Scan Tool Parameter  | Data List  | Units Displayed  | Typical Data Value  | 
|---|---|---|---|
Operating Conditions : Ignition ON/Engine ON  | |||
2-Wheel Steer Mode Lamp  | Output  | On/Off  | Varies  | 
4-Wheel Steer Mode Lamp  | Output  | On/Off  | Varies  | 
4WS-Tow Mode Lamp  | Output  | On/Off  | Varies  | 
8-Digit GM Part Number  | ID Information  | Numeric  | Varies  | 
Actual Rear Steering Angle  | Data Display  | Degrees  | 0° to 12°  | 
Base Model Part Number  | ID Information  | Numeric  | Varies  | 
Battery Voltage  | Data Display  | Voltage  | 9.0-16.0 volts  | 
Calibration Part Number  | ID Information  | Numeric  | Varies  | 
Calibration S/W Suffix  | ID Information  | Numeric  | Varies  | 
Digital SWPS Phase A  | Data Display  | High/Low  | Varies  | 
Digital SWPS Phase B  | Data Display  | High/Low  | Varies  | 
Hall Sensor Reference  | Data Display  | Voltage  | 12 volts  | 
Ignition 3  | Data Display  | Voltage  | 9.0-16 volts  | 
Ignition Cycles Since Last Fault  | Data Display  | Counts  | Counts  | 
Marker Pulse  | Data Display  | High/Low  | 1  | 
Motor Current  | Data Display  | Amps  | 20-50 A Typical 0 to 85A Max  | 
Motor Relay Commanded State  | Data Display  | ON/OFF  | Varies  | 
Motor Relay Feedback State  | Data Display  | ON/OFF  | Varies  | 
Rear Steer Mode Actual  | Data Display  | 2WS, 4WS, 4WS Tow  | Varies  | 
Rear Steer Mode Requested  | Data Display  | 2WS, 4WS, 4WS Tow  | Varies  | 
Rear Steer Position 1  | Data Display  | Voltage  | 0.25-4.75 volts  | 
Rear Steer Position 2  | Data Display  | Voltage  | 0.25-4.75 volts  | 
Rear Steer Select Switch  | Data Display  | On/Off  | Off  | 
Rear Wheel Centering 1  | Data Display  | Voltage  | 2.5 volts  | 
Rear Wheel Centering 2  | Data Display  | Voltage  | 2.5 volts  | 
Requested Rear Steering Angle  | Data Display  | Degrees  | 0° to 12°  | 
Sensor Supply Voltage  | Data Display  | Voltage  | 4.97 volts  | 
Steering Wheel Angle  | Data Display  | Degrees  | -609° to +609°  | 
Steering Wheel Angle (TBC)  | Data Display  | Degrees  | -225 to +225  | 
Steering Wheel Sensor Signal  | BCM Data Display  | Voltage  | 0.25 volts to 4.75 volts  | 
Vehicle Speed  | Data Display  | km/h (mph)  | Varies  |