The 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.
Use the 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 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. 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:
| • | All = The Parameter is in all data lists indicated below. |
| • | Eng 1 = Engine Data 1 List |
| • | Eng 2 = Engine Data 2 List |
| • | Eng 3 = Engine Data 3 List |
| • | EVAP = Enhanced EVAP Data |
| • | FT = Fuel Trim Data List |
| • | MF = Misfire Data List |
Scan Tool Parameter | Units Displayed | Data List | Typical Data Value |
|---|---|---|---|
Engine Idling/Normal Operating Temperature/Closed Throttle/Park or Neutral/Closed Loop | |||
12 Volt Reference | OK, Fault | Eng 1 | OK |
24X Crank Sensor (Data) | RPM | MF | Varies with RPM |
5 Volt Reference A | OK, Fault | Eng 1 | OK |
5 Volt Reference B | OK, Fault | Eng 1 | OK |
A/C Relay | On, Off | Eng 2 | OFF with A/C not selected. ON with A/C selected |
Actual EGR Position | % | Eng 2 | Varies |
Air Fuel Ratio | : 1 | Eng 1, FT, MF, EVAP | 14.5-14.9 |
Auto Learn timer | Inactive, Active | Eng 2 | Inactive |
BARO | Volts kPa | Eng 1, Eng 2, Eng 3, FT, MF | 65-105 kPa (Depends on altitude and barometric pressure) |
CKP Sensor Status | Angle, Time A, Time B | MF | Angle |
CMP Sensor (Data) | RPM | MF | Varies with RPM |
Crank Request | No, Yes | Eng 3 | No |
Cruise Inhibit Signal Command | No, Yes | Eng 3 | Yes |
Cruise Requested | No, Yes | Eng 3 | 1 |
Current Gear | 1,2,3,4 | Eng 2 | No |
Cycles of Misfire Data | MF | Varies | |
Desired EGR Position | % | Eng 2 | 0% |
Desired Idle Speed | RPM | Eng 1, Eng 2, FT | 650 RPM (±100 RPM) |
Desired Torque ABS/TCS | % | Eng 2 | 100% |
ECT | °C, °F | ALL | 90-100°C |
EGR Closed Pintle Pos. | Volts | Eng 2 | 0.65-0.80 |
EGR Pintle Position | Volts | Eng 2 | Same as EGR Closed Pintle Pos. |
Engine Load | % | Eng 1, Eng 2, Eng 3, FT, MF | 1-5 |
Engine Oil Level | OK, Low | Eng 3 | Ok |
Engine Oil Pressure | Ok, Low | Eng 3 | Ok |
Engine Run Time | hrs./min./sec | Eng 1, Eng 2, Eng 3, FT, EVAP | Depends on time since start-up |
Engine Speed | RPM | ALL | ±100 RPM from Desired Idle |
EVAP Canister Purge | % | Eng 1, FT, EVAP | 10-20% |
EVAP Purge Solenoid | On, Off | EVAP | ON with purge commanded. OFF with purge NOT commanded |
EVAP Test Abort Reason | Not Aborted Lost Enable Small Leak Veh. Not At Rest | EVAP | - |
EVAP Test Result | No Result Passed Aborted Fail - DTC P0440 Fail - DTC P0442 Fail - DTC P0446 Fail - DTC P1441 | EVAP | - |
EVAP Vent Sol. | Open, Closed | FT, EVAP | Open |
Extended Travel Brake | Released Applied | Eng 3 | Released |
Fuel Level | Liters, Gallons | EVAP | |
Fuel Pump Relay | On, Off | Eng 2 | On |
Fuel Tank Pressure | Volts / in H20, mmHg | EVAP | Varies |
Fuel Trim Cell | Cell # | Eng 2, FT | |
Generator L Terminal | OK No Output | Eng 1, Eng 3 | Ok |
Generator PWM | % | Eng 1 | Varies with commanded duty cycle of the generator field |
