The Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order.
Use the Engine Scan Tool Data List only after performing the following inspections:
| • | A Diagnostic System Check-Engine Controls is completed. |
| • | No Diagnostic Trouble Codes (DTCs) are present. |
| • | On-board diagnostics are functioning properly. |
The scan tool values from a correctly operating engine may be used for comparison with the engine you are diagnosing. The values listed in the following table represent typical values that would be seen on a good 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 .
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Engine Idling/Upper Radiator Hose Hot/Closed Throttle/Transmission in Park or Neutral/Closed Loop | |||
A/C Relay Command | Engine Data | On/Off | Off |
BARO | Engine Data | kPa | 89 to 99 kPa (varies with the barometric pressure and altitude) |
Battery Voltage | Engine Data | Volts | 14 Volts |
Calculated IAC Air Flow | Engine Data | L/Min/FT3/Min | 110 to 155 L/Min / 3.9-5.5 FT3/Min |
CMP Active Counter | Engine Data | Counts | Varies |
Decel. Fuel Cutoff | Engine Data | Active/Inactive | Inactive |
Desired Idle Speed | Engine Data | RPM | 750 RPM |
Engine Speed | Engine Data | RPM | 725 to 775 RPM |
ECT Sensor | Engine Data | C°/F° | 80-90°C / 176-194°F |
Engine Load | Engine Data | % | 10 to 18% |
EVAP Density Trim | Engine Data | Counts | Varies |
EVAP Purge Solenoid Command | Engine Data | % | 0% |
EVAP Tank Pres. Control Sol. | Engine Data | On/Off | On |
EVAP Vent Solenoid Command | Engine Data | Venting/Not Venting | Venting |
EGR Solenoid Command | Engine Data | % | 0% |
Fan Request | Engine Data | Yes/No | No |
Fuel Level | Engine Data | % | Varies with the fuel level |
Fuel Pump Relay Command | Engine Data | On/Off | On |
Fuel Tank Pressure Sensor | Engine Data | mmHg/in of Hg | Varies |
High Electrical Load | Engine Data | Yes/No | No |
HO2S 1 | Engine Data | mV | 35 to 950 mV |
HO2S 1 | Engine Data | Yes/No | Yes |
HO2S 2 | Engine Data | mV | 35 to 950 mV |
HO2S 2 | Engine Data | Yes/No | Varies |
IAC Motor Command | Engine Data | % | 17% to 30% |
IAT Sensor | Engine Data | C°/F° | Varies with the underhood and ambient temperature |
Injector 1 Command | Engine Data | ms | 2.7-4.3 ms |
Long Term FT | Engine Data | % | Around 0% |
Loop Status | Engine Data | Open/Closed | Closed Loop |
MAF Sensor | Engine Data | g/s | 1.1 to 2.9 g/s |
MAP Sensor (pressure) | Engine Data | kPa | 26 to 51 kPa (varies with barometric pressure and altitude) |
MAP Sensor (voltage) | Engine Data | Volts | 1.30 to 1.90 Volts (varies with barometric pressure and altitude) |
Power Steering Switch | Engine Data | Normal/High Pressure | Normal when steering wheel stationary |
Short Term FT | Engine Data | % | Around 0% |
Spark | Engine Data | degrees | 12-16° |
Starter Switch | Engine Data | Released/Cranking | Released |
Total Fuel Trim Average | Engine Data | % | Around 0% |
TP Sensor | Engine Data | Volts | 0.50 to 0.80 Volts |
TP Angle | Engine Data | % | 0% |
Vehicle Speed | Engine Data | km/h/MPH | 0 km/h |
