| Table 1: | Body |
| Table 2: | Chassis |
| Table 3: | Powertrain Control Module (PCM) |
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 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 .
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/Seatbelts Unbuckled | |||
8-Digit GM Part Number | SIR Module Information 2 | Numerical | Varies |
Driver Side Belt Status | SIR Inputs | Buckled/Unbuckled | Unbuckled |
Ignition Voltage | SIR Data | Volts | Varies |
Security Lamp | Passlock Data Display | On/Off | Off |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition On/Engine OFF | |||
ABS Warning Lamp | 4WAL 3 Sensor Data Display | On/Off | Off |
Brake Warning Lamp | 4WAL 3 Sensor Data Display | On/Off | Off |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Engine Idling/Normal Operating Temperature | |||
ECT Sensor | Engine Data 1 Engine Data 2 EGR Data Enhanced EVAP Data Misfire Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) |
Engine Speed | Engine Data 1 Engine Data 2 EGR Data Fuel Trim Data Misfire Data Enhanced EVAP Data TAC Data Cruise Control Data | RPM | ±100 RPM from Desired Idle Speed |
Fuel Tank Level Remaining | Enhanced EVAP Data | Liters (Gallons) | Varies |
Fuel Tank Level Remaining | Enhanced EVAP Data | 0-100 Percent | Varies |
Fuel Level Sensor | Enhanced EVAP Data | 0-5 Volts | Varies |
Vehicle Speed Sensor | Engine Data 1 Engine Data 2 EGR Data Fuel Trim Data Misfire Data Enhanced EVAP Data TAC Data Cruise Control Data | Kilometers per hour (Miles per hour) | 0 km/h (0 mph) |
