Scan Tool Data List. Buick GL7 (Export) 2000

For 1990-2009 cars

The Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

Use the Scan Tool Data List only after the following is determined:

• | Powertrain On-Board Diagnostic (OBD) System Check is completed.

• | No Diagnostic Trouble Codes (DTCs).

• | On-Board diagnostics are functioning properly.

Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Scan Tool Data List represents values that would be seen on a normally running engine.

Important: A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms for diagnosis.

The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

Engine Data1: Engine Data 1 List
Engine Data 2: Engine Data 2 List
EGR Data: Exhaust Recirculation Valve Data
Misfire Data: Cylinder Misfire Data
ODD Data: Output Driver Data

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off/Brake Pedal Released
3X Crank Sensor | Eng 2 | RPM | Varies
24X Crank Sensor | Eng 2 | RPM | Varies
A/C High Side Pressure Sensor | Eng 2 | Volts/PSI | Varies
A/C Off For WOT | Eng 2 | Yes/No | No
A/C Pressure Disable | Eng 2 | Yes/No | No
A/C Relay Circuit Status | ODD | OK/Fault/Invalid State | OK
A/C Relay Command | Eng 1, Eng 2, Misfire,EGR | On/Off | Off
A/C Request Signal | Eng 2 | Yes/No | No
Air Fuel Ratio | Eng 2 | Ratio | 14.2:1-14.7:1
BARO | Eng 1, EGR | kPa/Volts | 65-110 kPa/3.5-4.5 Volts
CMP Sensor Signal Present | Eng 2 | Yes/No | Yes
Current Gear | Eng 1, Eng 2 , EGR | Transmission Gear Position | Park(1)
Cycles Of Misfire Data | Misfire | Counts | 0-99
Cyllinder 1-6 Injector Circuit History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK
Cylinder 1-6 Injector Circuit Status | ODD | OK/Stuck Low (open)/Stuck High | OK
Decel Fuel Cutoff | EGR | Active/Inactive | Inactive
Desired EGR Position | Eng 1, EGR, Misfire | Percent | 0
Desired Idle Speed | Eng 1, Eng 2 | RPM | PCM Controlled (varies)
Driver Module 1 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled
Driver Module 2 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled
Driver Module 3 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled
Driver Module 4 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled
ECT Sensor | Eng 1, Eng 2, EGR, Misfire | °C/°F | Varies
EGR Flow Test Count | EGR | Counts | 0-10
EGR Learned Minimum Position | EGR | Volts | 0.14-1.0
EGR Position Sensor | Eng 1, EGR, Misfire | Percent / Volts | 0 / 0.14-1.0
EGR Position Variance | EGR | Percent | 0-100
EGR Solenoid command | EGR | Percent | 0-100
Engine Load | Eng 1, Eng 2, Misfire, EGR | Percent | 2-10
Engine Oil Level Switch | Eng 2 | OK/Low | OK
Engine Oil Life Remaining | Eng 2 | Percent | 0-100
Engine Oil Pressure Switch | Eng 2 | OK/Low/High | OK
Engine Run Time | Eng 1, Eng 2, EGR, Misfire | Hr: Min: Sec | Varies
Engine Speed | Eng 1, Eng 2, EGR, Misfire | RPM | Varies
EVAP Purge Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK
EVAP Purge Solenoid Command | Eng1 | Percent | Low and Varying
FC Relay 1 Command | Eng 2 | On/Off | Off
FC Relay 2 and 3 Command | Eng 2 | On/Off | Off
FC Relay 1Circuit Status | ODD | OK/Fault/Invalid State | OK
FC Relay 2 and 3 Circuit Status | ODD | OK/Fault/Invalid State | OK
Fuel Pump Relay Circuit History Status | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK
Fuel Pump Relay Circuit Status | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK
Fuel Pump Relay Command | Eng 1 | On/Off | On
Fuel Trim Cell | Eng 1 | 1,2,3,4 | 1
Fuel Trim Learn | Eng 1 | Enabled/Disabled | Enabled
Generator L Terminal Signal Command | Eng 2 | On/Off | On
HO2S 1 | Eng 1 | millivolts | 0-1000 and Varying
IAC Position | Eng 1, EGR | Counts | Varies
IAT Sensor | Eng 1, Eng 2, EGR | °C/°F | Varies
Ignition 1 Signal | Eng 1, Eng 2, EGR | Volts | Varies
Ignition Mode | Eng 2 | IC/Bypass | IC
Injector PWM | Eng 2, Misfire | milliseconds | Varies (1.5-3.5)
Knock Retard | Eng 1, EGR | Degrees | 0
Long Term FT | Eng 1, Eng 2 | Percent | 0-10
Loop Status | Eng 1, Eng 2, EGR | Open/Closed | Closed
MAF Sensor | Eng 1, Eng 2, EGR, Misfire | Grams per Second |
MAF Sensor | Eng 1 | Hz | 1200-3000 (depends on altitude and engine load)
MAP Sensor | Eng 1, Eng 2, EGR, Misfire | kPa/Volts | 20-48 kPa/0.75-2 Volts (depends on altitude)
MIL Command | Eng 2 | On/Off | Off
MIL Circuit status | ODD | OK/Fault/Invalid State | OK
Misfire Current Cyl. 1-6 | Misfire | Counts | 0
Misfire History Cyl. 1-6 | Misfire | Counts | 0
Number Of DTC's | Eng 1 | Varies | 0
PCM Reset | Eng 1, Eng 2, EGR, ODD | Pass/Fail | Pass
Power Enrichment | Eng 2, Misfire | Active/Inactive | Inactive
Short Term FT | Eng 1, Eng 2 | Percent | 0-10
Spark | Eng 1, Eng 2, Misfire | Degrees | 20 (varies)
Start Up ECT | Eng 2 | °C/°F | Varies
Start Up IAT | Eng 2 | °C/°F | Varies
Starter Enable Relay Circuit Status | ODD | OK/Fault | OK
Starter Relay Command | Eng 2 | On/Off | Off
TCC Brake Pedal Switch | Eng1,Eng 2 | Applied/Released | Released
TCC PWM Solenoid Command | Eng 2 | On/Off | Off
TP Sensor | Eng 1, Eng 2, EGR, Misfire | Percent/Volts | 0%/0.20-0.74
Vehicle Speed Sensor | Eng 1, Eng 2, EGR, Misfire | MPH/Km/h | 0
VTD Fuel Disable | Eng 1 | Active/Inactive | Inactive