So i have a honda fit jazz 2004 model that has been really bothering me. I recently changed gear due to jerking and now the new gear shows a blinking D light and the rpm goes really high at low speed. When i noted no improvement i changed its ecu. It performed well for a few kilometers and i am back to the same problem. Blinking D light and very high rpm causing it to rev. Also before i used to do 20+ kilometers per litre now i am at 10km/ltr. I did a diagnosis today and got these codes 70-03(p0700) a/t And 53-01(p1887) vabs vehicle speed signal input inconsistency. Kindly help because i have really spent alot on it. Thanks

 

Most likely a bad Torque Converter Switch in the transmission. However it could also be wiring. https://www.transmissionrepaircostguide.com/p1887/

Your transmission is going into limp mode which normally means 2nd gear because of this issue and that's why you're getting the high rpms.

 

the blinking D light has been sorted out, now the only problem i have is high rpms, high revs.

 

How did you solve the transmission jerking? my d light doesnt blink but it tends to jerk a bit and sometimes it lags going into gear, the only code it shows on my basic scanner is the p1887 the torque converter release switch