The Engine 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 Engine Scan Tool Data List only after the following is determined:
| • | Powertrain On Board Diagnostic 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 Engine 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:
Eng 1: Engine Data 1 ListEGR: Exhaust Recirculation Valve Data
EVAP: Evaporative Emissions Data
Cat: Exhaust Catalyst Data
HO2S: Heated Oxygen Sensor Data
IPC: Instrument Panel Cluster
Misfire: Cylinder Misfire Data
ODD: 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 | Misfire | RPM | Varies |
1-2 Solenoid | ODD | OK/Fault/Invalid State | OK |
2-3 Solenoid | ODD | OK/Fault/Invalid State | OK |
Abuse Management | Misfire | Active/Inactive | Inactive |
A/C High Side Pressure | Eng 1 | Volts/psi/kPa | Varies |
A/C Pressure Disable | Eng 1 | Yes/No | No |
A/C Relay | ODD | OK/Fault/Invalid State | OK |
A/C Request | Eng 1, Misfire, EGR | Yes/No | No |
Actual EGR Position | Eng 1, EGR, Misfire | % | 0 |
Air Fuel Ratio | Cat, HO2S, AIR | Ratio | 14.7:1 |
AIR Pump Relay | AIR, Eng 1, HO2S | On/Off | Off |
AIR Active Test AIR Injection | AIR | Yes/No | No |
AIR Active Test Inhibit | AIR | Yes/No | Yes |
AIR Active Test Passed | AIR | Yes/No | Yes |
AIR Diagnostic Complete | AIR | Yes/No | Yes |
AIR Passive Test 1 Passed | AIR | Yes/No | Yes |
AIR Passive Test 2 Failed | AIR | Yes/No | No |
Air Passive Test Passed | AIR | Yes/No | Yes |
AIR Passive Test in Progress | AIR | Yes/No | No |
AIR Passive Test Inhibited | AIR | AIR | Yes |
AIR Pump Relay | AIR, ODD | OK, Fault, Invalid State | OK |
AIR Solenoid | AIR, Eng 1, HO2S | On/Off | Off |
AIR Solenoid | AIR, ODD | OK, Fault, Invalid State | OK |
Brake Switch | Eng 1 | Applied/Released | Released |
BARO | Eng 1, EGR, EVAP, Cat | kPa/Volts | 65-110 kpa / psi/3.5-4.8 Volts |
Cam Signal Present | Misfire | Yes/No | Yes |
Commanded A/C | Eng 1, Cat, Misfire | On/Off | Off |
Command Fuel Pump | Eng 1 | On/Off | On |
Commanded Gen | IPC | On/Off | On |
Cruise Mode | Eng 1 | On/Off | Off |
Cruise Inhibited | Eng 1 | Yes/No | Yes |
Cruise Inhibited | ODD | OK, Fault, Inactive State | OK |
Current Gear | CAT, EGR | Transmission Gear Position | 1 (Park) |
Cycles Of Misfire Data | Misfire | Counts | Cycles 0-99 |
Cyl. 1-6 Ckt. History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Cyl. 1-6 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 | % | 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 | AIR, Eng 1, EGR, EVAP, Cat, HO2S, Misfire | °C/°F | Varies |
EGR Closed Valve Pintle | EGR | Volts | 0.14-1.0 |
EGR Duty Cycle | EGR | % | 0 |
EGR Feedback | EGR | Volts | 0.14-1.0 |
EGR Flow Test Count | EGR | Counts | 0-10 |
EGR Position Error | EGR | % | 0-100 |
Engine Load | AIR, Eng 1, Cat, Misfire, Evap | % | Varies |
Engine Oil Level | IPC | Low/OK | OK |
Engine Oil Life | IPC | % | 0-100 |
Engine Oil Pressure | IPC | Low/OK/High | OK |
Engine Run Time | AIR, Eng 1, EVAP, EGR, Cat, HO2S | Hr: Min: Sec | Varies |
