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.CMP: CMP Actuator Data
COOL: Cooling/HVAC Data
ED: Engine Data
EVAP: EVAP Data
FSD: Fuel System Data
FT: Fuel Trim Data List
I/M: I/M Data
IND: Induction Data
MF: Misfire Data List
TAC: Throttle Actuated Control Data List
HO2S: HO2S Data
ID: Ignition Data
Scan Tool Parameter | Data List | Parameter Range | Typical Values |
|---|---|---|---|
Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF | |||
5-Volt Reference 1 Circuit Status | COOL, EVAP, FSD, TAC, IND, ID | OK / Fault | OK |
5-Volt Reference 2 Circuit Status | EVAP, COOL, FSD, TAC, IND, ID | OK / Fault | OK |
5-Volt Reference 3 Circuit Status | EVAP, COOL, FSD, ID, IND, TAC | OK / Fault | OK |
A/C Disengage 1 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 2 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 3 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 4 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 5 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 6 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 7 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C Disengage 8 History | COOL | None / Battery Voltage / High Pressure / Engine Speed | None |
A/C High Side Pressure Sensor | COOL | Volts | 0.96 |
A/C High Side Pressure Sensor | COOL | kPa / psi | 518 kPa / 75 psi |
A/C Off For WOT | COOL | Yes / No | No |
A/C Pressure Disable | COOL | Yes / No | No |
A/C Relay Circuit Status | COOL | OK / Incomplete / Short B+ / Short GND / Open | Incomplete |
A/C Relay Command | COOL, MF, IND, TAC | On / Off | Off |
A/C Relay Command | ED, MF | On / Off | Off |
A/C Request Signal | COOL | Yes / No | No |
Actual Fuel Rail Pressure | ED, FSD, FT | MPa | 3.0-6.0 |
Air Flow Calculated | EVAP, TAC, ED, HO2S, IND, FT, MF | g/s | Varies |
Air Fuel Ratio | ED | Ratio | 14.7:1 |
APP Indicated Angle | ED, FSD, FT, HO2S, ID, IND, MF, TAC, EVAP, CMP | % | 0 |
APP Sensor 1 | TAC | Volts | -- |
APP Sensor 1 and 2 | TAC | Agree / Disagree | Agree |
APP Sensor 2 | TAC | Volts | 0.47 |
APP Sensors | TAC | % | 0 |
Aux. Vac. Pump Relay Circuit Status | IND | OK / Fault / Indeterminate | Indeterminate |
Aux. Vac. Pump Relay Command | IND | On / Off | OFF |
Average Injector PWM | FT | ms | 1 |
BARO | ID, FT, ED, EVAP, FSD, IM, IND, HO2S | kPa | Varies with altitude |
BARO Sensor | IND | Volts | 3 |
Boost Pressure Sensor | FT, IND | kPa | 98 |
Boost Pressure Sensor | IND | Volts | 1.78 |
Brake Booster Pressure Sensor | ED | kPa | 26 |
Brake Pedal Signal Status | ED, TAC | Valid / Invalid | Valid |
Calc. TWC Temp. | MP, FT | °C (°F) | 408°C (766°F) |
Calculated ECT-Closed Loop Fuel Control | ED, COOL | °C (°F) | Varies |
Calculated ECT-Thermostat Diagnosis | ED, COOL | °C (°F) | Varies |
Catalyst Monitor Complete This Ignition | I/M | Yes / No | No |
Catalyst Monitor Enabled This Ignition | I/M | Yes / No | Yes |
Catalytic Converter Protection Active | FT, HO2S | Yes / No | No |
CKP Active Counter | ID | Counts | Varies |
