| Table 1: | Chime Module |
| Table 2: | Engine Control Module (ECM)/Powertrain Control Module (PCM) |
| Table 3: | Instrument Panel Cluster (IPC) |
| Table 4: | Radio |
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.
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 |
Ign. Since Current DTC | Data | Cycles | varies |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Engine Idling/Normal Operating Temperature | |||
Battery Voltage | Engine Data 1 | Voltage | varies |
Check Trans. Lamp | Engine Data 1 | On/Off | Off |
Coolant Level Switch | Engine Data 1 Engine Data 2 | Ok/Low | Ok |
ECT Sensor | Engine Data 1 Engine Data 2 EGR Data Fuel Data Fuel Trim Data HO2S Data Misfire Data TC Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) |
Engine Oil Level Switch | Engine Data 1 Engine Data 2 | Ok/Low | Ok |
Engine Oil Life Remaining | Engine Data 1 Engine Data 2 | Percent | 0-100% |
Engine Oil Pressure Sensor | Engine Data 2 Fuel Data | Volts | varies |
Engine Oil Pressure Sensor | Fuel Data | kPa (psi) | varies |
Engine Speed | Engine Data 1 Engine Data 2 Cruise Control Data EGR Data Fuel Data Fuel Trim Data HO2S Data Misfire Data TAC Data | RPM | ±100 RPM from Desired Idle Speed |
Fuel Level Sensor | Fuel Data | Percent | 0-100% |
Fuel Level Sensor | Engine Data 1 Fuel Data | Volts | 0-5 Volts |
Fuel Level Sensor Rear Tank | Engine Data 1 Fuel Data | Volts | 0-5 Volts |
Fuel Tank Rated Capacity | Fuel Data | Gallons (Liters) | varies with fuel tank size |
Glow Plug Relay | Engine Data 1 | On/Off | Off |
Ignition 1 Signal | Engine Data 1 Engine Data 2 Cruise Control Data EGR Data Fuel Trim Data TAC Data | Volts | 9-16V varies |
Low Coolant Level | Engine Data 1 | Yes/No | No |
Low Oil Lamp Command | Engine Data 2 | On/Off | Off |
MIL Command | Engine Data 1 Engine Data 2 | On/Off | Off |
Reduced Engine Power | Engine Data 1 Cruise Control Data TAC Data | Active/Inactive | Inactive |
Vehicle Speed Sensor | Engine Data 1 EGR Data Fuel Data Fuel Trim Data HO2S Data Misfire Data TAC Data | kilometers per hour (miles per hour) | 0 km/h (0 mph) |
Wait to Start | Engine Data 1 | On/Off | Off |
Water in Fuel | Engine Data 1 | On/Off | Off |
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 | -- | varies |
ABS Lamp | Outputs | On/Off | Off |
Air Bag Lamp | Outputs | On/Off | Off |
Battery | Outputs | On/Off | Off |
Battery Voltage | Data | Voltage | varies |
Brake Lamp | Outputs | On/Off | Off |
Change Engine Oil | Outputs | On/Off | Off |
Check Eng Oil Level | Outputs | On/Off | Off |
Check Gages Lamp | Outputs | On/Off | Off |
Crank Voltage | Data | Voltage | varies |
Displayed Battery Voltage | Data | Voltage | varies |
Displayed Coolant Temp. | Data | Celsius (Fahrenheit) | varies |
Displayed Oil Pressure | Data | kPa/psi | varies |
Displayed Fuel Level | Data | Percent | varies |
Displayed Odometer | Data | Kilometer (Miles) | varies with mileage of vehicle |
Displayed Trip Odometer | Data | Kilometer (Miles) | varies with mileage of vehicle |
Engine Shutdown Indicator | Outputs | On/Off | Off |
Engine Speed | Data | RPM | 0 RPM |
Fasten Seat Belts | Outputs | On/Off | Off |
Ignition 0 | Data | Volts | 0 - 19 Volts |
Ignition 1 | Data | Volts | 0 - 19 Volts |
Ign. Since Current DTC | Data | Cycles | varies |
Low Coolant | Outputs | On/Off | Off |
Monitored Coolant Temp. | Data | Celsius (Fahrenheit) | varies |
Monitored Fuel Level | Data | Percent | varies |
Monitored Oil Pressure | Data | kPa (psi) | varies |
Overspeed Lamp | Outputs | On/Off | Off |
PRNDL State | Inputs | Park / Reverse / Neutral / Overdrive / Drive / 1st / 2nd / Invalid | Park |
Reduced Engine Power | Outputs | On/Off | Off |
Trip Reset Switch | Inputs | Active/Inactive | Inactive |
Vehicle Speed | Data | miles per hour (kilometers per hour) | 0 mph (0 km/h) |
Year Module Built | Module Information | -- | 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 | 9-16V varies |
Chime Type | Data | Fast / Medium / Medium Slow / Slow / Off | Off |
