My speedometer stopped working on my 97 Honda Accord EX

I am no Honda expert, but a similar problem happened to my ex sister in-laws Ford Taurus. The speed odometer would jump around and it had trouble shifting (automatic transmission). After driving it I changed out the speed odometer sensor on the transmission and it's been fine ever since. I changed out the sensor because if the cars computer cannot tell how fast the car is traveling then fail safes in place go into effect and the computer will do it's best to keep the cars rpm's down based on the speed indicator and not let it shift or shift properly either. If it's getting false speeds then it will shut down the motor when the speed gets to high and allow it to run as the speeds fall (jumping speed odometer needle). It effects the transmission shift points also. It will either shift erratically or not shift out of say 2nd gear, so that the cars engine can't get damaged based on what signal the speed sensor is sending the computer.

Sounds like the sending unit to the speedometer is failing. This causes the speedometer to jump around and confuses the heck out of the electronics that controls your automatic transmission.

Hello,

Were you able to fix your problem? I'm having the same issue with my car, where the Odometer intermittently jumps from 0-48. At times when I start driving the engine stalls and the Odometer starts to act up. The Egine Light is always on. I would appreciate any help.

Remove the speedo cable and examine for damage ie rounding of tip or broken teeth on gear. Otherwise the speedo itself should be taken to a instrument repair shop for repair.

When the D4 light flashes that is an indication of a problem with the transmission. You need a speed sensor located on the transmission make sure to get the electrical part ths will solve BOTH problems.

if both go then its the sensor ,but if car is a 98 then it could be a cable or a speedo cable crive worn out

If all the connection and power supplies to instrument cluster are ok,I suspect that the speedometer or instrument cluster is faulty but before you replace it, make sure the gear inside the transmission that drives the VSS is in good.

yeah it can be replaced try a junkyard first.you might be able to get away cheap.i had the same problem in a 93 accord got mine from junkyard worked great after that

check timming belt,broken.replace , check valves, may be damaged

A green flashing "S" is similar to a check engine light. It is telling you that something in or on your transmission is not functioning correctly, such as the speed sensor or shift control solenoids. If it starts flashing and the speedometer stops working or the transmission shifts weird, take it to a mechanic.