I change my speed sensor the connector looks good but no speedometer not working 318 dakota

There's a good chance the speedometer is bad, pay special attention to the connector as you remove the cluster I've seen wher the top of the connector wasn't snapped in. There are repair shops that fix speedometers. I hope this helps. Take care.

1 st thing I would do is hook up a scanner, bring up the data & find the vehicle speed on the sensor, then drive the vehicle, if the scanner registers the speed, then that tells you the speed sensor is working. if not your speed sensor is N/G.
If you do have a speed reading on your scanner, I would check all the fuses, you may have blown one when working on the cluster, especially if you didn't disconnect the negative battery, before you started. other than that, you may have disconnected a connector while you had it out. Hope this helps

i believe it has a vehicle speed sensor in the rear diff that is probably your problem as the sensor you replaced in the transmission was probably the output shaft speed sensor

Possible loose connector at transmission,

could be a bad speedometer head

Hi there:

This is a common problem on Mazda, it is usually caused by a faulty vehicle speed sensor. I would take a look at the wiring and connector to the vehicle speed sensor. If the wiring and connector look to be in good condition, replace the vehicle speed sensor. The sensor is on the transmission near the cv axle. It is held in by one bolt.
VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION Disconnect the negative battery cable.Disconnect the VSS connector.

Remove the VSS.Apply ATF to a new O-ring and install it on a new VSS.Install the VSS. Tightening torque7.9 - 10.7 Nm (80 - 110 kgf.cm, 69.5 - 95.4 inch lbs.) Connect the VSS connector.Connect the negative battery cable.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

On my 95 jeep wrangler, the vehicle speed sensor is on the end of the transfer case. I replaced mine and it still didn\'t work. So I put new butt connectors on the wires and that was why my speedometer wasn\'t working ... so you need to be careful when crimping the wires without crimping the bells at the ends of the connectors.

it could be the cluster but you have a im put and out put sensor on the transmission that controls the speedo

IT SOUNDS LIKE YOU HAVE BROKEN WIRE LEADING TO SPEED SENSOR IN REAR DIFF..CHECK FOR ANY SPOTS IN HARNESS WHERE IT LOOKS OUT OF PLACE OR RUBBING ON SOMETHING..ALSO CHECK FOR SPREAD CONNECTIONS IN PLUG AT SENSOR..CHECK ALL FUSES RELATED TO ABS SYSTEM IN UNDERHOOD FUSE/RELAY CENTER

OVERDRIVE ENGAGEMENT IS TIED TO THE SPEED SENSOR SIGNAL, THE SYSTEM WILL NOT GO INTO OD UNTIL THE CAR REACHES A CERTAIN SPEED, IN MOST CASES AROUND 35-40 MPH, THE SPEED SENSOR SIGNAL TELLS THE ECU WHEN THE CORRECT SPEED HAS BEEN REACHED.