see fixkick.com see Diagnostic lamp page,the 0D flashing means the 4speed TCM(computer) brain has errors stored, you can place a jumper wire, and get the codes easy.see A/T transmission on same free site above.
Well you can start at the clutch switch or the starter, whichever is easier to get to.You need to know if you have voltage on that circuit between the key switch and the starter solenoid when the clutch pedal is down and the key switch is in the start position.
How do you start it initially? Jump start? If you jump start it then it runs you probably need a new battery. You can go to a parts store to get your engine light checked. If you need further help, I’m available over the phone at https://www.6ya.com/expert/justin_3ae27a9d61d6acd4
The thermostat is stuck closed replace it and the problem is fixed. I would recommend replacing the hose as it has been weakened from the swelling and overheating.