transmission limp mode - tcm power circuit p0885
 

hi there

does anyone know what i can do possible fix this error

the car sometimes goes in limp mode stuck in 3rd gear / engine light and and sometimes drives normally....but the engine light pretty much stays on although at times it goes away when the car drives normally





hyundai coupe gen 3.5 2006 model 2.0 engine

A quick googling says this is a TCM relay related thing. Relays can be flaky for a LONG time before failing outright. Troubleshooting from the hip: if it acts up, and you bang on the TCM, does it do right again?