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 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 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.Eng 1: Engine Data 1 List
Eng 2: Engine Data 2 List
EGR: Exhaust Gas Recirculation (EGR) Data
EE: Enhanced Evaporative Emission (EVAP) Data
FF/FR: Freeze Frame/Failure Records
FT: Fuel Trim Data List
MF: Misfire Data List
CC: Cruise Control Data List
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off | |||
|---|---|---|---|
Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
A/C Clutch Feedback Signal | Eng 2 | Yes/No | No |
A/C Compressor Cycling Switch | Eng 2 | Open/Closed | Closed |
A/C Relay Command | Eng 1, 2, EGR, MF | On/Off | Off |
A/C Request Signal | Eng 2 | Yes/No | No |
A/C Sec. High Pressure Switch | Eng 2 | Open/Closed | Open |
Air Fuel Ratio | FF, FR | Ratio | 14.7:1 |
AIR Pump Relay Command (w/NC1) | Eng 1, FT | On/Off | Off |
BARO | Eng 1, EE, EGR, FT, FF/FR | kPa/volts | 65-104 kPa/3.5-4.9 Volts Varies w/Altitude |
Brake Pedal Switch | Eng 1, 2, CC | Applied/Released | Released |
CMP Sensor-High to Low | Eng 2 | Counts | Varies |
CMP Sensor-Low to High | Eng 2 | Counts | Varies |
Coolant Level Switch | Eng 2 | Yes/No | No |
Cruise Control Active | Eng 1 | Yes/No | No |
Cruise Disengage 1 History | CC | Varies | Varies |
Cruise Disengage 2 History | CC | Varies | Varies |
Cruise Disengage 3 History | CC | Varies | Varies |
Cruise Disengage 4 History | CC | Varies | Varies |
Cruise Disengage 5 History | CC | Varies | Varies |
Cruise Disengage 6 History | CC | Varies | Varies |
Cruise Disengage 7 History | CC | Varies | Varies |
Cruise Disengage 8 History | CC | Varies | Varies |
Cruise Inhibit Signal Command | Eng 1 | Varies | Varies |
Cruise On/Off Switch | CC | On/Off | Off |
Cruise Control Release Brake Pedal Switch | CC | On/Off | Off |
Cruise Resume/Accel Switch | CC | Resume/Accel | Resume |
Cruise Set/Coast Switch | CC | Set/Coast | Coast |
Current Gear | Eng 1, 2, EGR, FT, FF/FR | 0-4 | 1 |
Cycles of Misfire Data | MF | 0-100 Counts | Varies |
Desired EGR Position | Eng 1, EGR, MF, FF/FR | 0-100% | 0% |
Desired EGR Position | EGR | 0-5 volts | Less than 1.3 volts |
Desired IAC Airflow | Eng 1 | 0-64 g/s | Varies |
Desired Idle Speed | Eng 1, Eng 2, EE, FF/FR | RPM | PCM Controlled |
DTC Set This Ignition | Eng 1, 2, CC, EE, FT | Yes/No | No |
ECT Sensor | Eng 1, Eng 2, EE, EGR, FT, MF, FF/FR | -39° to +140°C (-38° to +284°F) | 88-105°C (190-221°F) |
EGR Learned Minimum POS | EGR | 0-5.0 volts | Less than 1.3 volts |
EGR Position Sensor | Eng 1, EGR, FF/FR, MF | 0-5.0 volts | Less than 1.3 volts |
Engine Load | All | 0-100% | 1-4% @ Idle 7-9% @ 2500 RPM |
Engine Oil Level Switch | Eng 2 | Yes/No | Yes |
Engine Oil Life Remaining | Eng 2 | 0-100% | Varies |
Engine Run Time | All | Hrs, Min, Sec | Varies |
Engine Speed | All | 0-10,000 RPM | 500-700 RPM |
EVAP Purge Solenoid Command | Eng 1, EE, FT | 0-100% | 10-25% |
EVAP Test Abort Reason | EE | Varies | Varies |
EVAP Test Result | EE | Test Result | Varies |
EVAP Test State | EE | Test State | Varies |
EVAP Vent Solenoid Command | Eng 1, EE, FT | Not Venting/Venting | Venting |
Fail Counter | FF, FR | Counts | Varies |
Fuel Level Sensor Rear Tank | Eng 1, 2, EE | 0-5 volts | 0.7-2.5 volts |
Fuel Tank Level Remaining | EE | Gallon/Liter | Varies |
Fuel Tank Level Remaining | EE | 0-100% | Varies |
Fuel Tank Pressure | Eng 1, EE | -32.7 to +14.0 mm/Hg (-17.5 to +7.5 in/H2O) | Varies |