CKP Resync Counter | ID | Counts | Varies |
Cmmd. A/F Equivalence Ratio | FSD, FT, IND, HO2S | Ratio | 1.0:1 |
CMP Sensor | CMP, ID, MF | RPM | 0 |
Cold Startup | EVAP, ED, IM | Yes / No | Varies |
Control Module Voltage Signal | CMP, FSD, IM, ID, EVAP, ED, COOL, MF, FT, IND, HO2S | Volts | 14.1 |
Cooling Fan Motor Command | COOL | % | 0 |
CPP Switch (If equipped) | ED, IM, TAC | Applied / Released | Released |
Cruise Control Active | ED, TAC | Yes / No | No |
Cycles of Misfire Data | MF | Counts | 0-1999 |
Cylinder 1 IC Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cyliner 1 Knock Retard | ID | Degrees | Varies |
Cyliner 2 Knock Retard | ID | Degrees | Varies |
Cyliner 3 Knock Retard | ID | Degrees | Varies |
Cyliner 4 Knock Retard | ID | Degrees | Varies |
Cylinder 1 Injector Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 2 IC Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 2 Injector Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 3 IC Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 3 Injector Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 4 IC Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Cylinder 4 Injector Circuit Status | MF | OK / Incomplete / Short B+ / Short Ground / Open | OK |
Decel. Fuel Cutoff | FSD, ED, FT, HO2S | Active / Inactive | Inactive |
Desired Exh. CMP | CMP | Degrees | 0 |
Desired Fuel Rail Pressure | FSD, FT | MPa | 3.8 |
Desired HO2S 1 | FT, HO2S | Lambda | 0.991 |
Desired HO2S 1 | HO2S | Volts | 0 |
Desired Idle Speed | CMP, ED, FSD, TAC, EVAP, IND | RPM | 800 |
Desired Int. CMP | CMP | Degrees | 0 |
Desired TC Boost | IND | kPa | 48 |
Distance Since DTC Cleared | ED | km / miles | Varies |
EC Ignition Relay Circuit Status | TAC | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
EC Ignition Relay Command | ED | On / Off | On |
EC Ignition Relay Feedback Signal | ED, TAC | Volts | 14.1 |
ECT Sensor | IM, ED, FSD, FT, HO2S, EVAP, CMP, COOL | °C (°F) | 92°C (197°F) |
Engine Load | ED, CMP, EVAP, FSD, FT, HO2S, ID, IND, TAC, COOL, MF | % | 15-22 |
Engine Off EVAP Test Conditions Met | EVAP, IM | Yes / No | Yes |
Engine Off Time | ID | HH:MM:SS | Varies |
Engine Oil Pressure Switch | ED, MF, CMP | OK / Low | OK |
Engine Oil Temperature Calculated | CMP, COOL | °C / °F | 87°C /188 °F |
Engine Run Time | All | HH:MM:SS | Varies |
Engine Speed | All | RPM | 700-900 |
EVAP Fault History | EVAP | No Fault, No Test Result | No Test Result |
EVAP Monitor Complete This Ignition | IM | Yes / No | No |
EVAP Monitor Enabled This Ignition | IM | Yes / No | No |
EVAP Purge Solenoid Circuit Status | EVAP | OK / Incomplete / Short B+ / Short Gnd / Open | OK |
EVAP Purge Solenoid Command | EVAP, FT, HO2S | % | 0-100 |
EVAP Vent Solenoid Circuit Status | EVAP | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
EVAP Vent Solenoid Command | ED, EVAP | Venting / Not Venting | Varies |
Exh. CMP Active Counter | CMP, ID | Counts | 255 |
Exh. CMP Angle | CMP | Degrees | 0 |
Exh. CMP Command | CMP | % | 6 |
