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 Engine Controls 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 - Engine Controls 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 1Eng 2: Engine Data 2
EGR: EGR Data
EVAP: EVAP Data
FUEL TRIM: Fuel Trim Data
Misfire: 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 | Eng 2 | RPM | Varies |
18X Crank Sensor | Eng 2 | RPM | Varies |
1-2 Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
2-3 Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
A/C High Side Pressure | Eng 2 | kPa/PSI/Volts | Varies |
A/C Off For WOT | Eng 2 | Yes/No | No |
A/C Pressure Disable | Eng 2 | Yes/No | No |
A/C Relay Command | Eng 1, 2, Misfire, EGR | On/Off | Off |
A/C Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
A/C Request Signal | Eng 2 | Yes/No | No |
Air Fuel Ratio | Eng 2, Fuel Trim | Ratio | 14.2:1-14.7:1 |
AIR Pump Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
AIR Pump Relay Command | Eng 1, Fuel Trim | ON/OFF | OFF |
AIR Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
AIR Solenoid Command | Eng 1, Fuel Trim | ON/OFF | OFF |
BARO | Eng 1, EGR, EVAP, Fuel Trim | kPa | 65-110 kPa |
Boost Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
Boost Solenoid Command | Engine 2 | Percent | 100% |
CMP Sensor Signal Present | Eng 2 | Yes/No | Yes |
Cruise Control Active | Eng 1 | Yes/No | No |
Cruise Inhibit Reason | Eng 1 | Vehicle Speed/ Brake/Clutch | Vehicle Speed |
Cruise Inhibit Signal Circuit Status | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Cruise Inhibit Signal Command | Eng 1 | On/Off | On |
Current Gear | Eng 1, Eng 2, EGR, Fuel Trim | Transmission Gear Position | 1 |
Cycles of Misfire Data | Misfire | Counts | 0-99 |
Cyl. 1-6 Injector Circuit History Status | ODD | OK | OK |
Cyl. 1-6 Injector Circuit Status | ODD | OK/Stuck Low (open)/Stuck High | OK |
Decel Fuel Cutoff | EGR, fuel Trim | Active/Inactive | Inactive |
Desired EGR Position | Eng 1, 2, EGR, Misfire | Percent | 0 |
Desired EGR Position | EGR | Volts | 0 |
Desired Idle Speed | Eng 1, 2, EVAP | 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, 2, EGR, EVAP, Misfire, Fuel Trim | °C/°F | Varies |
EGR Flow Test Count | EGR | Counts | 0-12 |
EGR Learned Minimum Position | EGR | Volts | 0.14-1.0 |
EGR Position Sensor | Engine 1, EGR, Misfire | Percent | Varies |
EGR Position Sensor | EGR | Volts | Varies |
EGR Position Variance | EGR | Percent | 0 |
EGR Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
EGR Solenoid Circuit History | ODD | OK/Fault/Invalid State | OK |
EGR Solenoid Command | EGR | Percent | 0 |
Engine Load | Eng 1, 2, Misfire, Fuel Trim, EVAP, EGR | Percent | 0-100 (Varies) |
Engine Oil Level Switch | Eng 2 | OK/Low | OK |
Engine Oil Life Remaining | Eng 2 | Percent | 0%-100% (Varies) |
Engine Oil Pressure Switch | Eng 2 | Low/OK | OK |
Engine Run Time | Engine 1, 2, EVAP, Misfire, Fuel Trim, EGR | Hr: Min: Sec | Varies |
Engine Speed | Eng 1, 2, EGR, EVAP, Misfire, Fuel Trim | RPM | Varies |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum/No Test Result | No Fault |
EVAP Purge Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
EVAP Purge Solenoid Command | Eng 1, EVAP, Fuel Trim | Percent | Varies |
EVAP Test Abort Reason | EVAP | Not Aborted/Lost Enable/Small Leak/Vehicle Not At Rest | Not Aborted |
EVAP Test Result | EVAP | No Result/Passed/Aborted/Fail DTCXXXX | Passed |