Fuel Tank Pressure | EE | 0-5.0 volts | Varies |
Fuel Tank Rated Capacity | EE | 98 Liters (25.9 Gallons) or 128 Liters (34 Gallons) | Varies with fuel tank option |
Fuel Trim Cell | Eng 1, EE, FT | 0-23 | 16, 17 |
Fuel Trim Learn | Eng 1, EE, FT | Enabled/Disabled | Enabled (may Toggle) |
Generator F Terminal Signal | Eng 2 | Percent | Varies |
Generator L Terminal Signal Command | Eng 2 | Active/Inactive | Active |
HO2S Bank 1 Sensor 1 | Eng 1, EE, FT | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 1 Sensor 2 | Eng 1, FT | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 2 Sensor 1 | Eng 1, EE, FT | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 2 Sensor 2 | Eng 1, FT | Millivolts | 10-1,000 mV and Varying |
Fuel Level Sensor | Eng 1, 2, EE | 0-5 volts | 0.7-2.5 volts |
IAC Position | Eng 1, EGR FT | Counts | Varies |
IAT Sensor | Eng 1, Eng 2, EE, EGR, FT | -39 to +140°C (-38 to +284°F) | 35°C (91°F) Depends on ambient temperature |
Ignition 1 Signal | Eng 1, Eng 2, CC, EE, EGR, FT | 0-25 volts | 11.5-14.5 Volts |
Inj. PWM Bank 1 Average | Eng 2, FT, FF/FR, MF | Milliseconds | 2-6 |
Inj. PWM Bank 2 Average | Eng 2, FT, FF/FR, MF | Milliseconds | 2-6 |
Knock Retard | Eng 1, EGR | 0-16° | 0° |
Long Term FT Avg. Bn1 | Eng1, 2, FT | Percentage | Near 0% |
Long Term FT Avg. Bn2 | Eng1, 2, FT | Percentage | Near 0% |
Long Term FT Bank 1 | Eng 1, Eng 2, EE, FT, FF/FR | Percentage | Near 0% |
Long Term FT Bank 2 | Eng 1, Eng 2, EE, FT, FF/FR | Percentage | Near 0% |
Loop Status | Eng 1, 2, EE, EGR, FT, FF/FR | Open/Closed | Closed |
Low Oil Lamp Command | Eng 2 | On/Off | Off |
MAF Sensor | All | Grams Per Seconds (g/s) | 1-9 g/s @ Idle (depends on altitude) 15-26 g/s @ 2,500 RPM (depends on altitude) |
MAF Sensor | Eng 2 | 0-31,999 Hz | 2,000-3,000 Hz |
MAP Sensor | All | kPa | 20-48 kPa |
MAP Sensor | Eng 1, Eng 2 | Volts | 1.0-2.0 volts Varies with altitude |
MIL Command | Eng 2 | Off/On | Off |
Mileage Since DTC Cleared | Eng 2 | km/miles | Varies |
Misfire Current Cyl. 1-8 | MF | 0-200 Counts | 0 |
Misfire History Cyl. 1-8 | MF | 0-65,535 Counts | 0 |
Not Run Counter | FF, FR | Counts | Varies |
Pass Counter | FF, FR | Counts | Varies |
PCM Reset | Eng 1, Eng 2, EGR, EVAP, FT | Yes/No | No |
PCM/VCM in VTD Fail Enable | Eng 1 | Yes/No | No |
Reduced Engine Power | Eng 1, EGR | Yes/No | No |
Short Term FT Bn1 Average | Eng 2, FT | Percentage | Near 0% |
Short Term FT Bn2 Average | Eng 2, FT | Percentage | Near 0% |
Short Term FT Bank 1 | Eng 1, Eng 2, EE, FT, FF/FR | Percentage | Near 0% |
Short Term FT Bank 2 | Eng 1, Eng 2, EE, FT, FF/FR | Percentage | Near 0% |
Spark | Eng 1, Eng 2, FT, MF | Degrees | 15°-20° |
Start Up ECT | Eng 2, EE, FT, FF/FR | C°/F° | Varies |
Stoplamp Pedal Switch | Eng 2, TAC, FF/FR | Applied/Released | Released |
TCC Enable Solenoid Command | Eng 1, Eng 2, MF, FF/FR | Enabled/Disabled | Disabled |
TCC PWM Solenoid Command | Eng 2 | Percentage | 0% |
TFP Sw. | Eng 2, EGR, FT | Transmission Gear Position | Varies |
TP Desired Angle | Eng 1, Eng 2, EE, EGR | 0-100% | 0% |
TP Indicated Angle | All | 0-100% | 0% |
TP Sensor | Eng 1, 2 | Volts | 0.4-0.9 volts |
TP Sensor | Eng 1, 2, EGR, FT, MF, EE | Volts | 0.4-0.9 volts |
TR Switch | Eng 2, EGR, FT | Transmission Gear Position | Varies |
Vehicle Speed Sensor | All | km/h/mph | 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 |
Warm-Ups w/o Emission Faults | Eng 2 | 0-255 Counts | Varies |
Warm-Ups w/o Non-Emission Faults | Eng 2 | 0-255 Counts | Varies |
