| Table 1: | Body Control Module (BCM) |
| Table 2: | Instrument Panel Cluster (IPC) |
| Table 3: | Powertrain Control Module (PCM) |
| Table 4: | Radio |
| Table 5: | Roof and Door Module (RDM) |
The scan tool data lists 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 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 with the Diagnostic System Check - Vehicle in Vehicle DTC Information.
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/High Beams Off/Doors Closed/Trunk Closed/Park Brake Unapplied/Seat Belt Buckled | |||
Battery Voltage | Data | Volts | Varies |
Driver Door Ajar Switch | Inputs | On/Off | Off |
Headlamp Switch | Inputs | Active/Inactive | Inactive |
High Beam Relay | Outputs | On/Off | Off |
High Beam Switch | Inputs | On/Off | Off |
Ignition 0 | Inputs | On/Off | On |
Ignition 1 | Inputs | On/Off | On |
Key In Ignition | Inputs | Yes/No | Yes |
Low Beam Output | Outputs | On/Off | Off |
Park Brake Switch | Inputs | Set/Released | Released |
Park Lamp Relay | Outputs | On/Off | Off |
Parklamp Switch | Inputs | Active/Inactive | Inactive |
Passenger Door Ajar Switch | Inputs | On/Off | Off |
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/Park Lamps ON | |||
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 |
Battery Voltage | Data 1 | Volts | 9.0-16 Volts (Varies) |
Brake Lamp | Input/Output | On/Off | Off |
Check Gages Lamp | Input/Output | On/Off | Off |
Cruise Control | Input/Output | On/Off | Off |
DIC Fuel Info | Input/Output | On/Off | Off |
DIC Personalization | Input/Output | On/Off | Off |
DIC Select | Input/Output | On/Off | Off |
DIC Trip Info. | Input/Output | On/Off | Off |
Displayed Coolant Temp | Data 1 | Celsius (Fahrenheit) | 32-127°C (89-260°F) (Varies) |
Displayed Fuel Level | Data 1 | Percent | 0-100% (Varies) |
Displayed Odometer | Data 2 | Kilometers (Miles) | Varies with the mileage of vehicle |
Displayed Oil Pressure | Data 1 | kPa (psi) | 0 kPa (0 psi) |
Engine Speed | Data 1 | RPM | 0 RPM |
Fasten Seat Belts | Input/Output | On/Off | Off |
High Beam Lamp | Inputs | On/Off | Off |
Ignition 1 | Data 1 | Volts | 9-16 Volts (Varies) |
Ign. Since Current DTC | Data 1 | Cycles | 0-255 |
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 |
Low Washer Fluid | Input/Output | OK/Low | OK |
Monitored Coolant Temp | Data 1 | Celsius (Fahrenheit) | 82-93°C (180-200°F) |
Monitored Fuel Level | Data 1 | Percent | 0-100% (Varies) |
Monitored Oil Pressure | Data 1 | kPa (psi) | 0 kPa (0 psi) |
PRNDL State | Input/Output | Park / Reverse / Neutral / First / Second / Third / Drive | Park |
Right Turn Input | Input/Output | Open/Closed | Open |
Security Lamp | Input/Output | On/Off | Off |
Software Part Number | Module Information 2 | Numeric | Varies |
Software Revision Number | Module Information 2 | Numeric | Varies |
Trip Odometer A | Data 2 | Miles (Kilometers) | Varies |
Trip Odometer B | Data 2 | Miles (Kilometers) | Varies |
Trip Reset Switch | Input/Output | Active/Inactive | Inactive |
Vehicle Speed | Data 1 | Miles (Kilometers) | 0 km/h (0 mph) |
Year Model Built | Module Information 1 | Numeric | Varies |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Engine Idling/Normal Operating Temperature | |||
4WD Signal (If Equipped) | Engine Data 2 | Enabled/Disabled | Disabled |
4WD Low Signal (If Equipped) | Engine Data 2 | Enabled/Disabled | Disabled |
Coolant Level Switch | Engine Data 2 | Ok/Low | Ok |
ECT Sensor | Engine Data 1 Engine Data 2 Enhanced EVAP Data Fuel Trim Data HO2S Data Misfire Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) (Varies) |
Engine Oil Level Switch | Engine Data 2 | Ok/Low | Ok |
Engine Oil Life Remaining | Engine Data 2 | Percent | 0-100% (Varies) |
Engine Oil Pressure Sensor | Engine Data 2 | Volts | 0-5 Volts (Varies) |
Engine Speed | Cruise Control Data Engine Data 1 Engine Data 2 Enhanced EVAP Data Fuel Trim Data HO2S Data Misfire Data TAC Data Transmission Data | RPM | ±100 RPM from Desired Idle Speed |
Fuel Level Sensor | Engine Data 1 Enhanced EVAP Data | Volts | 0-5 Volts (Varies) |
Fuel Level Sensor Rear Tank (If Equipped) | Engine Data 1 Enhanced EVAP Data | Volts | 0-5 Volts (Varies) |
Fuel Tank Level Remaining | Enhanced EVAP Data | Gallons (Liters) | Varies |
Fuel Tank Level Remaining | Enhanced EVAP Data | Percent | 0-100% (Varies) |
Fuel Tank Rated Capacity | Enhanced EVAP Data | Gallons (Liters) | Varies |
Ignition 1 Signal | Cruise Control Data Engine Data 1 Engine Data 2 Enhanced EVAP Data Fuel Trim Data TAC Data | Volts | 9-16 Volts (Varies) |
Low Oil Lamp Command | Engine Data 2 | On/Off | Off |
MIL (Malfunction Indicator Lamp) Command | Engine Data 2 | On/Off | Off |
Reduced Engine Power | Cruise Control Data Engine Data 1 TAC Data | Active/Inactive | Inactive |
Trans. Fluid Temp | Transmission Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) (Varies) |
Vehicle Speed Sensor | Cruise Control Data Engine Data 1 Engine Data 2 Enhanced EVAP Data Fuel Trim Data HO2S Data Misfire Data TAC Data Transmission Data | Miles per hour (Kilometers per hour) | 0 km/h (0 mph) |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition in RUN, Radio ON | |||
Balance | Data | Value | -50 to +50 |
Battery Voltage | Data | Volts | 0-18 Volts |
Fade | Data | Value | -50 to +50 |
Volume | Data | Percent | 0-100% |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON / Engine OFF / Doors Closed / Rear Compartment Closed | |||
Battery Voltage Signal | Data | Volts | 9-16 Volts |
Driver Door Ajar Switch | Inputs | Door Ajar/Door Closed | Door Closed |
Passenger Door Ajar Switch | Inputs | Door Ajar/Door Closed | Door Closed |
Rear Compartment Lid Ajar | Inputs | Ajar/Closed | Closed |
