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:
- The Diagnostic System Check - Vehicle 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 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.
- Eng
-
Engine Data List
- EE
-
Enhanced Evaporative Emission (EVAP) Data
- FT
-
Fuel Trim Data List
- H2
-
Heated Oxygen Sensor (HO2S) Data List
- IG
-
Ignition System Data List
- MF
-
Misfire Data List
- OD
-
Output Driver Data List
- TAC
-
Throttle Actuator Control (TAC) Data List
Scan Tool Data List
| Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
| Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off | |||
| A/C Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| A/C Relay Command | MF, TAC | On/Off | Off |
| Air Flow Calculated | Eng, EE, FT, H2, MF, TAC | g/s | 6.7-7.2 |
| Air Fuel Ratio | ENG, FT, H2 | Ratio | 14.7:1 |
| Ambient Air Temp | Eng | °C/°F | Varies |
| APP Indicated Angle | All | 0-100% | 0% |
| APP Sensors | TAC | % | 0% |
| APP Sensor 1 | TAC | 0-5.0 Volts | 0.4-0.9 Volts |
| APP Sensor 2 | TAC | 5.0-0 Volts | 3.98-4.5 Volts |
| APP Sensor 1 | TAC | 0-100% | 0% |
| APP Sensor 2 | TAC | 0-100% | 0% |
| APP Sensor 1 and 2 | TAC | Agree/Disagree | Agree |
| APP Sensor 1 Indicated Position | TAC | % | 0% |
| APP Sensor 2 Indicated Position | TAC | % | 0% |
| BARO | Eng, EE, FT, H2, IG | kPa/Volts | 65-104 kPa/3.5-4.9 Volts Varies w/Altitude |
| BPP Circuit Signal | TAC | Applied/Released | Released |
| BPP Signal | Eng, TAC | Applied/Released/Invalid | Released |
| Calc TWC Temp Bank 1 | FT, MF | °C/°F | 475-525°C (900-950°F) |
| Calc TWC Temp Bank 2 | FT, MF | °C/°F | 475-525°C (900-950°F) |
| Catalytic Converter Protection Active | FT, H2 | Yes/No | No |
| CKP Active Counter | IG | Counts | Cycles 0-250 |
| CKP Resync Counter | IG | Counts | 0 |
| CKP Sensor | Eng, IG | RPM | Varies |
| CMP Active Counter | IG | Counts | Cycles 0-250 |
| CMP Sensor | Eng, IG, MF | RPM | Varies |
| Cold Start Up | Eng, EE | Yes/No | Varies |
| CPP Switch | TAC | Applied/Released | Applied |
| Cruise Control Active | TAC | Yes/No | No |
| Cycles of Misfire Data | MF | 0-100 Counts | Varies |
| Cylinder 1-8 IC Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Cylinder 1-8 Injector Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Decel Fuel Cutoff | Eng, FT, H2 | Active/Inactive | Inactive |
| Desired Idle Speed | Eng, EE, TAC | RPM | PCM Controlled |
| Distance Since DTC Cleared | Eng | Miles | Varies |
| EC Ignition Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| EC Ignition Relay Command | Eng, TAC | ON/OFF | OFF |
| EC Ignition Relay Feedback Signal | TAC | Volts | 11.5-14.5 Volts |
| ECM Reset | Eng, EE, IG, OD | Yes/No | No |
| ECT Sensor | All | -39 to +140°C (-38 to +284°F) | 88-105°C (190-221°F) |
| Engine Load | All | 0-100% | 20-25% |
| Engine OFF EVAP Test Conditions Met | EE | Yes/No | Yes |
| Engine Oil Level Switch | Eng | OK/Low | OK |
| Engine Oil Pressure Sensor | Eng, MF | kPa/psi | 30-34 psi (218-230 kPa) |
| Engine Run Time | All | Hrs, Min, Sec | Varies |
