Powertrain
Definition only
Lights the check engine lamp
P288F: Shift Fork "B" Actuator Control Circuit Driver Current/Temperature Too High
Standardized SAE J2012 code · P28xx codes
What does P288F mean?
The output driver for shift fork B actuator reports current or junction temperature above its protection threshold. Stalled actuator or short-circuit fault.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
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
Common causes
- High Short to ground in actuator wiring
- Medium Shift fork mechanically jammed — actuator stalls
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P288F on the same make and model first.
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