The Engine Scan Tool Data List contains all of the 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 Engine Scan Tool Data List only after the following are determined:
| • | The Powertrain On-Board Diagnostic System Check is completed. |
| • | No diagnostic trouble codes (DTCs) are present. |
| • | The 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 Engine Scan Tool Data List represents values that would be seen from a normally running engine.
Important: A scan tool that displays faulty data should not be used. Any 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: The engine data 1 listCatalyst Data: The exhaust catalyst data
EGR Data: The exhaust recirculation valve data
EVAP Data: The evaporative emissions data
IPC Data: The instrument panel cluster data
HO2S Data: The heated oxygen sensor data
Misfire Data: The cylinder misfire data
AIR Data: The air injection reaction data
ODD Data: The 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 | Misfire | RPM | Varies |
24X Crank Sensor | Eng 1, Misfire | RPM | Varies |
1-2 Sol. | ODD | OK/Fault/Invalid State | OK |
2-3 Sol. | ODD | OK/Fault/Invalid State | OK |
Abuse Management | Misfire | Active/Inactive | Inactive |
A/C High Side Pressure | Eng 1 | Volts/PSI | Varies |
A/C Off for WOT | Eng 1 | Yes/No | No |
A/C Relay | ODD | OK/Fault/Invalid State | OK |
A/C Request | Eng 1, EGR, Misfire | Yes/No | No |
A/C Pressure Disable | Eng 1 | Yes/No | No |
Actual EGR Position | Eng 1, EGR, Misfire | Percent | 0 |
Air Fuel Ratio | AIR, Cat, HO2S | Ratio | 14.2:1 - 14.7:1 |
Air Active Test Inhibit | AIR | Yes/No | -- |
Air Active Test Air Injection | AIR | Yes/No | -- |
Air Diagnostic Complete | AIR | Yes/No | -- |
Air Passive Test 1 Pass | AIR | Yes/No | -- |
Air Passive Test 2 Fail | AIR | Yes/No | -- |
Air Passive Test Passed | AIR | Yes/No | -- |
Air Passive Test Inhibit | AIR | Yes/No | -- |
Air Passive Test In Progress | AIR | Yes/No | -- |
Air Pump Relay | Eng 1, AIR, HO2 | On/Off | Off |
Air Pump Relay | ODD | OK/Fault/Invalid | Fault |
Air Solenoid | AIR, ODD | OK/Fault/Invalid | Fault |
Air Solenoid | Eng 1, HO2S, AIR | On/Off | Off |
BARO | Eng 1, EGR, EVAP, Cat | kPa/volts | 65-110 kPa / 3.5-4.5 volts |
Brake Switch | Eng 1 | Applied/Released | Released |
CMP Sensor Signal Present | Eng 1, Misfire | Yes/No | Yes |
Commanded A/C | Eng 1, Cat, Misfire, EGR | On/Off | Off |
Commanded Fuel Pump | Eng 1 | On/Off | On |
Commanded Gen | IPC | On/Off | On |
Commanded Starter | Eng 1 | Enabled/Disabled | Disabled |
Cruise Mode | Eng 1 | On/Off | Off |
Cruise Inhibit Signal Command | Eng 1 | On/Off | ON |
Cruise Inhibited | ODD | OK/Fault/Invalid State | OK |
Current Gear | Cat, EGR | Transmission Gear Position | Park (1) |
Cycles Of Misfire Data | Misfire | Counts | 0-99 |
Cyl. 1-6 Injector CKT History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Cyl. 1-6 Injector CKT Status | ODD | OK/Stuck Low (open)/Stuck High | OK |
Decel Fuel Mode | EGR, HO2S, Misfire, | Active/Inactive | Inactive |
Desired EGR Position | Eng 1, EGR, Misfire | Percent | 0 |
Desired Idle Speed | Eng 1 | 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 | Eng 1, AIR, EGR, EVAP, Cat, HO2S, Misfire | °C/°F | Varies |
EGR Closed Val. Pintle Pos. | EGR | Volts | 0.14-1.0 |
EGR Duty Cycle | EGR, Eng 1 | Percent | 0 |
EGR Feedback | EGR | Volts | 0.14-1.0 |
EGR Flow Test Count | EGR | Counts | 0-10 |
EGR Position Error | EGR | Percent | 0-100 |
Engine Load | Eng 1, Cat, Misfire, EGR, EVAP, AIR | Percent | 2-10 |
Engine Run Time | Eng 1, EVAP, Cat, EGR, AIR, HO2S | Hr: Min: Sec | Varies |
Engine Speed | Eng 1, EGR, EVAP, Cat, HO2S, Misfire, | RPM | Varies |
Engine Oil Level | IPC | OK/Low | OK |