| Engine Speed | All | 0-10,000 RPM | 500-700 RPM |
| Engine Speed Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| EVAP Purge Solenoid Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| EVAP Purge Solenoid Command | Eng, EVAP, FT, H2 | 0-100% | 10-25% |
| EVAP Vent Solenoid Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| EVAP Vent Solenoid Command | Eng, EVAP | Not Venting/Venting | Venting |
| Ext Travel BPP Signal | TAC | Applied/Released/Invalid | Released |
| FC Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| 5-Volt Reference 1 | Eng, EE, IG, TAC | Volts | 4.5 Volts |
| 5-Volt Reference 2 | Eng, EE, IG, TAC | Volts | 4.5 Volts |
| Fuel Level Sensor Left | EVAP | 0-5 Volts | 0.7-2.5 Volts |
| Fuel Level Sensor Right | EVAP | 0-5 Volts | 0.7-2.5 Volts |
| Fuel Pump Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Fuel Pump Relay Command | Eng | ON/OFF | ON |
| Fuel Tank Level Remaining | Eng, EVAP, MF | 0-100% | Varies |
| Fuel Tank Pressure Sensor | Eng, EE | -32.7 to +14.0 mm/Hg (-17.5 to +7.5 in/H2O) | Varies |
| Fuel Tank Pressure Sensor | Eng, EE | 0-5.0 Volts | Varies |
| Fuel Tank Rated Capacity | EE | 69 Liters (18.2 Gallons) | - |
| Fuel Trim Cell | Eng, EE, FT | 0-23 | 16, 17 |
| Fuel Trim Learn | Eng, EE, FT | Enabled/Disabled | Enabled, May Toggle |
| Fuel Volatility | EE, FT, H2 | Low/Moderate/High | Varies |
| HO2S Bank 1 Sensor 1 | Eng, EE, FT, H2 | Millivolts | 10-1,000 mV and Varying |
| HO2S Bank 1 Sensor 1 Heater | H2 | Amps | 0.70-0.78 |
| HO2S Bank 1 Sensor 1 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| HO2S Bank 1 Sensor 1 Heater Command | H2 | % | 0% or 100% |
| HO2S Bank 1 Sensor 1 Heater Command | H2 | ON/OFF | ON |
| HO2S Bank 1 Sensor 2 | Eng, EE, FT, H2 | Millivolts | 10-1,000 mV and Varying |
| HO2S Bank 1 Sensor 2 Heater | H2 | Amps | 0.44-0.48 |
| HO2S Bank 1 Sensor 2 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| HO2S Bank 1 Sensor 2 Heater Command | H2 | % | 100% |
| HO2S Bank 1 Sensor 2 Heater Command | H2 | ON/OFF | ON |
| HO2S Bank 2 Sensor 1 | Eng, EE, FT, H2 | Millivolts | 10-1,000 mV and Varying |
| HO2S Bank 2 Sensor 1 Heater | H2 | Amps | 0.70-0.78 Amps |
| HO2S Bank 2 Sensor 1 Heater Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| HO2S Bank 2 Sensor 1 Heater Command | H2 | % | 100% |
| HO2S Bank 2 Sensor 1 Heater Command | H2 | ON/OFF | ON |
| HO2S Bank 2 Sensor 2 | Eng, EE, FT, H2 | Millivolts | 10-1,000 mV and Varying |
| HO2S Bank 2 Sensor 2 Heater | H2 | Amps | 0.42-0.48 Amps |
| HO2S Bank 2 Sensor 2 Heater Circuit Status | OD | HO2S Bank 2 Sensor 1 Heater | OK |
| HO2S Bank 2 Sensor 2 Heater Command | H2 | % | 100% |
| HO2S Bank 2 Sensor 2 Heater Command | H2 | ON/OFF | ON |
| Hot Open Loop | FT, H2 | Active/Inactive | Inactive |
| IAT Sensor | All | -39 to +140°C (-38 to +284°F) | 35°C (91°F) Depends on ambient temperature |
| Ignition Accessory Signal | Eng, TAC | ON/OFF | ON |
| Ignition 1 Signal | All | 0-25 Volts | 11.5-14.5 Volts |
| Inj. PWM Bank 1 Average | Eng, FT, H2 | Milliseconds | 2-6 |
