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 - Vehicle in Vehicle DTC Information.
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.
Body Control Module (BCM)
| 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 |
Instrument Panel Cluster (IPC)
| 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 | Closed/Open | Closed |
| Ignition 1 | Data 1 | Volts | 0-19 V |
| Ign. Since Current DTC | Data 1 | Cycles | varies |
| Julian Date of Build | Module Information 1 | 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 |
Multifunction Alarm Module
| 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 |
Powertrain Control Module (PCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Engine Idling/Normal Operating Temperature | |||
| Coolant Level Switch | Engine Data 2 | Ok/Low | Ok |
| Cruise Control Active | Engine Data 1 | On/Off | Off |
| DTC Set This Ignition | Engine Data 1 Engine Data 2 Fuel Trim Data Enhanced EVAP Data H02S Data |
Numeric | varies |
| ECT Sensor | Engine Data 1 Engine Data 2 Fuel Trim Data Misfire Data Enhanced EVAP Data H02S Data |
Celsius (Fahrenheit) | 85-105°C (185-220°F) |
| Engine Oil Level Switch | Engine Data 2 | Ok/Low | Ok |
| Engine Oil Life Remaining | Engine Data 2 | Percent | 0-100% |
| Engine Oil Pressure Sensor | Engine Data 2 | Volts | 0-5 V |
| Engine Speed | Engine Data 1 Engine Data 2 Fuel Trim Data Misfire Data Enhanced EVAP Data H02S Data |
RPM | +/-100 RPM from Desired Idle Speed |
| Fuel Level Sensor | Engine Data 1 Enhanced EVAP Data |
Volts | 0-5 V |
| Fuel Level Sensor Rear | Engine Data 1 Enhanced Evap Data |
Volts | 0-5 V |
| Fuel Tank Level Remaining | Enhanced EVAP Data | Gallons (Liters) | varies |
| Fuel Tank Level Remaining | Enhanced EVAP Data | Percent | 0-100% |
| Fuel Tank Rated Capacity | Enhanced EVAP Data | Gallons (Liters) | varies |
| Ignition 1 Signal | Engine Data 1 Engine Data 2 Fuel Trim Data Enhanced EVAP Data |
Volts | 9-16 V varies |
| Low Oil Lamp Command | Engine Data 2 | On/Off | Off |
| MIL Command | Engine Data 2 | On/Off | Off |
| TR Sw. | Engine Data 2 Fuel Trim Data |
On/Off | Off |
| Vehicle Speed Sensor | Engine Data 1 Engine Data 2 Fuel Trim Data Misfire Data Enhanced EVAP Data H02S Data |
km/h (mph) | 0 km/h (0 mph) |
Radio
| 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 |