OBD-II code · Powertrain (generic, extended)
P288F Shift Fork "B" Actuator Control Circuit Driver Current/Temperature Too High
The output driver for shift fork B actuator reports current or junction temperature above its protection threshold. Stalled actuator or short-circuit fault.
Is it safe to drive with P288F?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyShort to ground in actuator wiring
- PossibleShift fork mechanically jammed — actuator stalls
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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Shift Fork Actuator B, Tcm
Related codes
- P288EShift Fork "A" Actuator Control Circuit Driver Current/Temperature Too High
- P288CEngine Disconnect Clutch Actuator Control Circuit Driver Current/Temperature Too High
- P288DShift Fork B Calibration Not Learned
- P2890Cylinder 1 Ion Current Sense Circuit
- P2891Cylinder 1 Ion Current Sense Circuit Range/Performance
- P2892Cylinder 1 Ion Current Sense Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.