What happens to the speed sensor on a Pontiac Montana?
The vehicle speed sensor on your Pontiac Montana van transmits electrical pulses that convert to a speed recording for your speedometer, cruise control and anti-lock brake system. If the vehicle speed sensor fails on your Montana, your speedometer may be inaccurate and your cruise control and ABS may fail.
Why is the odometer and Speedo not working?
Neither the Speedo, odometer, nor cruise controls are working. I changed out the inst. cluster and the vss. It does not have a mechanical speed sensor, electric magnetic. I originally thought it was the cluster so I changed that, no good. A few weeks later the service engine light came on, checked for codes and got 24. I than changed the vss.
How to check the odometer on a GM Truck?
OK, you need to check the signal first at the VSS, then at the PCM. The VSS is a pulse generator which produces an analog A/C signal. Use a volt meter set to A/C voltage. Unplug the sensor and hook up the meter to the 2 terminals on the sensor.
Why is there no speedo on my 88-91 truck?
But on the 88-91 trucks the speedo is controlled by the “BRAKE” fuse!! I noticed people riding my tail lately and found no brake lights. Fuse was blown. If you have a trailer wiring or the brake switch goes bad (my case) the blown brake fuse will kill the brake light, cruise, brake unit, AND the speedo servos.
The vehicle speed sensor on your Pontiac Montana van transmits electrical pulses that convert to a speed recording for your speedometer, cruise control and anti-lock brake system. If the vehicle speed sensor fails on your Montana, your speedometer may be inaccurate and your cruise control and ABS may fail.
How do you replace a speed sensor on a Pontiac Van?
Buy a new sensor from a Pontiac dealership or auto parts store. Use a lug wrench to loosen the lug nuts on the passenger side tire. Do not remove them yet. Raise the front of the van with a jack and secure it on a set of jack stands. Remove the lug nuts and the passenger side tire on the front of the van. Locate the vehicle speed sensor.
Where can I buy a new speed sensor?
Buy a new sensor from a Pontiac dealership or auto parts store. Use a lug wrench to loosen the lug nuts on the passenger side tire. Do not remove them yet. Raise the front of the van with a jack and secure it on a set of jack stands.
Where can I find the transmission speed sensor?
Drive the vehicle around the block to see if the speedometer will operate. Step 2: Check under the vehicle. When returning from the test drive, grab a flashlight and go under the vehicle. Look for the transmission speed sensor and see if the harness is attached and secured. Step 1: Park your vehicle on a flat, hard surface.
Buy a new sensor from a Pontiac dealership or auto parts store. Use a lug wrench to loosen the lug nuts on the passenger side tire. Do not remove them yet. Raise the front of the van with a jack and secure it on a set of jack stands. Remove the lug nuts and the passenger side tire on the front of the van. Locate the vehicle speed sensor.
What causes a transmission speed sensor to fail?
Sometimes, the sensor will fail if it is submerged in a different type of oil than what is recommended due to viscosity. If you operate a vehicle and the speedometer does not register anything, or if the speedometer begins to move after the vehicle is in motion, then the transmission speed sensor has failed.
Where are the traction control lights on a Pontiac Montana?
Pontiac Montana Questions – Servcies Traction Control System, ABS and TCS OFF lit up on Dashboard – CarGurus.ca Service traction control system light comes on at startup along with the ABS and TRAC OFF lights . Servcies traction control system goes off and other two ABS and TRAC OFF stay lit when I drive.
Why does my Pontiac Montana have an AWD disabled light?
I have a 2002 Pontiac Montana that would turn the ABS light and Awd disabled light on after i hit either 40 MPH or 80. it was also kicking the pump for the ABS on for no reason. I had just done new breaks and rotors and thought that Maby i hit the sensor connector but all was fine.
How does a wheel speed sensor work in a car?
Even some vehicles without anti-lock brake systems (ABS) will use wheel speed sensors as the vehicle speed input for the engine control module and transmission control module. The traditional wheel speed sensor consists of a tone wheel (sometimes called a trigger wheel) plus a magnetic pickup.
How can I test my ABS wheel speed sensor?
You can also test wheel speed sensor with a digital oscilloscope. Connect its leads to the sensor terminals or at the ABS module and observe the waveforms as you turn the wheels. Any distorted signals indicate a problem with the tone wheel and/or sensor. Sealed hubs with integral wheel speed sensors and tone rings have become more common.
Buy a new sensor from a Pontiac dealership or auto parts store. Use a lug wrench to loosen the lug nuts on the passenger side tire. Do not remove them yet. Raise the front of the van with a jack and secure it on a set of jack stands.