Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Data List
The scan tool data list(s) contain all the instrument panel, gages, and console related parameters that are available on the scan tool. The parameters in the list are arranged in order, as they appear on the scan tool. The data list column indicates the location of the parameter within the scan tool menu selections.
Use the scan tool data list(s) as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with the Diagnostic System Check - Instrument Cluster for DIC, HUD, and IPC or Diagnostic System Check - Audible Warnings for audible warnings.
Use the scan tool data list(s) 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, High Beams Off, Doors and Hatch Closed, Park Brake Unapplied. | |||
| Battery Volts | Data | Volts | Varies |
| Driver Door Ajar Switch | Input Data 2 | Open/Closed | Closed |
| Hatch/Trunk Ajar | Input Data 2 | Open/Closed | Closed |
| Hatch/Trunk Release Switch | Input Data 2 | Active/Inactive | Inactive |
| Headlamp Off Switch | Input Data 1 | Active/Inactive | Active |
| Key In Ignition | Input Data 1 | Active/Inactive | Active |
| Key Out Of IGN | Input Data 1 | Active/Inactive | Inactive |
| Passenger Door Ajar Switch | Input Data 2 | Open/Closed | Closed |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Turn Ignition ON, Engine OFF, Doors and Hatch Closed, Park Brake Unapplied. | |||
| 8-Digit GM Part Number | Module Information 2 | Part Number | Varies |
| ABS Lamp | Inputs | On/Off | Off |
| Air Bag Lamp | Inputs | On/Off | Off |
| Ambient Light Sensor | Data 2 | Counts | 0-255 |
| Average Speed | Data 1 | km/h (mph) | 0-255 km/h (159 mph) |
| Avg. Fuel Economy | Data 1 | km/L (mpg) | 100 km/0-99.9 L (99.9 mpg) |
| Brake Fluid Level | Inputs | OK/Low | OK |
| Brake Lamp | Inputs | On/Off | Off |
| Check Engine Lamp State | Inputs | On/Off | Off |
| Check Gages Lamp | Inputs | On/Off | Off |
| Chime | Inputs | On/Off | Off |
| Circuit Board Day | Module Information 1 | Day | Varies |
| Circuit Board Month | Module Information 1 | Month | Varies |
| Circuit Board Year | Module Information 1 | Year | Varies |
| Cluster Manufacture Day | Module Information 2 | Day | Varies |
| Cluster Manufacture Month | Module Information 2 | Month | Varies |
| Cluster Manufacture Year | Module Information 2 | Year | Varies |
| Coolant Level Input | Inputs | OK/Low | OK |
| Courtesy Switch | Inputs | Active/Inactive | Inactive |
| Cruise Control Set Speed | Data 1 | km/h (mph) | 0-255 km/h (0-159 mph) |
| DIC Switch 1 | Inputs | Active/Inactive | Inactive |
| DIC Switch 2 | Inputs | Active/Inactive | Inactive |
| DIC Switch 3 | Inputs | Active/Inactive | Inactive |
| DIC Switch 4 | Inputs | Active/Inactive | Inactive |
| DIC Switch 5 | Inputs | Active/Inactive | Inactive |
| Elapse Time | Data 2 | Hours | 00-23 Hrs |
| Elapse Time | Data 2 | Minutes | 00-59 Min |
| Elapse Time | Data 2 | Seconds | 00-59 Sec |
| Engine Coolant Temp | Data 1 | °C (°F) | -40-215°C (-40-419°F) |
| Engine Oil Life Remaining | Data 1 | % | 0-100% |
| Fuel Range | Data 1 | km (mi) | 0-999 km (0-999 mi) |
| Fuel Remaining | Data 1 | L (gal) | 0-72.3L (0-19.1gal) |
| Head Lamp State | Inputs | On/Off | Off |
| High Beam Lamp | Inputs | On/Off | Off |
| Ignition 1 | Data 1 | Volts | 8-18 volts |
| Inst. Fuel Economy | Data 1 | km/L (mpg) | 100 km/0-99.9 L (99.9 mpg) |
| KM/H Lamp | Inputs | On/Off | Varies |
| Left Turn Signal | Inputs | On/Off | Off |
| LF Tire Pressure | Data 2 | kPa (psi) | 0-1020 kPa (0-148 psi) |
| Low Trac. Lamp | Inputs | On/Off | Off |
| LR Tire Pressure | Data 2 | kPa (psi) | 0-1020 kPa (0-148 psi) |
| MPH Lamp | Inputs | On/Off | Varies |
| Odometer | Data 2 | km (mi) | 0-999 999 km (0-624,999 mi) |
| Oil Pressure | Data 1 | kPa (psi) | 0-550kPa (0-80psi) |
| Oil Temp | Data 1 | °C (°F) | -40-215°C (-40-419°F) |
| Park Brake Switch | Inputs | Active/Inactive | Inactive |
| Park Lamp Input | Inputs | Active/Inactive | Inactive |
| Reset Switch | Inputs | Active/Inactive | Inactive |
| RF Tire Pressure | Data 2 | kPa (psi) | 0-1020 kPa (0-148 psi) |
| Right Turn Signal | Inputs | On/Off | Off |
| ROM ID | Module Information 1 | ID Number | Varies |
| RPM | Data 1 | RPM | 0-8000 RPM |
| RR Tire Pressure | Data 2 | kPa (psi) | 0-1020 kPa (0-148 psi) |
| Seat Belt Sensor | Inputs | Buckled/Unbuckled | Unbuckled |
| Security Lamp Status | Inputs | On/Off | Off |
| Switch Dimming | Data 2 | Counts | 0-255 |
| Trans Fluid Temp | Data 1 | °C (°F) | -40-215°C (-40-419°F) |
| Trip Odometer A | Data 2 | km/mi | 0-99 999 km (0-62,499 mi) |
| Trip Odometer B | Data 2 | km/mi | 0-99 999 km (0-62,499 mi) |
| Vehicle Speed | Data 1 | km/h (mph) | 0-255 km/h (159 mph) |
| Washer Fluid Sensor | Inputs | OK/Low | Ok |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Engine idling, normal operating temperature | |||
| ECT | Engine Data 1 | °C (°F) | 85-105°C (185-220°F) |
| Engine Oil Life | Engine Data 3 | % | Varies |
| Engine Oil Pressure Sensor | Engine Data 3 | V | Varies |
| Engine Oil Pressure Sensor | Engine Data 3 | kPa | 0 kPa |
| Engine Speed | Engine Data 1 | RPM | +/-100 RPM from Desired Idle Speed |
| Fuel Level Sensor Left Tank | Enhanced EVAP | 5-0 volts | 0.7-2.5 volts |
| Fuel Level Sensor Right Tank | Enhanced EVAP | 5-0 volts | 0.7-2.5 volts |
| Fuel Tank Level Remaining | Enhanced EVAP | % | Varies |
| Low Oil Level | Engine Data 2 | Yes/No | No |
| Vehicle Speed | Engine Data 1 | km/h (mph) | 0 km/h (0 mph) |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.