For 1990-2009 cars

### Engine Scan Tool Data List

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).

• | 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 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. For further information on using the scan tool to diagnose the PCM and related sensors, refer to the applicable reference section listed below. If all values are within the typical range described below, refer to service category 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:

• | All = The Parameter is in all data lists indicated below.

• | Eng 1 = Engine 1 Data List

• | Eng 2 = Engine 2 Data List

• | FF = Freeze Frame Data List

• | FR = Failure Records Data List

• | Misfire = Misfire Data List

• | FT = Fuel Trim Data List

Engine Idling/Lower Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop
Scan Tool Parameter | Vehicle Platform | Data List | Units Displayed | Typical Data Values
--- | --- | --- | --- | ---
1-4 Shift Sol. | Y | Eng 1 | Enable/Disabled | Disabled
A/C Clutch | B,D,F,Y | Eng 1,2 | Off/On | Off
A/C Evap. ±Temp. | F | Eng 1 | C°/F° | Varies
A/C High Side | B,D,F,Y | Eng 1 | Volts/psi | Varies
A/C Request | B,D,F,Y | Eng 1, Misfire | No/Yes | No
A/C Status | B,D,F,Y | Eng 1, Misfire | Off/On | Off
A/T Perf. Mode | F | Eng 1 | Normal/Perf. | Varies
A/T Perf. Switch | F | Eng 1 | Active/Inactive | Varies
AIR Pump | B,D,F,Y | Eng 1, 2, FT | Disabled/Enabled | Disabled
ASR/TCS Spark Retard | D,F,Y | Eng 2 | No/Yes | No
BARO | B,D,F,Y | Eng 1, 2 | kPa/Volts | 65-104/3.5-4.5 (Varies w/Altitude
CKP Engine Speed | B,D,F,Y | Eng 2, Misfire | RPM | ± 75 RPM from engine speed
CKP: Lo Res Angle | B,D,F,Y | Eng 2 Misfire | °Dev (Deviation) | 0° Dev (varies ± 3°)
Cold Start Up | B,D,F,Y | Eng 1, 2 | No/Yes | Varies
Current Gear | B,D,F,Y | Eng 1 | Gear position | 1
Cycles Of Misfire Data | B,D,F,Y | Misfire | Counts | 0-100
Cyl. Mode Misfire Index | B,D,F,Y | Misfire | Counts | Varies
Desired Idle | B,D,F,Y | Eng 1, 2 | RPM | PCM Controled
DTC | B,D,F,Y | FF, RR | Pxxxx | Varies
DTC Set This Ign. | B,D,F,Y | Eng 1, 2 | No/Yes | No
ECT | B,D,F,Y | All | C°/F° | 85°C-108°C (185°-226°)
EGR Duty Cycle | B,D,F,Y | Eng 1,2, FT | Percentage | 0
Engine Load | B,D,F,Y | FF, FR, Misfire | Percentage | 3% @ Idle 9% @ 2500 RPM
Engine Oil Temp. | Y | Engine 1 | C°/F° | Varies
Engine Run Time | B,D,F,Y | Eng 1 | C°/F° | Varies
Engine Speed | B,D,F,Y | All | RPM | ± 100 RPM from desired
EVAP Purge | B,D,F,Y | Eng 1, 2, FT | Percentage | 0
EVAP Vacuum Sw. | B,D,F,Y | Eng 1, 2, FT | No Purge/Purge | No Purge
Fail Counter | B,D,F,Y | FF, FR | Counts | Varise
FC Relay 1 | B,D,F,Y | Eng 1, 2 | Off/On | Depends on engine temperature and A/C Pressure
FC Relay 2 | B,D, | Eng 1, 2 | Off/On | Depends on engine temperature and A/C Pressure
FC Relay 2 and 3 | F,Y | Eng 1, 2 | Off/On | Depends on engine temperature and A/C Pressure
Fuel Trim Cell | B,D,F,Y | Eng 1, 2, FT | Cell Number | 16
Fuel Trim Learn | B,D,F,Y | Eng 1, 2, FT | Disabled/Enable | Enable (may Toggle)
High Res. Signal | B,D,F,Y | Eng 1, 2 | Inactive/Active | Active
HO2S Bn 1 Sen. 1 | B,D,F,Y | Eng 1, 2, FT | Millivolts | 10-1000 mV and Varying
HO2S Bn 1 Sen. 2 | B,D,F,Y | Eng 1, 2, FT | Millivolts | 10-1000 mV and Varying
HO2S Bn 2 Sen. 1 | B,D,F,Y | Eng 1, 2 | Millivolts | 10-1000 mV and Varying
HO2S Bn 2 Sen. 2 | B,D,F,Y | Eng 1, 2, FT | Millivolts | 10-1000 mV and Varying
IAC Learned | B,D,F,Y | Eng 1, 2, FT | Counts | 10-50
IAC Position | B,D,F,Y | Eng 1, 2, FT | Counts | 10-50
IAT | B,D,F,Y | Eng 1, 2, FT | C°/F° | 10°C-90°C (50°F-194°F)
Ignition Volts | B,D,F,Y | Eng 1, 2, FT | Volts | 12.5-14.5
