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 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 conditions are determined:
| • | The Diagnostic System Check - Engine Controls is completed. |
| • | There are no diagnostic trouble codes (DTCs). |
| • | The on-board diagnostics are functioning correctly. |
Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine.
Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in misdiagnosis and unnecessary parts replacement.
Only the parameters listed below are referenced in this service information for use in diagnosis.
The column labeled Data List indicates where a parameter is located on the scan tool. Review 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 data lists indicated below.Eng 1: Engine Data 1
Eng 2: Engine Data 2
Eng 3: Engine Data 2
O2S/HO2S: Oxygen Sensor Data
Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories Off | |||
A/C Evap. Temperature Sensor | Eng 2, 3 | -40° to +130°C (-40° to +266°F) | Varies |
A/C High Side Pressure Sensor | Eng 2 | 0-5 Volts | Varies |
A/C High Side Pressure Sensor | Eng 2, 3 | kPa/psi | Varies |
A/C Relay Command | Eng 3 | On/Off | Off |
A/C Request Signal | Eng 3 | Yes/No | No |
BARO | Eng 2 | 65-104 kPa | Varies with altitude |
Case Diagnostic Learning | Eng 3 | Learned/Not Learned | Learned |
CASE Learned Cyl. 1 | Eng 3 | Counts | Varies |
CASE Learned Cyl. 2 | Eng 3 | Counts | Varies |
CASE Learned Cyl. 3 | Eng 3 | Counts | Varies |
CASE Learned Cyl. 4 | Eng 3 | Counts | Varies |
Desired Idle Speed | Eng 2 | 0-8,000 RPM | 800 RPM |
DTC Set This Ignition | Eng 1 | Yes/No | No |
ECT Sensor | ALL | -40° to +130°C (-40° to +266°F) | Varies |
ECT Sensor | Eng 2 | 0-5 Volts | Varies |
EC Ignition Relay Command | Eng 3 | On/Off | On |
EGR Position Sensor | Eng 2 | 0-5 Volts | 0.6-0.75 Volts |
EGR Solenoid Command | Eng 2, 3 | 0 - 100% | 0% |
Engine Load | Eng 1 | 0-99% | 20-30% - Idle 10-20% - 2500 RPM |
Engine Speed | ALL | 0-8,000 RPM | 750-825 RPM |
EVAP Purge Solenoid Command (If Equipped) | Eng 2, 3 | 0-100% | Varies |
Fan High | Eng 3 | On/Off | Varies |
Fan Low | Eng 3 | On/Off | Varies |
Fuel Gage Control | Eng 3 | 0-100% | Varies |
Fuel Level Sensor | Eng 2 | 0-5 Volts | Varies |
Fuel Level Sensor | Eng 2, 3, HO2S | 0-100% | Varies |
Fuel Pump Relay Command | Eng 3 | On/Off | On |
HO2S 1 Heater Command | HO2S | 0-100% | Varies |
HO2S 2 Heater Command | HO2S | 0-100% | Varies |
IAT Sensor | Eng 1, 3, HO2S | -39° to +140°C (-38° to +284°F) | Varies |
IAT Sensor | Eng 2 | 0-5 Volts | Varies |
Idle Switch | Eng 2 | On/Off | On |
Ignition 1 Signal | Eng 2, 3, HO2S | Volts | 12.0-14.5 Volts |
Injector PWM | Eng 2 | 0-9 ms | 4.6-5.4 ms |
ISC Command | Eng 2 | 0 - 100% | Varies |
ISC Motor Position Sensor | Eng 2 | 0 - 100% | Varies |
ISC Motor Position Sensor | Eng 2 | 0-5 Volts | Varies |
Knock Sensor | Eng 2 | 0-5 Volts | Varies |
Long Term FT | Eng 1 | -50% to +50% | 0% |
Loop Status | Eng 1, HO2S | Open Loop/Closed Loop | Closed Loop |
LT FT Cruise/Accel. | H02S | -50% to +50% | 0% |
LT FT Idle/Decel | H02S | -50% to +50% | 0% |
MAP Sensor | Eng 2, 3, HO2S | kPa | 32-40 kPa Varies with Altitude |
MIL Command | Eng 1 | On/Off | Off |
O2S/HO2S 1 | Eng 2, HO2S | 0-1,006 mV | Varies 400-800 mV |
O2S/HO2S 2 | Eng 2, HO2S | 0-1,006 mV | Varies 400-800 mV |
Octane Level | Eng 3 | -7 to +7 Counts | Vaires |
Short Term FT Avg. | HO2S | -50% to +50% | -3% to +3% |
Short Term FT | Eng 1, HO2S | -50% to +50% | -3% to +3% |
Spark | Eng 1 | -20 to +40 Degrees | 2-10 Degrees |
TP Sensor | Eng 2 | 0-5 Volts | 4.0-4.5 Volts |
TP Sensor | Eng 3, H02S | % | 3-5 % |
Transmission Gear Selector Signal | Eng 2, 3, H02S | Park/Neutral/In Gear | Park/Neutral |
Vehicle Security Status | Eng 3 | Enabled/Disabled | Disabled |
Vehicle Speed Sensor | All | km/h mph | 0 km/h (0 mph) |
