Any check engine light on?
What have you tried already?
Okay I will need you to pull the codes for me so that I may further assist you.
If this is the diagnostic terminal under your driver side dash then following the instructions on how to pull the engine codes.
1. connect a jumper wire from terminal A to terminal B
2. turn the ignition on but do not start vehicle
3. watch your check engine light and it should begin to flash
4. After code 12 flashes 3 times it will begin to flash any stored codes 3 times each. count flashes like this. flash, pause, flash, flash is 12, flash flash pause flash flash is code 22 and so on. it will flash every code 3 times each. It shows codes from lowest to highest number order.
Once you retrieve these codes please let me know what code numbers you got.