C0550 "Electronic Control Unit (ECU) Performance" MH ($29) "Electronic Brake Control Module (EBCM)"
"Service braking system" message on the DIC, abs + brake lights on the dash. PCM went reduced power, only 40% throttle per EFI.
Never saw this code or message/lights before, but truck has gone REP before with no codes set. First time I got to scan it.
Dealer? Warranty up in 5k miles. Have stock pcm for this. Code reset immediately after clearing and restarting. SO it should do the same if I swap to factory pcm? I want the dealer to see this code if they will fix it.