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 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.
The parameters listed below may not be available on all applications.
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 except Output Driver Data List.Eng: Engine Data List
EE: Enhanced Evaporative Emission (EVAP) Data
FT: Fuel Trim Data List
H02S: Heated Oxygen Sensor (HO2S) Data List
Ign: Ignition System Data List
Ind: Induction System Data List
MF: Misfire Data List
OD: Output Driver Data List
TAC: Throttle Actuator Control (TAC) Data List
Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park/Closed Loop/Accessories OFF | |||
5-Volt Reference 1 Circuit Status | EE, Ign, Ind, TAC | OK/Fault | OK |
5-Volt Reference 2 Circuit Status | EE, Ign, Ind, TAC | OK/Fault | OK |
5-Volt Reference 1 | EE, Ign, Ind, TAC | Volts | 4.5 V |
5-Volt Reference 2 | EE, Ign, Ind, TAC | Volts | 4.5 V |
A/C Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
A/C Relay Command | Eng , Ind, MF, TAC | On/Off | Varies |
Air Flow Calculated | EE, Eng, FT, HO2S, Ind, MF, TAC | Grams Per Seconds (g/s) | 1-9 g/s @ idle |
Ambient Air Temperature | EE, Eng | °C/°F | Varies |
APP Indicated Angle | EE, Eng, FT, HO2S, Ign, Ind, MF, TAC | 0-100% | 0 |
APP Sensor 1 | TAC | 0-100% | 0% |
APP Sensor 2 | TAC | 0-100% | 0% |
APP Sensor 1 and 2 | TAC | Agree/Disagree | Agree |
APP Sensor 1 Indicated Position | TAC | % | 0% |
APP Sensor 2 Indicated Position | TAC | % | -- |
APP Sensors | TAC | % | 0% |
BARO | EE, Eng, FT, HO2S, Ign, Ind | kPa | 50-104 kPa/ Varies w/Altitude |
BPP Circuit Signal | Eng, TAC | Applied/Released | Released |
BPP Signal | TAC | Applied/Released | Released |
Calculated TWC Temp Bank 1 | FT, MF | Degrees C/F | 315-427°C (600-800°F) |
Calculated TWC Temp Bank 2 | FT, MF | Degrees C/F | 315-427°C (600-800°F) |
Catalytic Converter Protection Active | FT, HO2S | Yes/No | No |
CKP Active Counter | Ign | 0-250 Counts | Varies |
CKP Resync Counter | Ign | Counts | 0 |
CKP Sensor | Ign | RPM | 500-700 RPM |
CMP Active Counter | Ign, MF | 0-250 Counts | Varies |
CMP Sensor | Ign | RPM | 1,000-1,400 RPM |
Cold Start-Up | Eng, EE | Yes/No | Varies |
CPP Switch | Eng, TAC | Applied Released | Released |
Cruise Control Active | Eng, TAC | Active/Inactive | Inactive |
Cycles of Misfire Data | MF | 0-100 Counts | Varies |
Cylinder 1-8 IC Circuit Status | MF, OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
Cylinder 1-8 Injector Circuit Status | MF, OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
Decel Fuel Cutoff | Eng, FT, HO2S | Active/Inactive | Inactive |
Desired Idle Speed | EE, Eng, Ind, TAC | RPM | ECM Controlled |
Distance Since DTC Cleared | Eng | km/miles | Varies |
EC Ignition Relay Circuit Status | OD, TAC | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
EC Ignition Relay Command | Eng, TAC | On/Off | On |
EC Ignition Relay Feedback | Eng, TAC | Volts | 2.25-2.95 Volts |
ECT Sensor | All | -39 to +140°C (-38 to +284°F) | 88-105°C (190-221°F) |
Engine Load | All | 0-100% | 18% @ Idle 21% @ 2500 RPM |
Engine Oil Level Switch | Eng | OK/Low | OK |
Engine Oil Pressure Sensor | Eng, MF | PSI | 30 |
Engine Oil Pressure Switch | Eng | OK/Low | OK |
Engine Run Time | All | Hrs, Min, Sec | Varies |
Engine Speed | All | 0-10,000 RPM | 500-700 RPM |
Engine Speed Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
EVAP Purge Solenoid Circuit Status | EE, OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
EVAP Purge Solenoid Command | EE, Eng, FT, HO2S | 0-100% | 10-25% |
EVAP Vent Solenoid Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
EVAP Vent Solenoid Command | EE, Eng | Not Venting/Venting | Venting |
Extended Travel BPP Switch | TAC | Applied/Released | Released |
FC Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
Fuel Level Sensor Left | EE | 0-5 Volts | Varies |
Fuel Level Sensor Right | EE | 0-5 Volts | Varies |
Fuel Pump Relay Circuit Status | Eng, OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
Fuel Pump Relay Command | Eng | On/Off | ON |
Fuel Tank Level Remaining | EE, Eng, FT, MF | 0-100% | Varies |
Fuel Tank Pressure Sensor | EE, Eng | -32.7 to +14.0 mm/Hg (-17.5 to +7.5 in/H2O) | Varies |
Fuel Tank Pressure Sensor | EE | 0-5.0 Volts | Varies |
Fuel Tank Rated Capacity | EE | 98 Liters (25.9 Gallons) or 96.2 Liters (25 Gallons) | Varies with Fuel Tank Option |