EVAP Test State | EVAP | Wait For Purge/Test Running/Test Completed | Test Completed |
EVAP Vent Solenoid Command | Engine 1, EVAP, Fuel Trim | Venting/Not Venting | Venting |
EVAP Vent Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 1 Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 1 Command | Eng 2 | On/Off | Off |
FC Relay 2 and 3 Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 2 and 3 Command | Eng 2 | On/Off | Off |
Fuel Pump Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
Fuel Pump Relay Circuit History Status | ODD | OK/Fault/Invalid State | OK |
Fuel Pump Relay Command | Eng 1, 2 | On/Off | On |
Fuel Tank Level Remaining | EVAP | Percent | 0-104 |
Fuel Tank Pressure Sensor | Engine 1, EVAP | mm Hg/in H2O | Varies |
Fuel Tank Pressure Sensor | EVAP | Volts | Varies |
Fuel Trim Cell | EVAP, Eng 1, Fuel Trim | 0-4 | 0 |
Fuel Trim Learn | Eng 1, EVAP, Fuel Trim | Enabled/Disabled | Enable |
GEN F-Terminal Signal | Eng 2 | Percent | Varies |
GEN L-Terminal Signal Command | Eng 2 | On/Off | ON |
HO2S 1 | EVAP, Eng 1, Fuel Trim | millivolts | 0-1,000 and Varying |
HO2S 2 | Eng 1, Fuel Trim | millivolts | 0-1,000 and Varying |
IAC Position | Eng 1, EGR, Fuel Trim | Counts | 10-60 |
IAT Sensor | Eng 1, 2, EVAP, EGR, Fuel Trim | °C/°F | Varies |
Ignition 1 Signal | EVAP, Eng 1, 2, EGR, Fuel Trim | Volts | Varies |
Ignition Mode | Eng 2 | IC/Bypass | IC |
Injector PWM | Eng 2, Fuel Trim, Misfire | milliseconds | Varies (1.5-3.5) |
Knock Retard | Eng 1, EGR | Degrees | 0 |
Long Term Fuel Trim | Eng 1, 2, EVAP, Fuel Trim | Percent | -10% to 10% |
Loop Status | Eng 1, 2, Fuel Trim, EVAP, EGR | Open/Closed | Closed |
MAF Sensor | Eng 1, 2, EGR, Misfire, EVAP, Fuel Trim | Grams per Second | 3-6 (depends on altitude) |
MAF Sensor | Eng 2 | Hz | 1,200-3,000 (depends on altitude) |
MAP Sensor | Eng 1, 2 | Volts | 0.4-2.0 Volts |
MAP Sensor | Eng 1, 2, EVAP, Fuel Trim, Misfire, EGR | kPa | 20-48 kPa (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 | 0-4 |
Misfire History Cyl. 1-6 | Misfire | Counts | 0-4 |
Number of DTCs | Eng 1, EVAP, Fuel Trim | # | 0 |
PCM/VCM in VTD Fail Enable | Eng 1 | YES/NO | NO |
Power Enrichment | Eng 2, Misfire, | Active/Inactive | Inactive |
Short Term FT | Eng 1, 2, EVAP, Fuel Trim | Percent | -10 to 10 |
Spark | Eng 1, 2, Misfire, Fuel Trim | Degrees | 22 (Varies) |
Starter Enable Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
Starter Relay Command | Eng 2 | YES/NO | NO |
Start Up ECT | EVAP, Fuel Trim | °C/°F | Varies |
Start Up IAT | EVAP, Fuel Trim | °C/°F | Varies |
TCC Brake Pedal Switch | Eng 1, 2 | Applied/Released | Released |
TCC PWM Solenoid Command | Eng 2 | On/Off | Off |
TCS Circuit Status | ODD | OK/Fault/Invalid State | OK |
TCS Circuit History | ODD | OK/Fault/Invalid State | OK |
TFP Switch | Eng 2, EGR, Fuel Trim | Park/Neutral/Drive 1/Drive 2/Drive 3/Drive 4/Reverse | Park/Neutral |
TP Sensor | Eng 1, 2, EGR, Fuel Trim, EVAP, Misfire | Percent | 0 |
TP Sensor | Eng 1, 2 | Volts | 0.2-0.8 |
Traction Control Status (If Equipped) | Eng 2 | Active/Inactive | Inactive |
Torque Request Signal (If Equipped) | Eng 2 | Percent | 100% |
Torque Delivered Signal (If Equipped) | Eng 2 | Percent | Varies |
Vehicle Speed Sensor | Eng 1, 2, EGR, EVAP, Fuel Trim, Misfire | MPH/Km/h | 0 |
VTD Auto. Learn Timer | Eng 1 | Active/Inactive | Inactive |
VTD Fuel Disable | Eng 1 | Active/Inactive | Inactive |
VTD Fuel Disable Until Ign. Off | Eng 1 | Yes/No | No |
