Scan Tool Data Definitions

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.

ATC Calibration Part Number: The scan tool displays a numeric value. This parameter indicates the part number assigned to the current version of calibrations used in the ATC module.

ATC Hardware Part Number: The scan tool displays a numeric value. This parameter indicates the part number assigned to the module (excluding the software and calibrations).

ATC Julian Date: The scan tool displays a numeric value. This parameter indicates the production date of the ATC module.

ATC Part Number: The scan tool displays a numeric value. This parameter indicates the GM part number assigned to the module package (module, software, and calibrations).

ATC Slip Speed: The scan tool displays a range of 0-8192 rpm. This parameter indicates the rpm difference between the front and rear propshafts.

ATC Software Part Number: The scan tool displays a numeric value. This parameter indicates the part number assigned to the current version of software used in the ATC module.

Battery Voltage: The scan tool displays a range of 0-25.5 volts. This parameter indicates the voltage measured by the transfer case shift control module at its battery feed.

Clutch Pedal Engaged: The scan tool displays YES or NO. This parameter indicates whether or not the clutch pedal is engaged.

Current Slip Adapts: The scan tool displays a numeric value. This parameter indicates corrective adjustments made by the transfer case shift control module for wheel slip events.

Front Propshaft Speed: The scan tool displays a range of 0-8192 rpm. This parameter indicates the rotational speed of the front propshaft.

Ignition Cycles Since Last Current DTC: The scan tool displays a numeric value. This parameter indicates how many ignition cycles have occurred since last current DTC was set.

Rear Propshaft Speed: The scan tool displays a range of 0-8192 rpm. This parameter indicates the rotational speed of the rear propshaft.

Service 4WD Lamp: The scan tool displays ON or OFF. This parameter indicates if the Service 4WD Lamp is being commanded by the transfer case shift control module.

Slip Adapt PWM: The scan tool displays a range of 0-100 %. This parameter indicates the Duty Cycle applied to the ATC motor.

Total Slippage: The scan tool displays a range of 0-8192 rpm. This parameter indicates the total slippage of both the front and rear propshafts.