HO2S Bank 1 Sensor 1 | mV | Eng 1, FT, EVAP | Varying |
HO2S Bank 1 Sensor 2 | mV | Eng 1, Fuel Trim 1 | Varying |
HO2S Bank 2 Sensor 1 | mV | Eng 1, FT, EVAP | Varying |
HO2S Warm-Up Bn1 Sen2 | Seconds | FT | Depends on start-up ECT and the average MAF since start-up |
IAC Position | Counts | Eng 1, FT | |
IAT | °C, °F | ALL | Varies with temperature |
IC Ckt. Cyl. 1 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 2 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 3 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 4 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 5 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 6 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 7 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
IC Ckt. Cyl. 8 Status of Last Test | Pass, Open, Short to Ground, Short to Volts | Eng 3 | Pass |
Ignition 0 | On, Off | Eng 3 | On |
Ignition 1 | Volts | Eng 1, Eng 2, FT | 13-14.5 Volts |
Injector PWM Bank 1 | ms | FT | 3.00-3.75 |
Injector PWM Bank 2 | ms | FT | 3.00-3.75 |
IPC Fuel Disable | Inactive, Active | Eng 2 | Inactive |
Knock Retard | degrees | Eng 1, Eng 2, MF | 0 degrees |
Long Term FT Avg. Bn1 | % | FT | |
Long Term FT Avg Bn2 | % | FT | |
Long Term FT Bank 1 | % | Eng 1, FT, EVAP | -25% to 25% |
Long Term FT Bank 2 | % | Eng 1, FT, EVAP | -25% to 25% |
Loop Status | Open Loop, Closed Loop | Eng 1, FT, EVAP | Closed |
Loss of Match Counter | Counts | MF | Varies |
Low Res. Ref. Pulses | Counts | MF | Incrementing 1-8 |
Low Speed Fan Relay | On, Off | Eng 2 | On with fans commanded On. Off with fans commanded OFF |
MAF | g/s | Eng 1, Eng 2, FT, MF, EVAP | -- |
MAF Frequency | Hz | Eng 1, Eng 2 | 2800 |
MAP | Volts/kPa | Eng 1, Eng 2, Eng 3, FT, MF | 1-2V / 30-50 kPa (Depends on engine load and barometric pressure) |
Med. Res. Ref. Pulses | Counts | MF | RPM |
MIL | On, Off | Eng 2 | Off |
MIsfire Current Cyl. 1-8 | Counts | MF | 0-10 |
Misfire Cycle Delay Counter | Counts | MF | 0 |
Misfire History Cyl. 1-8 | Counts | MF | 0 |
Non-Driven Wheel Speed | km/h, mph | Eng 3 | 0 |
Odometer | km, miles | Eng 2, Eng 3 | Within 25.5 miles of IPC |
PCM Ride Control | Normal, Firm | Eng 2 | - |
Short Term FT Bank 1 | % | Eng 1, FT, EVAP | -8% to 8% |
Short Term FT Bank 2 | % | Eng 1, FT, EVAP | -8% to 8% |
Short Term FT Avg. Bn1 | % | FT | -- |
Short Term FT Avg. Bn2 | % | FT | -- |
SP/High Speed Fan Relays | On, Off | Eng 2 | Off |
Spark | degrees | Eng 1, Eng 2, FT, MF | Varies |
Start Up ECT | °C, °F | Eng 1 | Depends on ECT at start-up |
Starter Relay Status | On, Off | Eng 2, Eng 3 | Off |
TCC Brake Switch | Released, Applied | Eng 3 | Released |
TCC Slip Speed | RPM | Eng 2 | +15 to +50 |
Total Misfire Current Count | Counts | MF | 0 |
TP Angle | % | Eng 1, Eng 2, Eng 3, FT, MF | 0% |
TP Sensor | Volts | Eng 1 | 0.40-0.74V |
Traction Control Torque | % | Eng 3 | |
Vehicle Speed | km/h, mph | Eng 1, Eng 2, FT, EVAP | 0 |
VTD Password | OK, Incorrect | Eng 2 | OK |