Exh. CMP Solenoid Circuit Status | CMP | OK / Incomplete / Short B+ / Short Gnd / Open | OK |
Exh. CMP Variance | CMP | Degrees | 0 |
FC Circuit Status | COOL | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
FRP Regulator Command | FSD, FT | Degrees | 125 |
Fuel Level Sensor | EVAP, FSD | Volts | Varies |
Fuel Pump Relay Circuit Status | FSD, FT | OK / Incomplete / Short B+ / Short Gnd / Open | Fault |
Fuel Pump Relay Command | FSD, ED | On / Off | On |
Fuel Rail Pressure Sensor | FT, ED | Volts | 1.2-1.5 |
Fuel Tank Level Remaining | ED, FSD, FT, EVAP, MF, IM | % | Varies |
Fuel Tank Level Remaining | EVAP, MF, IM | Gallons / Liters | Varies |
Fuel Tank Pressure Sensor | EVAP, ED, FSD | mm/Hg / in H2O | Varies |
Fuel Tank Pressure Sensor | EVAP | Volts | 1.5 |
Fuel Tank Rated Capacity | EVAP | Gallons / Liters | Varies |
Fuel Trim Learn | FT | Enabled / Disabled | Disabled |
Fuel Volatility | FT, FSD, EVAP | Low / Moderate / High | Varies |
HO2S 1 | HO2S, IND, EVAP, ED, FT | Lambda | Varies |
HO2S 1 Heater Circuit Status | HO2S | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
HO2S 1 Heater Command | HO2S | On / Off | On |
HO2S 1 Heater Command | HO2S | % | 37 |
HO2S 1 Sensing Element | HO2S | Ohms | 300 |
HO2S 2 | FT, HO2S, ED | Mv | 0.795 (Varies) |
HO2S 2 Heater Circuit Status | HO2S | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
HO2S 2 Heater Command | HO2S | On / Off | On |
HO2S 2 Heater Command | HO2S | % | 100 |
HO2S 2 Sensing Element | HO2S | Ohms | 0 |
HO2S Heater Monitor Complete This Ignition | IM | Yes / No | No |
HO2S Heater Monitor Enabled This Ignition | IM | Yes / No | Yes |
HO2S Sensor 1 Module Signal | CMP, FT, HO2S, MF | Volts | 1.47 |
HO2S/O2S Monitor Complete This Ignition | IM | Yes / No | No |
HO2S/O2S Monitor Enabled This Ignition | IM | Yes / No | Yes |
IAT Sensor | All | °C (°F) | -- |
IAT Sensor 2 | ED, EVAP, COOL, FT, IND | °C (°F) | 15-40 |
Ignition 0 Signal | ED, TAC | Units | -- |
Ignition 1 Signal | ED, EVAP | On / Off | On |
Ignition Off Time | ED, EVAP, IM | HH:MM:SS | Varies |
Initial Brake Apply Signal | IM, TAC | Released / Applied | Released |
Inj. 1 Disabled Due to Misfire | MF | Yes / No | No |
Inj. 2 Disabled Due to Misfire | MF | Yes / No | No |
Inj. 3 Disabled Due to Misfire | MF | Yes / No | No |
Inj. 4 Disabled Due to Misfire | MF | Yes / No | No |
Injector 1 Command | FT | ms | Varies |
Injector 2 Command | FT | ms | Varies |
Injector 3 Command | FT | ms | Varies |
Injector 4 Command | FT | ms | Varies |
Int. CMP Active Counter | CMP, ID | Counts | 255 |
Int. CMP Angle | CMP | Degrees | 0 |
Int. CMP Command | CMP | % | 6 |
Int. CMP Solenoid Circuit Status | CMP | OK, Incomplete, Short B+, Short Gnd / Open | OK |
Int. CMP Variance | CMP | Degrees | 0 |
Intake Manifold Pressure | ED, FT, IND | kPa | Varies |
Knock Detected Cyl. 1 | ID | Yes / No | No |
Knock Detected Cyl. 2 | ID | Yes / No | No |
Knock Detected Cyl. 3 | ID | Yes / No | No |
Knock Detected Cyl. 4 | ID | Yes / No | No |
