This Typical Scan Tool Data Values table contains all engine related parameters that are available on the scan tool. The list is 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. The Engine and Misfire data list, typical values and data definitions are covered in Engine Controls.
Use the Typical Scan Tool Data Values table only after the following is determined:
| • | Powertrain or Transmission On-Board Diagnostic System Check is completed. |
| • | No Diagnostic Trouble Codes (DTCs) are set. |
| • | The on-board diagnostics are functioning properly. |
Important: Do not use a scan tool that displays faulty data. Report the scan tool problem to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.
Scan tool values from a properly operating vehicle may be used for comparison with the vehicle you are diagnosing. The Typical Scan Tool Data Values table represents values that would be seen on a normally operating vehicle.
Only the parameters listed below are in this service manual for use in diagnosis. For further information on using the scan tool in order to diagnose the TCM and related components, refer to the applicable reference section listed below. If all values are within the typical range described below, refer to Symptoms Table for diagnosis.
The Data List column 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 information is a description of each term listed:
| • | All = The Parameter is in all data lists indicated below. |
| • | Eng 1 = Engine 1 Data List |
| • | Misfire = Misfire Data List |
| • | FF = Freeze Frame Data List |
| • | Trans 1 = Transmission 1 Data List |
For Cold Key On, Cold Idle and Hot Idle: Vehicle in Park, A/C turned Off, no power steering load, all accessories Off, brake pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned On and no power steering load. Compare data after driving approximately 1 mile. | |||||||
|---|---|---|---|---|---|---|---|
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise | |
A/C Load Signal | Heavy/Normal | Eng 1 | -- | Normal | Varies | Normal | |
A/C Compressor Control | A/C On / A/C Off | Eng 1 | -- | Yes | Yes | Yes | |
A/C Request | Yes/No | Eng 1 | -- | -- | -- | -- | |
Actual MAF at Idle | g/s | Eng 1 | -- | -- | -- | -- | |
Avg. Inj. Pulse at Idle | ms | Eng 1 | -- | -- | -- | 2 | |
Battery Voltage | Volts | Eng 1 | -- | -- | 13.3 | 13.6 | |
Calc Converter Temp | °C (°F) | Misfire | -- | -- | -- | -- | |
Cam Signal Present | Low/High | Eng 1 | -- | -- | -- | Toggles | |
Compensation Gradient | H2O | Misfire | -- | -- | -- | -- | |
Desired MAF at Idle | g/s | Eng 1 | -- | -- | -- | -- | |
Desired Idle Speed | RPM | Eng 1 | 920 | 700-1200 | 550-675 | -- | |
ECT | °C (°F) | Eng 1 | -20 - 50°C (-4-122°F) | -20 - 50°C (-4-122°F) | 90 - 110°C (194-280°F) | 90 - 110°C (194-280°F) | |
ECT Sensor | Volts | Eng 1 | -- | -- | -- | 0.89 | |
Engine Load Signal | ms | Eng 1 | -- | -- | -- | 1.35 | |
Engine Speed | RPM | Eng 1 | 0 | -- | -- | 2080 | |
EVAP Canister Vent Valve | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
EVAP Leakage Factor | -- | Eng 1 | -- | -- | -- | -- | |
EVAP Purge Valve | % | Eng 1 | -- | -- | -- | Varies | |
EVAP System Ready | No/Yes | Eng 1 | -- | -- | -- | Varies | |
Fuel Level Output | Volts | Eng 1 | -- | -- | -- | 1.86 | |
Fuel Pump Relay | ON/OFF | Eng 1 | -- | -- | -- | ON | |
Fuel Tank Pressure | in. H2O | Eng 1 | -- | -- | -- | 0.92 | |
Fuel Tank Pressure | Volts | Eng 1 | -- | -- | -- | 2.76 | |
HO2S Bank 1 Sensor 1 | mV | Eng 1 | 450 | Varies | Varies | Varies | |
HO2S Bank 1 Sensor 2 | mV | Eng 1 | 450 | Varies | Varies | Varies | |
HO2S Bank 2 Sensor 1 | mV | Eng 1 | 450 | Varies | Varies | Varies | |
HO2S Bank 2 Sensor 2 | mV | Eng 1 | 450 | Varies | Varies | Varies | |
