What is a digital ratio adapter controller?
What is a digital ratio adapter controller?
The Digital Ratio Adapter Controller (aka. DRAC, and similar to the Vehicle Speed Sensor Buffer – VSSB) found in many General Motors vehicles from 1992+ are a good solution for obtaining a clean 5 Volt square wave signal from a VSS sensor in a noisy environment. The DRAC is contained in a small white plastic case.
Where is the VSSb module location?
It is usually located near the ECM, or behind the glove compartment, or under the dashboard. In the same fashion if gear ratios or tire sizes are changed, the module may be quickly swapped or reprogrammed for the correct ratios.
What is a gm DRAC?
DRAC is Digital Ratio Adapter Controller (TBI DRAC, GM DRAC, Buffer Module) VSSB is Vehicle Speed Sensor Buffer (TBI VSSB, GM VSSB, Speedometer Buffer) Replacement Modules for failed OE applications are readily available and in stock from UD Module.
What kind of brake controller do I need for MY 2002 Chevy Silverado?
http://www.etrailer.com/Accessories-a… Today on our 2002 Chevrolet Silverado we’ll be installing the Tekonsha Prodigy P3 Trailer Brake Controller, Part Number 90195. In addition to the P3 Brake Controller, we’ll also be installing the Tekonsha Plug-in Wiring Adapter for electric brake controllers for GM vehicles, Part Number 3025-P.
Where is the engine control module located on a GM car?
At the factory the correct external module could then be quickly installed while using identical guage clusters, speedometers, and engine control modules. It is usually located near the ECM, or behind the glove compartment, or under the dashboard.
Where is the Drac module located on a GM car?
The DRAC module is programmed to account for different tire circumferences and gear ratios. At the factory the correct external module could then be quickly installed while using identical guage clusters, speedometers, and engine control modules. It is usually located near the ECM, or behind the glove compartment, or under the dashboard.
Where is the speed sensor on a 4WD car?
This signal causes BPMV to modify the anti-lock braking program for 4WD operation. Speed sensor signal is sent through a Vehicle Speed Sensor (VSS) buffer located behind glove box. If axle ratio or tire size is changed, VSS buffer must be replaced to match axle ratio or tire size as necessary.
How do I find the rear axle ratio on a 2002 Chevy Silverado?
Due to the various body styles, engine configurations and drive train options available, it can be difficult to determine the rear axle ratio of any particular 2002 Silverado by a simple visual inspection; however, with the right resources at your disposal, you may be able to determine your vehicle’s rear axle ratio using manufacturer’s codes.
http://www.etrailer.com/Accessories-a… Today on our 2002 Chevrolet Silverado we’ll be installing the Tekonsha Prodigy P3 Trailer Brake Controller, Part Number 90195. In addition to the P3 Brake Controller, we’ll also be installing the Tekonsha Plug-in Wiring Adapter for electric brake controllers for GM vehicles, Part Number 3025-P.
At the factory the correct external module could then be quickly installed while using identical guage clusters, speedometers, and engine control modules. It is usually located near the ECM, or behind the glove compartment, or under the dashboard.
The DRAC module is programmed to account for different tire circumferences and gear ratios. At the factory the correct external module could then be quickly installed while using identical guage clusters, speedometers, and engine control modules. It is usually located near the ECM, or behind the glove compartment, or under the dashboard.