Knock Retard | ID | Degrees | Varies |
KS 1 Signal | ID | Volts | Varies |
KS 2 Signal | ID | Volts | Varies |
Long Term FT | ED, EVAP, FT, HO2S | % | 0 |
Loop Status Sensor 1 | ED, EVAP, FT, HO2S | Open / Closed | Varies |
Loop Status Sensor 2 | ED, EVAP, FT, HO2S | Open / Closed | Varies |
LT FT Idle/Decel. | ED, EVAP, FT, HO2S | % | 0 |
MAF Sensor | ID, FT, ED, EVAP, CMP, FSD, MF, TAC, HO2S | g/s | 2-4 |
MAF Sensor | IND | Hz | 1950 |
MAP Sensor | IND, FT, ED, TAC, CMP, FSD, EVAP, MF | kPa | 30-38 |
MAP Sensor | IND | Volts | 0.67 |
MIL Circuit Status | ED | OK / Incomplete / Short B+ / Short Gnd / Open | Incomplete |
MIL Command | ED | On / Off | Off |
MIL Requested by DTC | All | Yes / No | No |
Misfire Current Cyl. 1 | MF | Counts | 0 |
Misfire Current Cyl. 2 | MF | Counts | 0 |
Misfire Current Cyl. 3 | MF | Counts | 0 |
Misfire Current Cyl. 4 | MF | Counts | 0 |
Misfire History Cyl. 1 | MF | Counts | 0 |
Misfire History Cyl. 2 | MF | Counts | 0 |
Misfire History Cyl. 3 | MF | Counts | 0 |
Misfire History Cyl. 4 | MF | Counts | 0 |
Moderate Brake Apply Signal | TAC | Applied / Released | Released |
PNP Switch | ED | Park / Neutral | Park |
Post Inj. Cyl. 1 Command | FT | ms | 0 |
Post Inj. Cyl. 2 Command | FT | ms | 0 |
Post Inj. Cyl. 3 Command | FT | ms | 0 |
Post Inj. Cyl. 4 Command | FT | ms | 0 |
Power Enrichment | ED, FSD, MF, FT | Active / Inactive | Inactive |
Reduced Engine Power | TAC | Active / Inactive | Inactive |
Short Term FT | ED, EVAP, FT, HO2S | % | 0 |
Spark | HO2S, FT, ED, FSD, IND, MF, COOL, ID | Degrees | Varies |
Start Up ECT | EVAP, COOL, IM, HO2S | °C (°F) | Varies |
Start Up IAT | ED, FT, IND | °C (°F) | -- |
Stop Lamp Pedal Switch | IM | Released / Applied | Released |
System Power Mode | ED, EVAP | Offawake / Run / Accessory | Run |
TAC Forced Engine Shutdown | TAC | Yes / No | No |
TAC Motor | TAC | Enabled / Disabled | Enabled |
TC Bypass Solenoid Circuit Status | IND | OK, Incomplete, Short B+, Short Gnd / Open | -- |
TC Bypass Solenoid Command | ID | On / Off | On |
TC Wastegate Solenoid Circuit Status | ID, IND | OK, Incomplete, Short B+, Short Gnd / Open | Incomplete |
TCS Torque Delivered Signal | ID, TAC | % | 0 |
TCS Torque Request Signal | TAC | % | 98 |
Total Fuel Trim Average | EVAP, ID, HO2S, FT | % | Varies |
Total Knock Retard | COOL, ID | Degrees | Varies |
Total Misfire | MF | Counts | 0 |
TP Desired Angle | TAC | % | 2 |
TP Indicated Angle | HO2S, ED, TAC, FSD, FT, CMP, EVAP, MF, IND | % | 2-5 |
TP Sensor 1 | TAC | Volts | 4.22 |
TP Sensor 1 Learned Minimum | TAC | Volts | 4.31 |
TP Sensor 2 | TAC | Volts | 0.76 |
TP Sensor 2 Learned Minimum | TAC | Volts | 0.69 |
TP Sensors 1 and 2 | TAC | Agree / Disagree | Agree |
Vehicle Speed Sensor | ALL | kmh / mph | 0 |
Volumetric Efficiency | ID, ED, EVAP, FT, HO2S, CMP, MF, COOL | % | 15-22 |
Warm-ups Since DTC Cleared | ED | Counts | Varies |
Wastegate Solenoid Command | IND | % | 0 |
Wide Open Throttle | TAC | Yes / No | No |
