Controller Area Network (CAN)
CAN OR CAN bus is a message-based protocol, designed primarily for automotive applications. The CANBus allows micro-controllers and devices to communicate with each other within the vehicle without a host computer. Each node can send and receive information, though not simultaneously. Information consists primarily of an ID, that represents the priority of the information, and up to eight data bytes. It is transmitted serially onto the bus. Basically the system I have installed from the 2000 C5 corvette consist of Power-train Control Module, Body Control Module and other modules that communicate with each other to carryout the complete operation of the vehicle.
Remote Function Actuation (RFA) Module 2001+ Upgrade
One of the rear TPMS was not functioning and I was unable to
program/learn it to the monitor system. My donor is a 2000 coupe so the
majority of my donor parts are 2000 with the exception of my 2003 LS6. Rather
than just replace the back sensor and worry about the others failing in short
time I looked for an option. I did some research and discovered that the system
changed in 2001 and later C5 corvettes. The new system's TPMS is half the cost
of the older 2000 and earlier sensors. So I purchased a set of 2001+ sensors
and a 2001+ RFA. The 2001+ RFA uses the exact same CAN data and voltages, but
with only three wires. The older RFA is a four wire set up. I was able to wire
in the new module since the communication is identical to the older. After I
mounted the tires on the chassis I used a magnetic tool holder to program/learn
the sensors into the system. I have the new module temp mounted to the old
module's bracket for now and will move it once the body is removed again.
Remote Function Actuation(RFA) Module
The RFA is a remote radio frequency receiver. It is used to remotely receive radio signals from the Tire Pressure Monitor Sensors and the remote key fob. The Tire Pressure Monitor Sensors are located in the wheels and transmit a signal to the RFA. I mounted the RFA to the inside of the passenger rear inner wheel well aluminum panel.
I am also planning to replace this RFA with a 2001 - 2004 RFA. I I will purchase new tire pressure wheel sensors and the 2001+ sensors are half the price of the 2000- sensors. Another advantage to this modification would be the
I have a concern about the heat affecting the module. So I purchased an ABS project box that I plan to install. I may move it to the opposite side of the panel or leave it. We'll see.
I am also planning to replace this RFA with a 2001 - 2004 RFA. I I will purchase new tire pressure wheel sensors and the 2001+ sensors are half the price of the 2000- sensors. Another advantage to this modification would be the
I have a concern about the heat affecting the module. So I purchased an ABS project box that I plan to install. I may move it to the opposite side of the panel or leave it. We'll see.
Yaw-Rate Sensor
The Yaw-Rate Sensor is a solid-state device utilizes a tiny pair of ceramic tuning forks to measure the actual rate that the car is turning or yawing from the center-line. This data is continuously fed into the computer where the yaw rate is compared to the steering angle. Any variation beyond a pre-programmed set of values will result in activation of the Active Handling system's assist features.
Lateral Accelerometer
The lateral acceleration sensor measures the centrifugal force created in a turn. The data it provides is weighed against all of the other inputs and is used to calculate whether or not the car's limits are being exceeded for the speed and traction conditions that exist.
Steering Angle Sensor
The steering angle sensor is a digital sensor that monitors the driver's steering inputs immediately and communicates the steering angle that the driver has selected back to the system. It is accurate to within one degree of steering angle change and is located in the car's steering column just inside the fire wall. Since the steering column is shortened for the GTM I had to move the sensor closer to the steering wheel.