Fuel Trim Cell | Eng, FT | 0-23 | 19 |
Fuel Trim Learn | FT | Enabled/Disabled | Enabled, May Toggle |
Fuel Volatility | EE, FT | Low/Moderate/High | Varies |
HO2S Bank 1 Sensor 1 | EE, Eng, FT, HO2S, Ind | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 1 Sensor 2 | Eng, FT, HO2S | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 2 Sensor 1 | EE, Eng, FT, HO2S, Ind | Millivolts | 10-1,000 mV and Varying |
HO2S Bank 2 Sensor 2 | Eng, FT, HO2S | Millivolts | 10-1,000 mV and Varying |
HO2S BN 1 Sensor 1 Heater | HO2S | Amps | 0.7-0.9 Amps |
HO2S BN 1 Sensor 2 Heater | HO2S | Amps | 0.4-0.6 Amps |
HO2S BN 2 Sensor 1 Heater | HO2S | Amps | 0.7-0.9 Amps |
HO2S BN 2 Sensor 2 Heater | HO2S | Amps | 0.4-0.6 Amps |
HO2S BNK 1 Sen 1 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
HO2S BNK 1 Sen 2 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
HO2S BNK 2 Sen 1 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
HO2S BNK 2 Sen 2 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
HO2S Bnk 1 Sensor 1 Heater Command | HO2S | On/Off | ON |
HO2S Bnk 1 Sensor 1 Heater Command | HO2S | % | 100% |
HO2S Bnk 1 Sensor 2 Heater Command | HO2S | On/Off | ON |
HO2S Bnk 1 Sensor 2 Heater Command | HO2S | % | 100% |
HO2S Bnk 2 Sensor 1 Heater Command | HO2S | On/Off | ON |
HO2S Bnk 2 Sensor 1 Heater Command | HO2S | % | 100% |
HO2S Bnk 2 Sensor 2 Heater Command | HO2S | On/Off | ON |
HO2S Bnk 2 Sensor 2 Heater Command | HO2S | % | 100% |
Hot Open Loop | FT, HO2S | Active/Inactive | Inactive |
IAT Sensor | All | -39 to +140°C (-38 to +284°F) | 35°C (91°F) Depends on Ambient Temperature |
Ignition Accessory Signal | Eng, TAC | On/Off | ON |
Ignition 1 Signal | All | 0-25 Volts | 11.5-14.5 Volts |
Injector 1-8 Disabled Due To Misfire | MF | Yes/No | No |
Inj. PWM Bank 1 | Eng, FT, HO2S, MF | Milliseconds | 2-6 |
Inj. PWM Bank 2 | Eng, FT, HO2S, MF | Milliseconds | 2-6 |
Intake Manifold Pressure | Eng, FT, Ind | kPa/psi | Varies |
Knock Retard | Ign | 0.0-16° | 0° |
Long Term FT Bank 1 | EE, Eng, FT, HO2S | Percentage | Near 0% |
Long Term FT Bank 2 | EE, Eng, FT, HO2S | Percentage | Near 0% |
Loop Status | EE, Eng, FT, HO2S | Open/Closed | Closed |
MAF Performance Test | FT, Ind, TAC | OK/Fault | OK |
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 | Ind | 0-31,999 Hz | 1,150-1,350 Hz |
MAP Performance Test 1 | FT, Ind, TAC | OK/Fault | OK |
MAP Performance Test 2 | FT, Ind, TAC | OK/Fault | OK |
MAP Sensor | All | kPa | 20-48 kPa |
MAP Sensor | Ind | Volts | 1.0-2.0 Volts Varies with Altitude |
MIL Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
MIL Command | Eng | Off/On | Off |
MIL Requested by DTC | All | Yes/No | No |
Misfire Current Cyl. 1-8 | MF | 0-200 Counts | 0 |
Misfire History Cyl. 1-8 | MF | 0-65,535 Counts | 0 |
PNP Switch | Eng | P/N Yes/No in gear | P/N |
Power Enrichment | Eng, FT, HO2S, MF | Active/Inactive | Inactive |
Reduced Engine Power | TAC | Active/Inactive | Inactive |
Short Term FT Bank 1 | EE, Eng, FT, HO2S | Percentage | Near 0% |
Short Term FT Bank 2 | EE, Eng, FT, HO2S | Percentage | Near 0% |
Spark | Eng, FT, HO2S, Ign, Ind, MF | Degrees | 10-17° |
Starter Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
Start-Up ECT | EE, HO2S | °C/°F | Varies |
Start-Up IAT | HO2S | °C/°F | Varies |
TAC Forced Engine Shutdown | TAC | Yes/No | No |
TAC Motor | TAC | Enabled/Disabled | Enabled |
TAC Motor Command | TAC | 0-100% | 15-35% |
Torque Management Spark Retard | Ign | Degrees | 0° |
Total Knock Retard | Ign | Degrees | 0° |
Total Misfire | MF | Counts | Varies |
TP Desired Angle | TAC | 0-100% | 5.5% |
TP Indicated Angle | All | 0-100% | 5.5% |
TP Performance Test | FT, Ind, TAC | OK/Fault | OK |
TP Sensor 1 Learned Minimum | TAC | Volts | 0.55 |
TP Sensor 2 Learned minimum | TAC | Volts | 0.55 |
TP Sensors 1 and 2 | TAC | Agree/Disagree | Agree |
TP Sensor 1 Indicated Position | TAC | % | 5% |
TP Sensor 2 Indicated Position | TAC | % | 5% |
Vehicle Speed Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK/Incomplete |
Vehicle Speed Sensor | All | km/h mph | 0 |
Warm-Ups w/o Emission Faults | Eng | 0-255 Counts | Varies |
Warm-Ups w/o Non-Emission Faults | Eng | 0-255 Counts | Varies |
Warm-Ups Since DTC Cleared | Eng | Counts | Varies |
Wide Open Throttle | TAC | Yes/No | No |
