Hi,
attached is working project for MPC5775E-EVB (S32DS 2.1 and SDK RTM 3.0.3). You just need to use wire to connect pin PTF[20] to LED. So, connect pin 2 of J125 header to some LED on JP6 header.
lukaszadrapa_0-1656070383095.png
Hope it helps.
Regards,
Lukas