Okay so I connected the jumper wire to check my check engine light. And it's the D4 that's blinking. And it gives the code 14 which is Iacv. Is it suppose to be the Cel to blink or am I right should be the D4? Btw I've already changed the Iacv to a used working one and still Cel. I'm gonna check for vacuum leaks though. Just confused For is it about my engine or my transmission code?

 

Okay so I just googled and people say when d4 blinks that's a transmission problem. Code 14 is the Linear (line pressure control) solenoid open or shorted. Does anybody know where this is? Or how to fix this problem?