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:
| • | The Diagnostic System Check-Engine Controls is complete. |
| • | No diagnostic trouble codes (DTCs) are set. |
| • | The on-board diagnostics are functioning properly. |
The 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 obtained from a normally running engine.
Important: If a scan tool malfunction is suspected, retest the scan tool on a similar vehicle if possible. A malfunctioning scan tool should not be used. The scan tool problem 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. Refer to Symptoms - Engine Controls for diagnosis if all values fall within the typical range described in the table.
The column labeled Data List indicates where a parameter is located on the scan tool. Refer to the scan tool operating manual for instructions on how to access the individual data lists. The following is a description of each term listed:
| • | ENG1 = Engine Data 1 |
| • | ENG2 = Engine Data 2 |
| • | EGR = EGR Data |
| • | MSF = Misfire Data |
| • | ODM = Output Driver Data |
| • | EVAP = EVAP Data |
| • | FT = Fuel Trim |
| • | ALL = Indicates that the parameter appears in all data lists |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Engine Idling/Radiator Hose Hot/Closed Throttle/Trans in Park/Closed Loop/Accessories Off | |||
1-2 Solenoid Circuit Status | ODM | OK/Fault | OK |
2-3 Solenoid Circuit Status | ODM | OK/Fault | OK |
24X Crank Sensor | ENG2, MSF | RPM | Varies |
AC Relay Circuit Status | ODM | OK/Fault | OK |
A/C High Side Pressure | ENG2 | Volts | Varies |
A/C High Side Pressure | ENG2 | kPa | Varies |
A/C Off For WOT | ENG2 | Yes/No | No |
A/C Pressure Disable | ENG2 | Yes/No | No |
A/C Relay Command | ENG1, ENG2, EGR, MSF | OFF/ON | OFF |
A/C Request Signal | ENG2 | Yes/No | No |
AIR Pump Relay Circuit Status | ODM | OK/Fault | OK, if equipped with AIR |
AIR Pump Relay Command | ENG1, FT | On/Off | Off |
AIR Solenoid Circuit Status | ODM | OK/Fault | OK, if equipped with AIR |
AIR Solenoid Command | ENG1, FT | On/Off | Off |
Air Fuel Ratio | ENG2, FT | : 1 | 14.7 (Varies) |
BARO | ENG1, EGR, EVAP, FT | kPa | Depends on altitude |
CKP Sensor Status | ENG2, MSF | Angle/Time A/Time B | Angle |
CMP Sensor | ENG2, MSF | RPM | Varies |
CMP Sensor Signal Present | ENG2, MSF | Yes/No | Yes |
Crank Request Signal | ENG2 | Yes/No | No |
Cruise Control Active | ENG1 | Yes/No | No |
Cruise Inhibit Reason | ENG1 | -- | Engine Not Running, Vehicle Speed, Engine Run Time, Brakes |
Cruise Inhibit Signal Command | ENG1 | OFF/ON | ON |
Current Gear | ENG1, EGR, FT | 1/2/3/4 | 1 |
Cycles Of Misfire Data | MSF | Counts | Varies |
Cyl. #1 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #2 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #3 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #4 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #5 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #6 IC Circuit Status | ODM | OK/Fault | OK |
