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:
| • | Powertrain On-Board Diagnostic System Check is completed. |
| • | No Diagnostic Trouble Codes (DTCs) are active. |
| • | 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 normally running engine.
Important: A scan tool that displays faulty data should not be used. The scan tool concern 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 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:
Eng 1: Engine Data 1 ListEng 2: Engine Data 2 List
EGR: Exhaust Recirculation Valve Data
EVAP: Evaporative Emissions Data
Cat: Exhaust Catalyst Data
HO2S: Heated Oxygen Sensor Data
Misfire: Cylinder Misfire Data
Cruise: Cruise Control Data
TAC: Throttle Actuator Control Data
ODD: Output Driver Data
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off/Brake Pedal Released | |||
3X Crank Sensor | Misfire | RPM | Varies |
18X Crank Sensor | Misfire | RPM | Varies |
1-2 Sol. | ODD | OK/Fault/Invalid State | OK |
2-3 Sol. | ODD | OK/Fault/Invalid State | OK |
3-2 Downshift Sol. | ODD | OK/Fault/Invalid State | OK |
A/C High Side Pressure | Eng 2 | Volts | Varies |
A/C Press Out of Range | Eng 2 | Yes/No | No |
A/C Relay | ODD | OK/Fault/Invalid State | OK |
A/C Request | Eng 2, Cat, Misfire | Yes/No | No |
Actual EGR Position | Eng 1, 2, EGR, Misfire | Percent | 0 |
Air Fuel Ratio | Eng 1, Cat, HO2S | Ratio | 14.2:1 - 14.7:1 |
APP Average | Eng 1, 2, EGR, Cat, HO2S, Cruise, TAC | Counts | Varies |
APP Indicated Angle | Eng 1, 2, EGR, Cat, HO2S, Cruise, TAC | Percent | 0 |
APP Sensor 1 | TAC | Volts | 0.8 - 1.0 |
APP Sensor 2 | TAC | Volts | 0.8 - 1.0 |
APP Sensor 3 | TAC | Volts | 0.8 - 1.0 |
APP Sensor 1 Angle | TAC | Percent | 0 |
APP Sensor 2 Angle | TAC | Percent | 0 |
APP Sensor 3 Angle | TAC | Percent | 0 |
APP Sen. 1 and 2 Disagree | TAC | Yes/No | No |
APP Sen. 1 and 3 Disagree | TAC | Yes/No | No |
APP Sen. 2 and 3 Disagree | TAC | Yes/No | No |
APP Sen. 1 Out of Range | TAC | Yes/No | No |
APP Sen. 2 Out of Range | TAC | Yes/No | No |
APP Sen. 3 Out of Range | TAC | Yes/No | No |
BARO | Eng 1, 2, EGR, EVAP, Cat | kPa/Volts | 65-110 kPa / 3.5-4.5 Volts |
Brake Switch | Cruise, TAC | Applied/Released | Released |
Cam Signal Present | Misfire | Yes/No | Yes |
Clutch Anticipate Switch | Cruise (w/ Manual Transmission) | Applied/Released | Released |
Commanded A/C | Eng 2, Cat, Misfire | On/Off | Off |
Commanded Gen | Eng 1 | On/Off | On |
Cruise | Cruise, TAC | Engaged/Disengaged | Disengaged |
Cruise Disengage Hist.1-6 | Cruise | Varies | |
Cruise Release Sw. | Cruise, TAC | Applied/Released | Released |
Cruise Resume/Accel | Cruise, TAC | On/Off | Off |
Cruise Set/Coast | Cruise, TAC | On/Off | Off |
Cruise Switch | Cruise, TAC | On/Off | Off |
Current Gear | Eng 1 | Transmission Gear Position | 1 |
Cyl. 1-6 Ckt. History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Cyl. 1-6 Ckt. Status | ODD | OK/Stuck Low (open)/Stuck High | OK |