HO2S Bn 1 and Bn2 Ready | No/Yes | Eng 1 | -- | -- | -- | Varies | |
HO2S Heaters Ready | Yes/No | Eng 1 | -- | -- | -- | -- | |
HO2S Statues Bank 1 | Lean/Rich | Eng 1 | -- | Toggles | Toggles | Toggles | |
HO2S Status Bank 2 | Lean/Rich | Eng 1 | -- | Toggles | Toggles | Toggles | |
IAC Long Term AIr Trim | % | Eng 1 | -- | -- | -- | 2 | |
IAC Pulse Ratio | % | Eng 1 | -- | -- | -- | 4 | |
IAC Short Term Air Trim | % | Eng 1 | -- | -- | -- | 0 | |
IAT | °C (°F) | Eng 1 | Close to Outside Air Temperature | -20 - 50°C (-4-122°F) | 0 - 90°C (32-194°F) | Close to Outside Air Temperature | |
IAT Sensor | Volts | Eng 1 | -- | -- | -- | 2.8 | |
Ignition Coil 1 and 4 | Active/Inactive | Eng 1 | -- | Toggles | Toggles | Toggles | |
Ignition Coil 2 and 5 | Active/Inactive | Eng 1 | -- | Toggles | Toggles | Toggles | |
Ignition Coil 3 and 6 | Active/Inactive | Eng 1 | -- | Toggles | Toggles | Toggles | |
Int Plenum Sw Valve | Open/Closed | Eng 1 | -- | -- | -- | Open | |
Int Reson Sw Valve | Open/Closed | Eng 1 | -- | -- | -- | Closed | |
Knock Signal Present | No/Yes | Eng 1 | No | Varies | Varies | No | |
Knock Retard | Degrees | Eng 1 | 0.0 | 0.0 | 0.0 | 0.0 | |
Lean/Rich Avg. Bn 1 | secs | Eng 1 | -- | -- | -- | -- | |
Lean/Rich Avg. Bn 2 | secs | Eng 1 | -- | -- | -- | -- | |
Long Term Add. FT Bn 1 | ms | Eng 1 | 0 | 15 | 15 | Varies | |
Long Term Add. FT Bn 2 | ms | Eng 1 | 0 | 15 | 15 | Varies | |
Long Term Mult. FT Bn 1 | % | Eng 1 | 0 | 15 | 15 | Varies | |
Long Term Mult. FT Bn 2 | % | Eng 1 | 0 | 15 | 15 | Varies | |
Loop Status Bank 1 | Open/Closed | Eng 1 | -- | -- | -- | Closed | |
Loop Status Bank 2 | Open/Closed | Eng 1 | -- | -- | -- | Closed | |
MAF | Volts | Eng 1 | -- | -- | -- | 1.4 | |
MIL | Off/On | Eng 1 | -- | -- | -- | Off | |
MIL Request | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Misfire Current Cyl #1 | counts | misfire | 0 | 0 | 0 | 0 | |
Misfire Current Cyl #2 | counts | misfire | 0 | 0 | 0 | 0 | |
Misfire Current Cyl #3 | counts | misfire | 0 | 0 | 0 | 0 | |
Misfire Current Cyl #4 | counts | misfire | 0 | 0 | 0 | 0 | |
Misfire Current Cyl #5 | counts | misfire | 0 | 0 | 0 | 0 | |
Misfire Current Cyl #6 | counts | misfire | 0 | 0 | 0 | 0 | |
Number of DTCs | -- | Eng 1 | -- | -- | -- | -- | |
Park/Nuetral Switch | P-N/R-D-3-2-1 | Eng 1 | -- | -- | -- | R-D-3-2-1 | |
Sec AIR Pump Relay | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Sec AIR System Ready | No/Yes | Eng 1 | -- | -- | -- | Varies | |
Short Term FT Bank 1 | % | Eng 1 | -- | -- | -- | Varies | |
Short Term FT Bank 2 | % | Eng 1 | -- | -- | -- | Varies | |
Calc Full Pos Switch | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Calc Idle Pos. Switch | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Spark | Degrees | Eng 1 | -15 | Varies | Varies | -39 | |
Calc Torque Reduction | steps | Eng 1 | -- | -- | -- | 0 | |
TC Torque Request | % | Eng 1 | -- | -- | -- | 8 | |
TCM Torque Red. Request | % | Eng 1 | -- | -- | -- | 13 | |
TCM Torque Red. Request | Yes/No | Eng 1 | -- | -- | -- | No | |
Theft Deterrent Status | No Signal/Correct Code/ | Eng 1 | -- | -- | -- | Correct Code | |
TP Normalized | % | Eng 1 | 0 | 0 | 0 | 4.0 | |
TP Sensor | Volts | Eng 1 | 0.63 | 0.63 | 0.63 | 0.76 | |
TP Signal | % | Eng 1 | 0 | 0 | 0 | 15 | |
Traction Control | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Traction Control Status | Active/Inactive | Eng 1 | -- | -- | -- | Inactive | |
Trans Torq Red Req | No/Yes | Eng 1 | -- | -- | -- | -- | |
TWC Bn1 and Bn2 Ready | No/Yes | Eng 1 | -- | -- | -- | Varies | |
Vacuum Decay Gradient | H2O | Misfire | -- | -- | -- | -- | |
Vehicle Speed | mph | Eng 1 | 0 | 0 | 0 | 55 | |
Vehicle Speed Pulse | Active/Inactive | Eng 1 | -- | -- | -- | Toggles | |