Cyl. #1 Injector Ckt. Status | ODM | OK/Fault | OK |
Cyl. #2 Injector Ckt. Status | ODM | OK/Fault | OK |
Cyl. #3 Injector Ckt. Status | ODM | OK/Fault | OK |
Cyl. #4 Injector Ckt. Status | ODM | OK/Fault | OK |
Cyl. #5 Injector Ckt. Status | ODM | OK/Fault | OK |
Cyl. #6 Injector Ckt. Status | ODM | OK/Fault | OK |
Decel Fuel Cutoff | EGR, FT | Active/Inactive | Inactive |
Desired EGR Position | EGR | Volts | Varies |
Desired EGR Position | ENG1, EGR, MSF | % | 0 |
Desired Idle Speed | ENG1, ENG2, EVAP | RPM | Varies |
Driver Module 1 Status | ODM | Enabled/Off - High Volts/Off - High Temp | Enabled |
Driver Module 2 Status | ODM | Enabled/Off - High Volts/Off - High Temp | Enabled |
Driver Module 3 Status | ODM | Enabled/Off - High Volts/Off - High Temp | Enabled |
Driver Module 4 Status | ODM | Enabled/Off - High Volts/Off - High Temp | Enabled |
ECT Sensor | ENG1, ENG2, EGR, MSF, EVAP, FT | °C, °F | Varies |
EGR Flow Test Count | EGR | Counts | 0 |
EGR Learned Minimum Position | EGR | Volts | Varies |
EGR Position Sensor | ENG1, EGR, MSF | % | 0 |
EGR Position Variance | EGR | % | 0 |
EGR Position Sensor | EGR | Volts | Varies |
EGR Solenoid Circuit Status | ODM | OK/Fault | OK |
EGR Solenoid Command | EGR | OK/Fault | OK |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum | No Fault or No Test Result |
EVAP Purge Solenoid | ENG1, EVAP, FT | % | Varies |
EVAP Purge Solenoid Circuit Command | ODM | OK/Fault | OK |
EVAP Test Abort Reason | EVAP | Not Aborted/Lost Enable/Small Leak/Veh. Not At Rest | Not Aborted or Lost Enable |
EVAP Test Result | EVAP | No Result/Passed/Aborted/Fail - DTC P0440/Fail - DTC P0442/Fail - DTC P0446/Fail - DTC P1441 | No Result, Passed, or Aborted |
EVAP Test State | EVAP | Wait For Purge/Test Running/Test Completed | Varies |
EVAP Vent Solenoid Circuit | ODM | OK/Fault | OK |
EVAP Vent Solenoid Command | EVAP, FT | -- | Venting |
Engine Load | ENG1, ENG2, EGR, MSF, EVAP, FT | % | Varies |
Engine Oil Level Switch | ENG2 | OK/Low | OK |
Engine Oil Life Remaining | ENG2 | % | Varies |
Engine Oil Pressure Sensor | ENG2 | Volts | -- |
Engine Run Time | ENG1, ENG2, EGR, MSF, EVAP, FT | Hr: Min: Sec | Varies |
Engine Speed | ENG1, ENG2, EGR, MSF, EVAP, FT | RPM | Varies |
Extended Travel Brake Pedal | ENG2 | Applied/Released | Released |
FC Relay 1 Circuit Status | ODM | OK/Fault | OK |
FC Relay 1 Command | ENG2 | On/Off | Varies |
FC Relay 2 and 3 Circuit | ODM | OK/Fault | OK |
FC Relay 2 and 3 Command | ENG2 | On/Off | Varies |
Fuel Level Sensor | EVAP | Volts | Varies |
Fuel Pump Relay Circuit | ODM | OK/Fault | OK |
Fuel Pump Relay Command | ENG1 | On/Off | On |
Fuel Tank Pressure Sensor | EVAP | mm Hg/in. H2O | Varies |
Fuel Tank Pressure Sensor | EVAP | Volts | Varies |
Fuel Trim Cell | ENG1, EVAP, FT | Cell # | 0 |
Fuel Trim Learn | ENG1, EVAP, FT | Disabled/Enabled | Enabled |
Gen L-Terminal Signal Command | ENG2 | On/Off | On |
Generator F-Terminal Signal | ENG2 | % | Varies |
