Scan Tool Data List
The scan tool data lists contain all the instrument panel, gage, and console related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The data list column indicates the location of the parameter within the scan tool menu selections.
Use the scan tool data lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures withDiagnostic System Check - Instrument Cluster ,Diagnostic System Check - Driver Information Systems orDiagnostic System Check - Audible Warnings .
Use the scan tool data lists only after the following is determined:
- There is no published DTC procedure nor published symptom procedure for the customer concern.
- The DTC or symptom procedure indicated by the diagnostic system check does not resolve the customer concern.
The typical data values are obtained from a properly operating vehicle under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF | |||
| Key in Ignition | Inputs | Yes/No | Yes |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Engine Idling/Normal Operating Temperature | |||
| ECT | Engine Data 1 Engine Data 2 Engine Data 3 EVAP Data |
Celsius (Fahrenheit) | 85-105°C (185-220°F) |
| Engine Oil Life Left | Engine Data 3 | % | Varies |
| Engine Oil Level Switch | Engine Data 2 Engine Data 3 |
OK/Low | OK |
| Engine Oil Pressure Switch | Engine Data 3 | OK/Low | OK |
| Engine Speed | Engine Data 1 Engine Data 3 EVAP Data |
RPM | +/-100 RPM from Desired Idle Speed |
| Fuel Level | Engine Data 1 EVAP Data |
Liters/Gallons | Varies w/fuel level |
| Fuel Level Sensor Left | Engine Data 1 EVAP Data |
Volts | Varies w/fuel level |
| Fuel Level Sensor Right | Engine Data 1 EVAP Data |
Volts | Varies w/fuel level |
| Vehicle Speed | Engine Data 1 Engine Data 2 Engine Data 3 EVAP Data |
kilometers per hour (miles per hour) | 0 km/h (0 mph) |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Engine Idling/Normal Operating Temperature | |||
| Cruise Control Active | IPC Data | Yes/No | No |
| Current Gear | IPC Data | PRNDL | Varies |
| ECT Sensor | Engine Data 1 Engine Data 2 EVAP Data IPC Data |
Celsius (Fahrenheit) | 85-105°C (185-220°F) |
| Engine Oil Life Remaining | IPC Data | % | Varies |
| Engine Oil Level Switch | IPC Data | OK/Low | OK |
| Engine Oil Pressure Sensor | IPC Data | OK/Low | OK |
| Engine Oil Pressure Sensor | IPC Data | kPa (psi) | Varies w/oil pressure |
| Engine Oil Pressure Sensor | IPC Data | Volts | Varies w/oil pressure |
| Engine Speed | Engine Data 1 Engine Data 3 EVAP Data IPC Data |
RPM | +/-100 RPM from Desired Idle Speed |
| Fuel Level Sensor Left | EVAP Data IPC Data |
Volts | Varies w/fuel level |
| Fuel Level Sensor Right | EVAP Data IPC Data |
Volts | Varies w/fuel level |
| Fuel Tank Level Remaining | Engine Data 1 EVAP Data IPC Data |
Liters/Gallons | Varies w/fuel level |
| Fuel Tank Level Remaining | EVAP Data IPC Data |
% | Varies w/fuel level |
| Ignition 0 Signal | IPC Data | Yes/No | Yes |
| Ignition 1 Signal | IPC Data | Yes/No | Yes |
| MIL Circuit Status | IPC Data | OK/Low | OK |
| MIL Command | IPC Data | Yes/No | No |
| Reduced Engine Power | IPC Data | Yes/No | No |
| Vehicle Security Status | IPC Data | On/Off | Off |
| Vehicle Speed Sensor | Engine Data 1 Engine Data 2 EVAP Data 3 IPC Data |
kilometers per hour (miles per hour) | 0 km/h (0 mph) |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Park Brake Unapplied | |||
| 8 Digit GM Part Number | ID Information | Numeric | Varies |
| ABS Input | Inputs | On/Off | Off |
| Battery Volts | Data | Volts | 9-16 V |
| Brake Fluid Switch | Data | Volts | Varies w/fluid level |
| Calibration ID | ID Information | Numeric | Varies |
| Component Serial No. 12 | ID Information | Numeric | Varies |
| Component Serial No. 13 | ID Information | Numeric | Varies |
| Component Serial No. 17 | ID Information | Numeric | Varies |
| Component Serial No. 8- | ID Information | Numeric | Varies |
| DIC Down Switch | Data | Volts | 5.0 V |
| DIC Down Switch | Inputs | On/Off | Off |
| DIC Information Switch | Data | Volts | 5.0 V |
| DIC Information Switch | Inputs | On/Off | Off |
| DIC Up Switch | Data | Volts | 5.0 V |
| DIC Up Switch | Inputs | On/Off | Off |
| Engine Speed | Data | RPM | 0 RPM |
| Ignition 1 | Inputs | On/Off | On |
| Ignition Counter | Data | Cycles | Varies |
| Julian Date of Build | ID Information | Numeric | Varies |
| Left Turn Signal | Inputs | On/Off | Off |
| Park Brake Switch | Inputs | On/Off | Off |
| PROM ID | ID Information | Numeric | Varies |
| Right Turn Signal | Inputs | On/Off | Off |
| Tap Up/Down Switch | Inputs | Up/Down | Down |
| Vehicle Speed | Data | kilometers per hour (miles per hour) | 0 km/h (0 mph) |
| Year Model Built | ID Information | Numeric | Varies |