For my 2000 model 1500, there are 2 sensors. one went bad on mine, located on the "pumkin" of the rear axle. the symptoms were erratic speedometer readings and the idiot light for the antilock brakes came on. seems this sensor data also feeds the computer for the antilock brakes. in actuality, the sensor didn't break. it works on magnetics, and the metal shavings inside the axle fouled it up. had to change the axle oil too.
If you are talking about a wheel speed sensor then the abs light will be on.
No, the computer needs that sensor to know crank timing.
No, I had that same problem with my 1999 Dodge Ram and it did not work till i replaced the speed senser on the trany. Rick
Typically, a bad "speed sensor" will provide an incorrect voltage input to the vehicles computer. That, in hand, would cause a problem in the speed-o-meter reading, as well as shifting problems.
One indication of a bad sensor is when your speedometer bounces around, shakey, or jumpy.
It can cause it to only have second and reverse gears.
The sensors that usually go bad in a Dodge truck are the throttle position sensor, the oxygen sensor, engine light sensor and crank sensor. These malfunctions can be fixed on any Dodge dealership.
The odometer gets its signal from the speed sensor, so if the (tailshaft) speed sensor is bad then the odometer obviously will not work
Usually the ABS and traction control off lights will come on
The speed sensor sends a signal to the speedometer to show the correct speed and it sends a signal to the transmission telling when to shift. If the speed sensor is bad the speedometer will not work and the transmission will not shift correctly.
If only the odometer is not functional, then the cluster is bad. If both odo and speedo are inop then you have a possible speed sensor issue.
What problems will a bad speed sensor cause on a 1999 Nissan Maxima