HO2S 1 | ENG1, FT | Ready/Not Ready | Ready |
HO2S 1 | ENG1, EVAP, FT | mV | Varies |
HO2S 1 Heater Command | FT | On/Off | Off |
HO2S 2 | ENG1, FT | mV | Varies |
IAC Position | ENG1, EGR, FT | Counts | Varies |
IAT Sensor | ENG1, ENG2, EGR, EVAP, FT | °C, °F | Varies |
Ignition 1 Signal | ENG1, ENG2, EGR, EVAP, FT | Volts | 12.5-14.5 |
Ignition Mode | ENG2 | IC/Bypass | IC |
Injector PWM | ENG2, MSF, FT | mS | 2.0-4.0 |
Knock Retard | ENG1, EGR | Degrees | 0 |
Long Term FT | ENG1, ENG2, EVAP, FT | % | Varies |
Loop Status | ENG1, ENG2, EGR, EVAP, FT | Open/Closed | Closed |
MAF Sensor | ENG1, ENG2, EGR, MSF, EVAP, FT | g/s | 2.0-6.0 |
MAF Sensor | ENG2 | Hz | Varies |
MAP Sensor | ENG1, ENG2, EGR, MSF, EVAP, FT | kPa | 29-48 |
MAP Sensor | ENG1, ENG2, | Volts | 1-2 |
MIL Circuit Status | ODM | OK/Fault | OK |
MIL Command | ENG2 | On/Off | Off |
Mileage Since DTC Cleared | ENG2 | km/mi | Varies |
Misfire Current Cyl. #1 | MSF | Counts | 0 |
Misfire Current Cyl. #2 | MSF | Counts | 0 |
Misfire Current Cyl. #3 | MSF | Counts | 0 |
Misfire Current Cyl. #4 | MSF | Counts | 0 |
Misfire Current Cyl. #5 | MSF | Counts | 0 |
Misfire Current Cyl. #6 | MSF | Counts | 0 |
Misfire History Cyl. #1 | MSF | Counts | 0 |
Misfire History Cyl. #2 | MSF | Counts | 0 |
Misfire History Cyl. #3 | MSF | Counts | 0 |
Misfire History Cyl. #4 | MSF | Counts | 0 |
Misfire History Cyl. #5 | MSF | Counts | 0 |
Misfire History Cyl. #6 | MSF | Counts | 0 |
Number of DTCs | ENG1, EVAP, FT | -- | Varies |
O2 Heater Current | Fuel Trim Data | Amps | 0.50-0.60 |
PCM Reset | ENG1, ENG2, EGR, ODM, EVAP, FT | Yes/No | -- |
PCM/VCM in VTD Fail Enable | ENG1 | Yes/No | -- |
Power Enrichment | ENG2, MSF | Active/Inactive | Inactive |
Reduced Engine Power | ENG1, EGR | Active/Inactive | Inactive |
Short Term FT | ENG1, ENG2, EVAP, FT | % | Varies |
Spark | ENG1, ENG2, MSF, FT | Degrees | 20-40 |
Start Up ECT | ENG2, EVAP, FT | °C, °F | Varies |
Start Up IAT | ENG2, EVAP, FT | °C, °F | Varies |
Starter Enable Relay Circuit | ODM | OK/Fault | OK |
Starter Relay Command | ENG2 | On/Off | Off |
TCC Brake Pedal Switch | ENG1, ENG2 | Applied/Released | Released |
TCC Enable Solenoid Command | ENG1, MSF | On/Off | On |
TCC PWM Solenoid Command | ENG2 | On/Off | On |
Traction Control Status | ENG2 | Active/Allowed/ Inhibited/Comm. Link Fail/Trac. PWM Input/Diag. Trac. PWM, and Inactive | Allowed |
TCS Circuit Status | ODM | OK/Fault | OK |
TFP Switch | ENG2, EGR, FT | Park/Neutral/Drive1/Drive2/Drive3/Drive4 | Varies |
TP Sensor | ENG1, ENG2 | Volts | 0.33-1.33 |
TP Sensor | ENG1, ENG2, EGR, MSF, EVAP, FT | % | Varies |
TWC Temperature Calculated | FT | °C/°F | Varies |
Tachometer Circuit Status | ODM | OK/Fault | OK |
VTD Auto. Learn Timer | ENG1 | Active/Inactive | Inactive |
VTD Fuel Disable | ENG1 | Active/Inactive | Inactive |
VTD Fuel Disable Until | ENG1 | Yes/No | -- |
Vehicle Speed Sensor | ENG1, ENG2, EGR, MSF, EVAP, FT | km/h/mph | 0 |
