P287C code meaning
Transmission Adaptive Values Not Learned
What P287C means
P287C means the transmission controller finds its trim or adaptation data missing, invalid or unfinished. GM's 2023 Corvette dual-clutch TCM runs the check at initialisation, covering end-of-line and online values such as clutch preload, kiss point, fill volume, rod and parking lock positions, and learn routines left incomplete; the code is Type C, without MIL. Honda and Acura describe a trap on the 9-speed automatic of the 2015-16 TLX, 2016 MDX and 2016 Pilot: a replacement TCM arrives without trim data, sets P287C at each ignition cycle and then refuses the teach-in; clearing the code without cycling the key lets the procedure run. Mercedes lists P287C00 for the 8G-DCT as an unfinished first start-up of the transmission unit, and Ford's TR9070 summary as a learn data fault.
P287C at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P287C
- Rough or inconsistent shifts after TCM work
- Learn or teach-in procedure refused
- Transmission warning, often without MIL
Common causes of P287C
- Most likelyReplacement TCM installed without trim or learn data
- PossibleInitial start-up or learn routine not completed
- PossibleStored data rejected after a software update
- Less likelyMemory fault inside the control unit
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
TCM
What each part of P287C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| 7C | The exact fault in that area. |
What to do next
- Note P287C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P287C
What does P287C mean?
P287C means "Transmission Adaptive Values Not Learned". P287C means the transmission controller finds its trim or adaptation data missing, invalid or unfinished. It is a generic code, so it means the same on every make.
Is it safe to drive with P287C?
Drive gently and only to a workshop. With P287C the car can go into limp mode (reduced power) to protect itself.
Will P287C fail an emissions test?
P287C is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P287C to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. This is a job for a workshop.
Will P287C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.