Engine Oil Life | IPC | Percent | 0-100 |
Engine Oil Pressure | IPC | OK/Low/High | OK |
EVAP Canister Purge | EVAP, HO2S, Eng 1, AIR | Percent | Low and Varying |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum | No Fault |
EVAP Purge Sol. | ODD, EVAP | OK/Fault/Invalid State | OK |
EVAP Vent Sol. | Eng 1, HO2S, EVAP | Open/Closed | Open |
EVAP Vent Sol. | EVAP, ODD | OK/Fault/Invalid State | OK |
Fans High Speed | Eng 1, Cat | On/Off | Off |
Fans Low Speed | Eng 1, Cat | On/Off | Off |
FC Relay 1 | ODD | OK/Fault/Invalid State | OK |
FC Relay 2 and 3 | ODD | OK/Fault/Invalid State | OK |
Fuel Level | EVAP, IPC | Percent | 0-100 |
Fuel Pump CKT History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Fuel Pump CKT Status | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Fuel Tank Pressure | EVAP | in H2O/ volts | Varies |
Fuel Trim Cell | Eng 1, Cat, AIR | 0-4 | 0 |
Fuel Trim Learn | Eng 1, Cat, EVAP | Enabled/Disabled | Enabled |
HO2S Sensor 1 | Eng 1, HO2S, Cat | Ready/Not Ready | Ready |
HO2S Sensor 1 | Eng 1, Cat, HO2S, Misfire, AIR | Millivolts | 0-1000 and Varying |
HO2S Sensor 2 | Eng 1, HO2S, Cat | Millivolts | 0-1000 and Varying |
HO2S X Counts | HO2S, Eng1 | Counts | Varies |
Hot Open Loop | EGR, Cat | Active/Inactive | Inactive |
Hot Mode | Misfire | On/Off | Off |
IAC Position | Eng1, Cat | Counts | Varies |
IAT | Eng 1, EVAP, Cat, HO2S, EGR, AIR | °C/°F | Varies |
Ignition 1 | Eng 1, EGR, Misfire, IPC, Cat, HO2S, AIR | Volts | Varies |
Ignition Mode | Eng 1 | IC/Bypass | IC |
Injector Pulse Width | Eng 1, Cat, Misfire, HO2S | Milliseconds | Varies (1.5-3.5) |
Knock Retard | Eng 1, EGR | Degrees | 0 |
Long Term FT | Eng 1, EVAP, HO2S, AIR | Percent | 0 |
Loop Status | Eng 1, Cat, HO2S, EVAP, EGR, AIR | Open/Closed | Closed |
MAF | Eng 1, Cat, HO2S, EGR, EVAP, AIR, Misfire | Grams per Second | |
MAF Frequency | Eng 1 | Hz | 1200-3000 (depends on altitude and engine load) |
MAP | Eng 1, EGR, EVAP, Cat | kPa/volts | 20-48 kPa/ 0.75-2 volts (depends on altitude) |
MIL | IPC | On/Off | Off |
MIL | ODD | OK/Fault/Invalid State | OK |
Misfire Current Cyl. 1-6 | Misfire | Counts | 0 |
Misfire History Cyl. 1-6 | Misfire | Counts | 0 |
Non-Volatile Memory | Eng 1, EVAP, IPC, AIR EGR, Cat, HO2S, Misfire, AIR, ODD | Pass/Fail | Pass |
Power Enrichment | Eng 1, Cat, EGR, HO2S, Misfire, | Active/Inactive | Inactive |
Short Term FT | Eng 1, AIR, HO2S | Percent | 0-10 |
Spark | Eng 1, Misfire | Degrees | 20 (varies) |
Start Up ECT | EVAP, HO2S, Cat, AIR | °C/°F | Varies |
Start Up IAT | HO2S, Cat, AIR, EVAP | °C/°F | Varies |
Starter Enable Relay | ODD | Ok/Fault/Invalid State | Ok |
TCC Engaged | Eng 1, EGR, Misfire | Engaged/Disengaged | Disengaged |
TCC Sol. | ODD | OK/Fault/Invalid State | OK |
Total Misfire Current Count | Misfire | Counts | 0 |
Total Misfire Failures | Misfire | Counts | 0 |
Total Misfire Passes Since First Fail | Misfire | Counts | 0 |
TP Sensor | Eng 1, EGR, Cat, HO2S | Volts | 0.20-0.74 |
TP Angle | Eng 1, EGR, Cat, HO2S, Misfire, EVAP, AIR | Percent | 0 |
Traction Control | Eng 1, Misfire | Active/Inactive | Inactive |
Traction Control Desired Torque | Eng 1 | Percent | 100 |
Traction Control Torque | Eng 1 | Percent | Varies by engine load and vehicle speed |
Transmission Range | Eng 1, Cat, EGR | Transmission Gear Position | Park |
TR Switch A | Eng 1 | Low/High | Low |
TR Switch B | Eng 1 | Low/High | High |
TR Switch C | Eng 1 | Low/High | High |
TR Switch Up | Eng 1 | Low/High | Low |
TWC Protection | Cat | Active/Inactive | Inactive |
Vehicle Speed | Eng 1, EGR, Cat, Misfire, EVAP | MPH / Km/h | 0 |
VTD Fuel Disable | Eng 1 | Active/Inactive | Inactive |