Engine Speed | Eng 1, EGR, EVAP, Cat, HO2S, Misfire | RPM | Varies |
EVAP Canister Purge | AIR, Eng 1, EVAP, HO2S | % | Low and Varying |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum | No Fault |
EVAP Purge Solenoid | Evap, ODD | OK/Fault/Invalid State | OK |
EVAP Vent Solenoid | Eng 1, EVAP, HO2S | Open/Closed | Varies |
EVAP Vent Solenoid | 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 | % | 0-100 |
Fuel Pump | Eng 1 | On/Off | On |
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 Hg/Volts | Varies |
Fuel Trim Cell | AIR, Eng 1, CAT | 0-4 | 0 |
Fuel Trim Learn | Eng 1, Cat, EVAP | Enabled/Disabled | Varies |
Generator PWM | IPC | % | Varies |
HO2S Sensor 1 | Eng 1, CAT, HO2S | Ready/Not Ready | Ready |
HO2S Sensor 1 | AIR, CAT, Eng 1, HO2S, Misfire | millivolts | 0-1000 and Varying |
HO2S Sensor 2 | Eng 1, Cat, HO2S | millivolts | 0-1000 and Varying |
HO2S XCounts | Eng 1, HO2S | Counts | Varies |
Hot Mode | Misfire | On/Off | Off |
Hot Open Loop | Cat | Active/Inactive | Inactive |
IAC Position | ENG 1, CAT | Counts | Varies |
IAT | AIR, Eng 1, EGR, EVAP, Cat, HO2S | °C/°F | Varies |
Ignition 1 | AIR, Eng 1, EGR, CAT, HO2S, IPC, Misfire | Volts | 9.6-14.5 |
Ignition Mode | Eng1 | IC/Bypass | IC |
Injector Pulse Width | Eng 1, Cat, HO2S, Misfire | milliseconds | Varies (1.5-3.5) |
Knock Retard | Eng 1, EGR | Degrees | 0 |
Long Term FT | AIR, Eng 1, EVAP, HO2S, Misfire | % | -10-10 |
Loop Status | AIR, Eng 1, EGR, EVAP, Cat, HO2S | Open/Closed | Closed |
MAF | AIR, Eng 1, EGR, EVAP, Cat, HO2S, Misfire | Grams per Second | 3-6 (depends on altitude) |
MAF Frequency | Eng 1 | Hz | 1200-3000 (depends on altitude) |
MAP | Eng 1, Cat, EGR, EVAP | 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 | AIR, Cat, Eng 1, EGR, EVAP, Misfire, ODD, HO2S, IPC | Pass/Fail | Pass |
Power Enrichment | Cat, EGR, HO2S, Misfire | Active/Inactive | Inactive |
Short Term FT | AIR, Eng 1, HO2S | % | -10-10 |
Spark | Eng 1, Misfire | Degrees | Varies |
Start Up ECT | AIR, Cat, EVAP, HO2S | °C/°F | Varies |
Start Up IAT | AIR, Cat, EVAP, HO2S | °C/°F | Varies |
TCC Engaged | Eng 1, EGR, Misfire | Engaged/Disengaged | Disengaged |
TCC Solenoid | ODD | OK/Fault/Invalid State | OK |
Total Misfire Current Count | Misfire | Counts | 0 |
Total Misfire Failures Since First Fail | Misfire | Counts | 0 |
Total Misfire Passes Since First Fail | Misfire | Counts | Varies |
TP Sensor | Eng 1 | Volts | 0.5-0.9 |
TP Angle | AIR, Cat, EGR, Eng 1, EVAP, HO2S, Misfire | % | 0 |
Traction Control | Eng 1, Misfire | Active/Inactive | Inactive |
Traction Control Desired Toque | Eng 1 | % | 100 |
Traction Control Torque | Eng 1 | % | 80-90 (varies) |
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 P | Eng 1 | Low/High | Low |
TWC Protection | EGR, Cat | Active/Inactive | Inactive |
Vehicle Speed | Eng 1, EGR, EVAP, Cat, Misfire | MPH/Km/h | 0 |
VTD Fuel Disable | Eng 1 | Active/Inactive | Inactive |