Decel Fuel Mode | Eng 1, 2, Cat, HO2S, Misfire, Cruise, TAC | Active/Inactive | Inactive |
Desired EGR Position | Eng 1, 2, EGR, Misfire | Percent | 0 |
Desired Idle Speed | Eng 1, 2, EVAP, Cruise, TAC | RPM | PCM Controlled (varies) |
Driver Module 1 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 2 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 3 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 4 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
ECT | Eng 1, 2, EGR, EVAP, Cat, HO2S, Misfire | °C/°F | Varies |
EGR Closed Val. Pintle | EGR | Volts | 0.14-1.0 |
EGR Duty Cycle | EGR | Percent | 0 |
EGR Feedback | EGR | Volts | 0.14-1.0 |
EGR Flow Test Count | EGR | Counts | 0-10 |
EGR Position Error | EGR | Percent | 0-100 |
Engine Load | Eng 1, 2, Cat, Misfire, Cruise, TAC | Percent | 2-5 |
Engine Run Time | Engine 1, 2, EVAP, Cat, Cruise, TAC | Hr: Min: Sec | Varies |
Engine Speed | Eng 1, 2, EGR, EVAP, Cat, HO2S, Misfire, Cruise, TAC | RPM | Varies |
EVAP Canister Purge | EVAP, HO2S | Percent | Low and Varying |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum | No Fault |
EVAP Purge Sol. | ODD | OK/Fault/Invalid State | OK |
EVAP Vent Sol. | EVAP | Open/Closed | Varies |
EVAP Vent Sol. | ODD | OK/Fault/Invalid State | OK |
Fans High Speed | Eng 2, Cat | On/Off | Off |
Fans Low Speed | Eng 2, Cat | On/Off | Off |
FC Relay 1 | ODD | OK/Fault/Invalid State | OK |
FC Relay 2 and 3 | ODD | OK/Fault/Invalid State | OK |
Fuel Level | EVAP | Percent | 0-100 |
Fuel Pump | Eng 2 | On/Off | On |
Fuel Pump Ckt. History | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Fuel Pump Ckt. Status | ODD | OK/Stuck Low (open)/Stuck High/Fault | OK |
Fuel Tank Pressure | EVAP | in H2O/Volts | Varies |
Fuel Trim Cell | Eng 1, Misfire | 0-4 | 0 |
Fuel Trim Learn | Eng 1, Cat | Enabled/Disabled | Varies |
HO2S Bank 1 Sensor 1 | Eng 1, HO2S | Ready/Not Ready | Ready |
HO2S Bank 2 Sensor 1 | Eng 1, HO2S | Ready/Not Ready | Ready |
HO2S Bank 1 Sensor 1 | Eng 1, Cat, HO2S | millivolts | 0-1000 and Varying |
HO2S Bank 2 Sensor 1 | Eng 1, Cat, HO2S | millivolts | 0-1000 and Varying |
HO2S Bank 1 Sensor 2 | Eng 1, Cat, HO2S | millivolts | 0-1000 and Varying |
HO2S Warm-Up Bn1 Sen 1 | HO2S | Min: Sec | Varies (under 2 minutes) |
HO2S Warm-Up Bn2 Sen 1 | HO2S | Min: Sec | Varies (under 2 minutes) |
HO2S Warm-Up Bn1 Sen 2 | HO2S | Min: Sec | Varies (under 2 minutes) |
HO2S XCounts Bank 1 | HO2S | Counts | Varies |
HO2S XCounts Bank 2 | HO2S | Counts | Varies |
IAT | Eng 1, 2, EVAP, Cat, HO2S | °C/°F | Varies |
Ignition 1 | Eng 1, 2, EGR, HO2S, Cruise, TAC | Volts | Varies |
Ignition Mode | Eng 2 | IC/Bypass | IC |
Injector Pulse Width | Eng 1, Cat | milliseconds | Varies (1.5-3.5) |
Knock Retard | Eng 2 | Degrees | 0 |
Long Term FT Bank 1 | Eng 1, Misfire | Percent | -10-10 |
