Control Module Data Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1998 GMC Yukon, 1998 GMC Suburban, 1998 GMC Pickup, 1998 GMC Cab & Chassis, and 1998 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Use scan tool data listed in DATA INFORMATION for comparison after ATC SYSTEM CHECK and finding on-board diagnostics function properly with no DTCs displayed. Typical scan tool data values are an average of display values recorded from normal operating vehicles. Values are intended to represent what a normal functioning system would display. Values may vary due to low battery charge or other conditions, but values should be close. Ensure scan tool is functioning properly. Use of faulty scan tool can result in misdiagnosis and unnecessary parts replacement. Use only parameters listed in table for diagnosis.
DATA INFORMATION
| Scan Position (1) | Units Displayed | Typical Data Value | ||||
|---|---|---|---|---|---|---|
| TP Sensor | Percent (%) | (2) Varies | ||||
| Front Speed Sensor | RPM | Varies | ||||
| Rear Speed Sensor | RPM | Varies | ||||
| ATC Slip Speed | RPM | Varies | ||||
| Slip Adapt Mode | On/Off | N/A | ||||
| Slip Adapt PWM | Percent (%) | Varies | ||||
| Current Slip Adapts | Counts | Varies | ||||
| Last Adapt Highest PWM | Counts | Varies | ||||
| Throttle Anticipation Mode | On/Off | N/A | ||||
| Current Throttle Anticipation | Counts | Varies | ||||
| Ignition 3 | Volts | 13.6 | ||||
| Ignition Cycles Since 12V Low | Counts | Varies | ||||
| Park Switch | Open/Closed | Closed In Park | ||||
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