Possible causes
- Selector mechanism binding high
- Actuator force degraded medium
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: hard
- DIY: shop recommended
- Estimated cost: 400–2000 €
- Estimated time: 2–7 h
- Component: gate select actuator
- Component: gate select position sensor
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012