Powertrain, generic (extended)

P287C Transmission Adaptive Values Not Learned

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Replacement TCM installed without trim or learn data
Initial start-up or learn routine not completed
Stored data rejected after a software update
Memory fault inside the control unit

Symptoms

  • Rough or inconsistent shifts after TCM work
  • Learn or teach-in procedure refused
  • Transmission warning, often without MIL

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–400
Time0.5–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

tcm

Related codes

P287BP288DP0700P0613

References: gsi.ext.gm.com, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.