Inj Avg PWM Bn 1 | B,D,F,Y | Eng 1, FT | Milliseconds | 1-4
Inj Avg PWM Bn 2 | B,D,F,Y | Eng 1, 2, FT | Milliseconds | 1-4
Knock Retard | B,D,F,Y | Eng 1, 2 | Degrees | 0
KS Activity | B,D,F,Y | Eng 1, 2 | No/Yes | No
Long Term FT Bn 1 | B,D,F,Y | Eng 1, 2, FT | Percentage/Counts |
Long Term FT Bn 2 | B,D,F,Y | Eng 1, 2, FT, FF, FR | Percentage/Counts |
Loop Status | B,D,F,Y | Eng 1, 2, FT | Open/Closed | Closed
Low Res. Signal | B,D,F,Y | Eng 1, 2 | Milliseconds | Varies
LT FT Avg. Bn 1 | B,D,F,Y | FT | Counts/Percentage |
LT FT Avg. Bn 2 | B,D,F,Y | Eng 1, 2 | Counts/Percentage |
MAF | B,D,F,Y | All | Grams Per Seconds (g/s) | 5-9 @ Idle (depends on altitude) 20-26 @ 2500 RPM (depends on altitude)
MAP | B,D,F,Y | Eng 1, 2 FT | kPa/Volts | 20-48/1.0-2.0 (varies w/altitude
Mileage Since First Failure | B,D,F,Y | FF, FR | km/Miles | Varies
Mileage Since Last Failure | B,D,F,Y | FR | km/Miles | Varies
Mileage Since MIL Request | B,D,F,Y | FF | km/Miles | Varies
Misfire Cur. #1 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #2 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #3 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #4 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #5 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #6 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #7 | B,D,F,Y | Misfire | Counts | Varies
Misfire Cur. #8 | B,D,F,Y | Misfire | Counts | Varies
Misfire Failures | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #1 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #2 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #3 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #4 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #5 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #6 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #7 | B,D,F,Y | Misfire | Counts | Varies
Misfire Hist. #8 | B,D,F,Y | Misfire | Counts | Varies
Misfire Passes | B,D,F,Y | Misfire | Counts | Varies
Misfire Per Cycle Status | B,D,F,Y | Misfire | Prim. Cyl# 0-8, Sec. Cyl# 0-8 |
Msf. Rev. Status | B,D,F,Y | Misfire | Accept/Reject | Accept
MPH Km/h | B,D,F,Y | Eng 1 | MPH km/h | 0
Not Run Counter | B,D,F,Y | FF | Counts | 0
Oil Level | B,D | Eng 1 | Normal/Low | Normal
Pass Counter | B,D,F,Y | FF | Counts | Varies
Pass Key Fuel | B,D,F,Y | Eng 1,2 | Disabled/OK | OK
PCM Reset | B,D,F,Y | Eng 1,2 | Yes/No | No
PNP | B,D,F,Y | Eng 1 | P-N--/-ROD21 | P-N--
PSP Switch | B,D,F,Y | Eng 1 | High Press./Normal | Normal
Reverse Inhibit | F | Eng 1 | Enable/Disabled | Disabled
Revs w/Misfire | B,D,F,Y | Misfire | Counts | 0
Shrt Term FT Bn 1 | B,D,F,Y | Eng 1, 2, FT FF, FR | Precentage/Counts |
Shrt Term FT Bn 2 | B,D,F,Y | Eng 1, 2, FT FF, FR | Precentage/Counts |
Skip Shift Sol. | F | Eng 1 | Enable/Disabled | Disabled
Spark | B,D,F,Y | Eng 1, 2 | Degrees | Varies
ST FT Avg. Bn 1 | B,D,F,Y | FT | Counts/Percentage |
ST FT Avg. Bn 2 | B,D,F,Y | FT | Counts/Percentage |
Start Up ECT | B,D,F,Y | Eng 1, 2 | C°/F° | Varies
TCC Brake Switch | B,D,F,Y | Eng 1 | Applied/Released | Released
TCC Duty Cycle | B,D,F,Y | Eng 1 | Disabled/Enable | Disabled
TCC Enable | B,D,F,Y | Eng 1 | Disabled/Enable | Disabled
TCC Stator Temp. | B,D | Eng 1 | Normal/High | Normal
Total Misfire | B,D,F,Y | Misfire | Counts | 0
TP Angle | B, D, F, Y | All | Percentage | 0%
TP Sensor | B,D,F,Y | Eng 1 | Volts | 0.55-0.90
TR Switch | B,D,F,Y | Eng 1 | Tramsmission Gear position | Park/Neut.
Traction Control | D,F,Y | Eng 1, 2 | Inactive/Active | Inactive
Vehicle Speed | B,D,F,Y | Eng 1 | MPH km/h | 0
Warm Up Cycles w/o Emis. Faults | B,D,F,Y | Eng 2 | Counts | 0-40
Warm Up cycle w/o Non-Emis. Faults | B,D,F,Y | Eng 2 | Counts | 0-40