How to check the odometer on a GM Truck?
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.
Where is the VSS sensor on a GM Truck?
To change the ratio on an 89 a reduction box was used on the speedometer cable at the trans or transfer case. I believe 1992 was the first year GM used a DRAC in the trucks. The 89 still used a speedo cable and the vss sensor was located in the speedo head.
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.
What is the fault code for VSS inoperative speedometer?
ODB-II Fault code for VSS Inoperative Speedometer (stays at zero) Unresponsive speedometer (sits at zero then jumps to 15) Inoperative Cruise Control
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.
What to do if your odometer is not working?
If only your odometer is not working, then the dash cluster may be the culprit. Should you need to replace it, here are the instructions for replacing the dash cluster. Start by parking your vehicle on a level surface and setting the parking brake. * Turn the ignition to the ‘on’ position.
How to check the 24 code on a GM Truck?
Im still getting the 24 code 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. Now spin the rear wheels.
To change the ratio on an 89 a reduction box was used on the speedometer cable at the trans or transfer case. I believe 1992 was the first year GM used a DRAC in the trucks. The 89 still used a speedo cable and the vss sensor was located in the speedo head.
Im still getting the 24 code 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. Now spin the rear wheels.
If only your odometer is not working, then the dash cluster may be the culprit. Should you need to replace it, here are the instructions for replacing the dash cluster. Start by parking your vehicle on a level surface and setting the parking brake. * Turn the ignition to the ‘on’ position.
Where are the fuses located in a GMC Sierra?
The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle. Lift the cover to access the fuse block. A fuse puller is available in the left instrument panel fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
