What causes Speedo to stop working?

What causes Speedo to stop working?

What causes Speedo to stop working?

The most common causes of a speedometer that stopped working include are a faulty speed sensor, a broken gear on the speedometer, damaged wiring, or a faulty engine control unit.

How do you fix a speedometer needle not moving?

Speedometer Not Working: Jerking Or Bouncing Of Speedometer The cause is almost always bad wiring if there is a cable system, or alternatively, a bad speed sensor. For the most part, a replacement of the wiring solves the issue. If that doesn’t work, the sensors must be re-calibrated.

Where is the speed sensor located on a 2002 Dodge Caravan?

The speed sensor is found on the right side of the transmission on the 2002 Grand Caravan. The sensor has a black electrical connector and a red locking tab.

Where is the speed sensor located on a 2000 Dodge Caravan?

The speed sensor is found on the right side of the transmission, in the front of the vehicle. The sensor is small component sticking out of the transmission with a wire connector coming out from it. The Caravan repair manual will have a detailed diagram, if needed.

Where is the speed sensor located on a 2003 Dodge Caravan?

Location. The speed sensor on a Doge Caravan can be found under the hood on the drivers side, mounted on the transmission.

Why is the speedometer on my Dodge Caravan not working?

If your Dodge Caravan’s speedometer is not working, it’s usually going to be caused by an issue with the VSS (vehicle speed sensor), or a bad ECU. The VSS is usually not very expensive, and they are not that difficult to replace.

What does the VSS sensor do on a Dodge Caravan?

The VSS is one part of a system of sensors that helps keep you safe (traction control, ABS, cruise control). A modern vehicle’s speedometer takes the input from the Vehicle Speed Sensor and sends that data to the ECU. The ECU is programmed with your Caravan’s gear ratios and stock tire height.

What does it mean when the speedometer bounces around?

When the vehicle is traveling at less than 5 MPH or completely stopped, The speedometer will bounce around and indicate non-zero speeds.

Why is the speedometer louder at high speeds?

My hypothesis (which turned out correct) was that, at high speeds the signal received by the speedometer was loud enough to overpower the background noise. However, at low speeds the quieter (electrically) signal sent by the speed sensor was less prominent and was drowned out by the background noise.