I've got a 95 Mazda Millenia that is flashing 7 codes, and will not shift into the highest gear.. could it be electrical.. A sensor codes are Po400 p1521 p1522 po740 po730 p1173 p1170. several days ago, I got into the car after no problems and it would not go into reverse. I added one qt of Fluid, and reverse returned, but now I have no third gear. The car started to run like **** the last few days.

SOURCE: 1998 honda civic ex coupe

P0700 means that a tranny code does exist...
rate me solved...I answered your request, right?

SOURCE: my hold light is flashing in my 2001 mazda millenia

hold light flashing means you have a transmission fault of some kind, check vehicle speed sensor

SOURCE: An automatic 2002 Mazda Millenia V6 2.5L is stuck in park

When you experience this problem, check to see if your brake lights are coming on. It could be as simple as a brake light switch malfunction. If the brake lights are functioning as the problem is occurring then you could for example have a problem with the shift interlock solenoid.

SOURCE: 01 Mazda Millenia 2.5L check engine light

sounds like its a different sensor causing problem. could be TPS SENSOR OR MAP SENSOR .

SOURCE: po730 gear ratio incorrect po740 tcc circuit

lock up control solenoid A B C is in fault causing your code that is inside the transmission most likely possible need rebuilt or used trans in if solenoid will not cure the problem