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 - Vehicle is completed. |
| • | No 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 normal running engine.
Important: A scan tool that displays faulty data 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. If all values are within the typical range described below, refer to Symptoms - Engine Controls 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:
All: The Parameter is in all of the data lists indicated below.ED: Engine Data
EVAP: EVAP Data
FT: Fuel Trim Data List
MF: Misfire Data List
TAC: Throttle Actuated Control Data List
HO2S: HO2S Data
ID: Ignition Data
Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off | |||
A/C Relay Command | ED, MF, TAC | On/Off | Off |
Air Fuel Ratio | ED, FT, HO2S | Ratio | 14.7:1 |
APP Indicated Angle | ED, EVAP, FT, HO2S, MF, TAC, ID | 0-96% | 0% |
APP Sensor 1 | TAC | %/Volts | 0%/1.02 Volts |
APP Sensor 1 | TAC | Degrees | 0% |
APP Sensor 2 | TAC | %/Volts | 0%/4.04 Volts |
APP Sensor 2 | TAC | Degrees | 0% |
APP Sensor 1 and 2 | TAC | Agree/Disagree | Agree |
BARO | ED, EVAP, FT, HO2S, ID | kPa | 65-104 kPa/ Varies w/Altitude |
Catalytic Converter Protection Active | FT, HO2S | Yes/No | No |
CKP Resync Counter | ID | Counts | -- |
CKP Sensor | ED, ID | RPM | -- |
CMP Active Counter | ID | 1-250 | 9-250 |
Cold Start-Up | ED, EVAP | Varies | Varies |
Cruise Control Active | ED, TAC | -- | -- |
Cycles of Misfire Data | MF | 0-100 Counts | Varies |
Decel Fuel Cutoff | ED, FT, HO2S | Active/Inactive | Inactive |
Desired Idle Speed | ED, EVAP, TAC | RPM | PCM Controlled |
Engine OFF Time | EVAP | -- | -- |
ECM Reset | ED, EVAP, ID | -- | -- |
ECT Sensor | ED, EVAP, FT, HO2S, ID, MF, TAC | -40 to -40°C (+151 to +303°F) | 88-105°C (190-221°F) Depends on ambient temperature |
Engine OFF Time | EVAP | -- | -- |
Engine Load | ED, EVAP, FT, HO2S, ID, MF, TAC | 0-100% | 23-24% @ Idle 7-42% @ 2500 RPM |
Engine Oil Level Switch | ED | -- | -- |
Engine Oil Pressure Switch | ED, MF | OK/Low | OK |
Engine Run Time | ED, EVAP, HO2S, ID, MF, FT, TAC | Hrs, Min, Sec | Varies |
Engine Speed | ED, EVAP, FT, HO2S, ID, MF, TAC | 0-10,000 RPM | 500-700 RPM |
EVAP Purge Solenoid Command | ED, EVAP, FT, HO2S | 0-100% | 10-30% |
EVAP Vent Solenoid Command | ED, EVAP | Not Venting/Venting | Venting |
Fuel Level Sensor | EVAP | -- | -- |
Fuel Tank Level Remaining | ED | Liters | Varies |
Fuel Tank Pressure Sensor | ED, EVAP | mm/Hg / In H2O | Varies |
Fuel Tank Pressure Sensor | EVAP | mm/Hg / In H2O/Volts | Varies |
Fuel Trim Cell | ED, EVAP, FT | 0-23 | 16, 17, 21 |
Fuel Trim Learn | ED, EVAP, FT | Able/Disable | Disabled |
Fuel Pump Relay Command | ED, FT | On/Off | On |
HO2S 1 | ED, EVAP, FT, HO2S | mV | 10-1,000 mV and Varying |
HO2S 2 | ED, FT, HO2S | mV | 10-1,000 mV and Varying |
HO2S 1 Heater Current | HO2S | Amps | Varies |
HO2S 2 Heater Current | HO2S | Amps | Varies |
Hot Open Loop | FT, HO2S | -- | -- |
IAT Sensor | ED, EVAP, FT, ID, MF, HO2S, TAC | -40 to +151°C (-40 to +303°F) | Depends on ambient temperature |
Ignition Accessory Signal | ED, TAC | On/Off | Off |
Ignition 1 Signal | ED, EVAP, FT, HO2S, ID, MF, TAC | 0-25 volts | 11.5-14.5 Volts |
Injector PWM | ED, FT, HO2S | Milliseconds | 2-6 ms |
Long Term FT | ED, EVAP, FT, HO2S | % | Near 0% |
Loop Status | ED, EVAP, FT, HO2S | Open/Closed | Closed |
MAF Sensor | ED, EVAP, FT, MF, HO2S | Hz | Hz |
MAF Sensor | ED, EVAP, FT, MF, HO2S, ID, TAC | g/s | Varies |
MAP Sensor | ED | Volts | -- |
MAP Sensor | ED, EVAP, FT, HO2S, ID, MF, TAC | kPa | 20-48 kPa |
MIL Command | ED, EVAP, ID | Off/On | Off |
MIL Requested By DTC | ED, EVAP, ID | -- | -- |
Misfire Current Cyl #1 | MF | Varies | 0 |
Misfire Current Cyl #2 | MF | Varies | 0 |
Misfire Current Cyl #3 | MF | Varies | 0 |
Misfire Current Cyl #4 | MF | Varies | 0 |
Misfire History Cyl #1 | MF | Varies | 0 |
Misfire History Cyl #2 | MF | Varies | 0 |
Misfire History Cyl #3 | MF | Varies | 0 |
Misfire History Cyl #4 | MF | Varies | 0 |
Power Enrichment | ED, FT, HO2S, MF | Active/Inactive | Inactive |
Reduced Engine Power | TAC | Active/Inactive | Inactive |
Short Term FT | ED, EVAP, FT, HO2S | % | Near 0% |
Spark | ED, FT, HO2S, ID, MF | Degrees | 11-20° |
Start Up ECT | EVAP, FT, HO2S | °C/°F | Varies |
Start Up IAT | EVAP, FT, HO2S | °C/°F | Varies |
Stoplamp Pedal Switch | ED, TAC | -- | -- |
TAC Forced Engine Shutdown | TAC | -- | -- |
TAC Motor | TAC | -- | -- |
TCC Cruise Brake Pedal | ED, TAC | -- | -- |
Total Knock Retard | ID | Agrees | -- |
Total Misfire Count | MF | Count | 0 |
Torque Delivered Signal | TAC | N·m | Varies |
TP Indicated Angle | ED, EVAP, FT, HO2S, ID, MF, TAC | % | 4.2% |
TP Sensors 1 and 2 | TAC | Agree/Disagree | Agree |
TP Sensor 1 | TAC | 0-100% | 4% |
TP Sensor 2 | TAC | 0-100% | 4% |
TP Sensor 1 | TAC | 0-5.0 volts | 4.24 volts |
TP Sensor 2 | TAC | 0-5.0 volts | 0.78 volts |
Traction Control Status | TAC | Active/Inactive | Inactive |
TWC Temperature Calculated | MF, FT | C/F | 350°C |
Vehicle Speed Sensor | ED, EVAP, HO2S, ID, MF, FT, TAC | km/h mph | 0 |
Wide Open Throttle | TAC | -- | -- |
