Scan Tool Data List
The scan tool data lists contain all of the instrument panel, gages, 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 in order to complete a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with the Diagnostic System Check - Instrument Cluster or Diagnostic System Check - Audible Warnings .
Use the scan tool data lists only in the following circumstances:
- There is not any published DTC procedure nor any published symptom procedure for the customer concern.
- The DTC procedure or the symptom procedure indicated by the diagnostic system check does not resolve the customer concern.
The typical data values are from a vehicle that is operating correctly under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspected 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/Seat Belt Buckled/High Beams Off/Park Brake Unapplied | |||
| Battery Voltage | Data | Volts | Varies |
| Cargo Door Ajar Switch | Inputs | Open/Closed | Open |
| Driver Door Ajar Switch | Inputs | On/Off | Off |
| Headlamp Switch | Inputs | Active/Inactive | Inactive |
| Ignition Unlock | Inputs | Active/Inactive | Active |
| Key in Ignition | Inputs | Yes/No | Yes |
| Park Brake Switch | Inputs | Set/Released | Released |
| Parklamp Switch | Inputs | Active/Inactive | Inactive |
| Rap Relay | Outputs | On/Off | On |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied | |||
| 8-Digit GM Part Number | Module Information 1 | Numeric | Varies |
| ABS Lamp | Input/Output | On/Off | Off |
| Air Bag Lamp | Input/Output | On/Off | Off |
| Battery | Input/Output | On/Off | On |
| Brake Lamp | Input/Output | On/Off | Off |
| Change Engine Oil | Input/Output | On/Off | Off |
| Check Gages Lamp | Input/Output | On/Off | Off |
| Cruise Control | Input/Output | On/Off | Off |
| Displayed Battery Voltage | Data 1 | Volts | Varies |
| Displayed Coolant Temp. | Data 1 | Celsius (Fahrenheit) | Varies |
| Displayed Fuel Level | Data 1 | Percent | Varies |
| Displayed Odometer | Data 2 | Kilometers (Miles) | Varies with mileage of vehicle |
| Displayed Oil Pressure | Data 1 | kPa (psi) | Varies |
| DRL Lamp | Input/Output | On/Off | Off |
| Fasten Seat Belts | Input/Output | On/Off | Off |
| High Beam Lamp | Input/Output | On/Off | Off |
| HydroMax Flow Switch | Input/Output | On/Off | Off |
| Ignition 1 | Data 1 | Volts | 0-19 V |
| Ign. Since Current DTC | Data 1 | Cycles | Varies |
| Julian Date of Build | Input/Output | Numeric | Varies |
| Left Turn Input | Input/Output | Open/Closed | Open |
| Low Fuel Lamp | Input/Output | On/Off | Off |
| Monitored Battery Voltage | Data 1 | Volts | Varies |
| Monitored Coolant Temp | Data 1 | Celsius (Fahrenheit) | Varies |
| Monitored Fuel Level | Data 1 | Percent | Varies |
| Monitored Oil Pressure | Data 1 | kPa (psi) | Varies |
| Monitored Vehicle Speed | Data 1 | km/h (mph) | 0 km/h (0 mph) |
| PRNDL State | Input/Output | Park/Reverse/Neutral/Drive/3rd/2nd/1st | Park |
| Right Turn Input | Input/Output | Open/Closed | Open |
| Security Lamp | Input/Output | On/Off | Off |
| Tow/Haul | Input/Output | On/Off | Off |
| Trip Odometer A | Data 2 | Kilometers (Miles) | Varies |
| Trip Odometer B | Data 2 | Kilometers (Miles) | Varies |
| Trip Reset Switch | Input/Output | Active/Inactive | Inactive |
| Year Module Built | Module Information 1 | Numeric | Varies |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied | |||
| Chime | Data | On/Off | Off |
| Chime Duration | Data | Cycles | varies |
| Chime Frequency | Data | Hz | varies |
| Chime Type | Data | Fast/Medium/Medium Slow/Slow | varies |
| Ign. Since Current DTC | Data | Cycles | varies |
| Indicator Type | Data | - | varies |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied | |||
| Battery Voltage | Data | Volts | 9-16 V varies |
| Chime Type | Outputs | Fast/Medium/Medium Slow/Slow/Off | varies |
| Ign. Since Current DTC | Data | Cycles | varies |