| Inj. PWM Bank 2 Average | Eng, FT, H2 | Milliseconds | 2-6 |
| Knock Retard | IG | 0.0-16° | 0° |
| KS Active Counter | IG | Counts | 0 |
| KS Bank 1 Ckt Status | IG | OK/Fault/Incomplete | OK |
| KS Bank 2 Ckt Status | IG | OK/Fault/Incomplete | OK |
| KS Module Status | IG | OK/Fault/Incomplete | OK |
| Long Term FT Avg. Bn1 | Eng, EE, FT, H2 | Percentage | Near 0% |
| Long Term FT Avg. Bn2 | Eng, EE, FT, H2 | Percentage | Near 0% |
| Loop Status | Eng, EE, FT, H2 | Open/Closed | Closed |
| MAF Performance Test | FT | OK/Fault | OK |
| MAF Sensor | Eng, EE, FT, H2, IG, MF, TAC | Grams Per Seconds (g/s) | 1-9 g/s @ Idle, depends on altitude 15-26 g/s @ 2,500 RPM, depends on altitude |
| MAF Sensor | Eng, EE, FT, H2, MF | 0-31,999 Hz | 1,300-1,500 Hz |
| MAP Sensor | Eng, EE, FT, H2, IG, MF, TAC | kPa | 20-48 kPa |
| MAP Sensor | Eng, EE, FT, H2, MF, TAC | Volts | 1.0-2.0 Volts Varies with altitude |
| MIL Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd,/Open | OK |
| MIL Command | Eng, EE, IG | Off/On | Off |
| MIL Requested by DTC | Eng, EE, IG | Yes/No | No |
| Misfire Current Cyl. 1-8 | MF | 0-200 Counts | 0 |
| Misfire History Cyl. 1-8 | MF | 0-65,535 Counts | 0 |
| Power Enrichment | Eng, FT, H2, MF | Active/Inactive | Inactive |
| Reduced Engine Power | TAC | Yes/No | No |
| Short Term FT Bn1 Average | Eng, EE, FT, H2 | Percentage | Near 0% |
| Short Term FT Bn2 Average | Eng, EE, FT, H2 | Percentage | Near 0% |
| Spark | Eng, FT, H2, IG, MF | Degrees | 15-20 Degrees |
| Starter Relay Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Start Up ECT | EE, FT, H2 | F°/C° | Varies |
| Start Up IAT | H2 | °C/°F | Varies |
| TAC Forced Engine Shutdown | TAC | Yes/No | No |
| TAC Motor | TAC | Enabled/Disabled | Enabled |
| TAC Motor Command | TAC | % | 14-26% |
| TCS Torque Request Signal | TAC | 0-100% | 100% |
| TP Desired Angle | TAC | 0-100% | 0% |
| TP Indicated Angle | All | 0-100% | 0% |
| TP Sensor 1 | TAC | 0-5.0 Volts | 4.1-4.8 Volts |
| TP Sensor 1 Indicated Position | TAC | % | 7% |
| TP Sensor 2 | TAC | 5.0-0 Volts | 0.4-0.9 Volts |
| TP Sensor 2 Indicated Position | TAC | % | 7% |
| TP Sensor 1 | TAC | 0-100% | 7% |
| TP Sensor 2 | TAC | 0-100% | 7% |
| Torque Delivered Signal | TAC | 0-100% | Varies |
| Torque Management Spark Retard | IG | Degrees | 0 Degrees |
| Total Knock Retard | IG | Degrees | 0 Degrees |
| Total Misfire | MF | Counts | 0 |
| Traction Control Status | TAC | Active/Inactive | Inactive |
| TR Sw | Eng 2, EGR, FT | Transmission Gear Position | Varies |
| TWC Temp Calculated | FT, MF | °C/°F | 600-680°C (1,112-1,256°F) |
| Vacuum Calculated | Eng, FT | in Hg | 54-58 in Hg |
| Vehicle Speed Circuit Status | OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Vehicle Speed Sensor | All | km/h mph |
0 |
| Warm-Ups Since DTC Cleared | Eng | Counts | Varies |
| Warm-Ups w/o Emission Faults | Eng | 0-255 Counts | Varies |
| Warm-Ups w/o Non-Emission Faults | Eng | 0-255 Counts | Varies |
| Wide Open Throttle | TAC | Yes/No | No |