Long Term FT Bank 2 | Eng 1, Misfire | Percent | -10-10 |
Loop Status | Eng 1, Cat, HO2S, Misfire | Open/Closed | Closed |
MAF | Eng 1, 2, Cat, HO2S, TAC | Grams per Second | 3-6 (depends on altitude) |
MAF Frequency | Eng 1 | Hz | 1200-3000 (depends on altitude) |
MAP | Eng 1, 2, EGR, EVAP, TAC | kPa/Volts | 20-48 kPa/0.75-2 Volts (depends on altitude) |
MIL | Eng 2 | On/Off | Off |
MIL | ODD | OK/Fault/Invalid State | OK |
Misfire Current Cyl. 1-6 | Misfire | Counts | 0 |
Misfire History Cyl. 1-6 | Misfire | Counts | 0 |
Misfiring Cylinder Prim. | Misfire | 0-6 | 0 |
Misfiring Cylinder Sec. | Misfire | 0-6 | 0 |
Power Enrichment | Eng 1, 2, Cat, HO2S, Misfire, Cruise, TAC | Active/Inactive | Inactive |
Reduced Engine Power | Eng 1, 2, EGR, Cat, HO2S, Misfire, Cruise, TAC | Active/Inactive | Inactive |
Rich/Lean Bank 1 | Eng 1 | Rich/Lean | Constantly Varying |
Rich/Lean Bank 2 | Eng 1 | Rich/Lean | Constantly Varying |
Short Term FT Bank 1 | Eng 1, Cat, Misfire | Percent | -10-10 |
Short Term FT Bank 2 | Eng 1, Cat, Misfire | Percent | -10-10 |
Spark | Eng 2 | Degrees | 20 (varies) |
Starter Enable Relay | ODD | OK/Fault/Invalid State | OK |
Starter Inhibit | Eng 2 | Active/Inactive | Inactive |
Start Up ECT | EVAP, HO2S | °C/°F | Varies |
Start Up IAT | EVAP, HO2S | °C/°F | Varies |
TAC Brake Switch | Cruise, TAC | Applied/Released | Released |
TAC/PCM Communication | Eng 1, 2, EGR, Cat, HO2S, Cruise, TAC | OK/Fault | OK |
TCC Enable Sol. | ODD | OK/Fault/Invalid State | OK |
TCC Sol. | ODD | OK/Fault/Invalid State | OK |
Total Misfire Current Count | Misfire | Counts | 0 |
Total Misfire Failures Since First Fail | Misfire | Counts | 0 |
Total Misfire Passes Since First Fail | Misfire | Counts | 0 |
TP Desired Angle | Eng 1, 2, EGR, Cat, HO2S, Cruise, TAC | Percent | 1-4 |
TP Indicated Angle | Eng 1, 2, EGR, Cat, HO2S, Misfire, Cruise, TAC | Percent | 1-4 |
TP Sensor 1 | TAC | Volts | 0.5-1.2 |
TP Sensor 2 | TAC | Volts | 0.5-1.2 |
TP Sensor 1 Angle | TAC | Percent | 2-4 |
TP Sensor 2 Angle | TAC | Percent | 2-4 |
TP Sensors Disagree | TAC | Yes/No | No |
TP Sensor 1 Out of Range | TAC | Yes/No | No |
TP Sensor 2 Out of Range | TAC | Yes/No | No |
Traction Control | Eng 2, Cruise | Active/Inactive | Inactive |
Traction Control Desired Toque | Eng 2, Cruise | Percent | 100% |
Traction Control Torque | Eng 2, Cruise | Percent | 65-80% |
Transmission Range | Eng 2, Cruise (w/ automatic transmission) | Transmission Gear Position | Park |
TR Switch A | Eng 2, Cruise (w/ automatic transmission) | Low/High | High |
TR Switch B | Eng 2, Cruise (w/ automatic transmission) | Low/High | Low |
TR Switch C | Eng 2, Cruise (w/ automatic transmission) | Low/High | High |
TWC Protection | Eng 1, 2, Cat, HO2S, Misfire, Cruise, TAC | Active/Inactive | Inactive |
Vehicle Speed | Eng 1, 2, EGR, Cat, Misfire, Cruise, TAC | MPH/Km/h | 0 |
VTD Fuel Disable | Eng 2 | Active/Inactive | Inactive |
