| Table 1: | Body Control Module (BCM) |
| Table 2: | Instrument Panel Cluster (IPC) |
| Table 3: | Powertrain 3.4L |
| Table 4: | Powertrain 3.6L |
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 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 lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with 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 | |||
Door Ajar Switches | Inputs | Active/Inactive | Inactive |
Driver Door Open Sw | Inputs | Active/Inactive | Inactive |
Headlamp Switch | Inputs | Active/Inactive | Inactive |
Ignition 0 | Inputs | Active/Inactive | Active |
Ignition 1 | Inputs | Active/Inactive | Active |
Key In Ignition | Inputs | Active/Inactive | Active |
Liftgate Ajar Switch | Inputs | Active/Inactive | Inactive |
Park Brake Switch | Inputs | Active/Inactive | Inactive |
Parklamp Switch | Inputs | Active/Inactive | Inactive |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine OFF, Lights OFF, Turn Signals OFF, Park Brake Set, Seat Belt Unbuckled | |||
8 Digit GM Part Number | Module Information | -- | Varies |
Air Bag Lamp | Inputs | On/Off | On |
Ambient Temperature | Data | °C (°F) | Varies |
Antilock Lamp | Inputs | On/Off | Off |
Brake Lamp | Inputs | On/Off | On |
Cruise Lamp | Inputs | On/Off | Off |
DIC Mode Button | Inputs | On/Off | Off |
DIC Reset Button | Inputs | On/Off | Off |
High Beam Lamp | Inputs | On/Off | Off |
Ignition 0 | Data | Volts | 9-16 Volts (varies) |
Ignition 0 | Inputs | On/Off | On |
Left Turn Signal | Inputs | On/Off | Off |
Low Brake Fluid | Inputs | OK/Low | OK |
Low Coolant Level | Inputs | OK/Low | OK |
Low Washer Fluid | Inputs | OK/Low | OK |
Odometer | Data | miles (kilometers) | Varies |
PROM ID | Module Information | -- | Varies |
Revision Level | Module Information | -- | Varies |
Right Turn Signal | Inputs | On/Off | Off |
Seat Belt Lamp | Inputs | On/Off | On |
Software Release Level | Module Information | -- | Varies |
TCS Off Lamp | Inputs | On/Off | Off |
Trip Odometer Reset | Inputs | On/Released | Released |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine OFF | |||
ECT Sensor | Engine Data 1 Engine Data 2 EGR Data EVAP Data Fuel Trim Data Misfire Data | Celsius (Fahrenheit) | Varies with engine temperature |
Engine Oil Level Switch | Engine Data 2 | OK/Low | OK |
Engine Oil Life Remaining | Engine Data 2 | % | Varies |
Engine Oil Pressure Switch | Engine Data 2 | OK/Low | OK |
Engine Speed | Engine Data 1 Engine Data 2 EGR Data EVAP Data Fuel Trim Data Misfire Data TAC Data Cruise Control Data | RPM | Within 50 RPM of actual engine speed |
Fuel Level Sensor | EVAP Data | Volts | 0-5 V (Varies) |
Fuel Tank Level Remaining | EVAP Data | % | Varies |
Ignition 1 Signal | Engine Data 1 Engine Data 2 EGR Data EVAP Data Fuel Trim Data Misfire Data Cruise Control Data | Volts | 9-16 V (Varies) |
MIL Command | Engine Data 2 | On/Off | Off |
Vehicle Speed Sensor | Engine Data 1 Engine Data 2 EGR Data EVAP Data Fuel Trim Data Misfire Data TAC Data Cruise Control Data | km/h (mph) | 0 km/h (0 mph) |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine OFF | |||
Cruise Control Active | IPC Data | Yes/No | No |
Current Gear | IPC Data | Park/Reverse/Neutral/Drive/3rd/2nd/1st | Park |
ECT Sensor | Engine Data 1 Engine Data 2 EVAP Data Fuel Trim Data IPC Data | Celsius (Fahrenheit) | Varies with engine temperature |
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 |
Engine Speed | Engine Data 1 Engine Data 2 EVAP Data Fuel Trim Data IPC Data | RPM | Within 50 RPM of actual engine speed |
Fuel Level Sensor | EVAP Data IPC Data | Volts | 0-5 V (Varies) |
Fuel Level Sensor | IPC Data | Volts | 0-5 V (Varies) |
Fuel Tank Level Remaining | Engine Data 1 EVAP Data IPC Data | Gallons (Liters) | Varies |
Fuel Tank Rated Capacity | EVAP Data | Gallons (Liters) | 17.8 Gallons (67.3 Liters) |
Ignition 0 Signal | Engine Data 1 Engine Data 2 EVAP Data IPC Data | On/Off | On |
Ignition 1 Signal | Engine Data 1 Engine Data 2 EVAP Data IPC Data | On/Off | On |
Ignition 1 Signal | Fuel Trim Data | Volts | 9-16 V (Varies) |
MIL Command | Engine Data 1 Engine Data 2 IPC Data | On/Off | Off |
Reduced Engine Power | Engine Data 1 Engine Data 2 EVAP Data Fuel Trim Data IPC Data | Active/Inactive | Inactive |
Vehicle Speed Sensor | Engine Data 1 Engine Data 2 IPC Data | km/h (mph) | 0 km/h (0 mph) |
