Is the speed sensor connected to the control unit?
The speed sensor is also directly connected to the “control unit”. While I have never taken one of these clusters apart, I would replace the bad VSS before I replaced the cluster. You can check the sensor with an AC volt meter.
Can a bad instrument cluster affect the ECM?
Hook up the meter to the sensor and spin the sensor by hand. You should see a response on the meter. Since the sensor connects to the cluster, a bad cluster could affect the speed signal to the ECM and trip the code. So yes, the speed sensor code and the gauge issues could very well be related.
What are the two sensors that monitor transmission speed?
The first is known as the input shaft speed (ISS) sensor. As described, this sensor is used to monitor the speed of the transmission’ input shaft. The other sensor is the output shaft speed (OSS) sensor. If either of these two sensors falls out of alignment or experiences electrical issues, it impacts the operation of the entire transmission.
Is there a problem with the speed sensor?
To determine that truck does, in fact, have an issue with the speed sensor, I drove the truck about 30 feet to see if the ECU would give me a VSS reading… which it did not. So that leaves me with another question: Is it likely that this problem is in any way related to the other failing components of the instrument cluster?
The speed sensor is also directly connected to the “control unit”. While I have never taken one of these clusters apart, I would replace the bad VSS before I replaced the cluster. You can check the sensor with an AC volt meter.
What does an instrument cluster on a car do?
An instrument clusteris the collection of gauges, dials and lights right above the steering wheel that tell you what’s going on in your vehicle. Generally, your car’s instrument clusterwill last the lifetime of the car and you’ll never have a problem with any of them.
Hook up the meter to the sensor and spin the sensor by hand. You should see a response on the meter. Since the sensor connects to the cluster, a bad cluster could affect the speed signal to the ECM and trip the code. So yes, the speed sensor code and the gauge issues could very well be related.
To determine that truck does, in fact, have an issue with the speed sensor, I drove the truck about 30 feet to see if the ECU would give me a VSS reading… which it did not. So that leaves me with another question: Is it likely that this problem is in any way related to the other failing components of the instrument cluster?