EASE Scan Tool |ElmScan Scan Tool| About OBD2
AutoEnginuity™ Professional OBD2 Automotive Scan Tool
GM Enhanced Parameters
| # of 4x Ref Pulses Between CAM Counter | Long Term Fuel Trim B2 |
| # Of EGR Adaptive Learn Matrix Cells Out Of Range High | Long Term Fuel Trim B2 C |
| # Of EGR Adaptive Learn Matrix Cells Out Of Range Low | Long Term Fuel Trim Cruise |
| 1-2 Adapt High Cell | Long Term Fuel Trim Decal |
| 1-2 Adapt Low Cell | Long Term Fuel Trim Idle |
| 1-2 Shift Desired WOT RPM | Loop Status |
| 1-2 Shift Time | Low Spark Modifer |
| 1-2 Shift Time Error | Lowest EGR Pressure |
| 1-2 Shift WOT RPM Adapt | MAF Frequency |
| 2-1 Shift Time | MAF Frequency A |
| 2-3 Adapt High Cell | MAF Idle Diagnostic Full EGR |
| 2-3 Adapt Low Cell | MAF Idle Diagnostic No EGR |
| 2-3 Shift Time | Manifold Absolute Pressure |
| 2-3 Shift Time Error | Manifold Absolute Pressure A |
| 3-2 Shift Time | Manifold Absolute Pressure B |
| 3-4 Adapt High Cell | Manifold Absolute Pressure C |
| 3-4 Adapt Low Cell | MAP |
| 3-4 Shift Time | Mass Air Flow |
| 3-4 Shift Time Error | Mass Air Flow Raw Input Frequency |
| 4-3 Shift Time | Mass Air Flow S1 |
| A/C Evap Temp | Maximum Number of Failed Emission Tests out of Last 16 |
| A/C Highside Temperature | Maximum Throttle Position |
| A/C Lowside Temperature | Medium Resolution Engine Speed Activity |
| Abnormal/Misfire Test Ratio | Medium Resolution Re-Syncs Counter |
| Actual Diesel Injection Pump Timing | Mid Spark Modifier |
| Actual EGR Position | Mileage Since First Fail |
| Actual EGR Position | Mileage Since First Fail |
| Adaptive Knock Retardr | Mileage Since Last Code Clear |
| Air Conditioner Pressure | Mileage Since Last Fail |
| Air Fuel Ratio | Minimum Throttle Position |
| Air Pump Diag. Percent Lean Time | Misfire Current #1 |
| Air Pump Diag. Percent Rich Time | Misfire Current #2 |
| Air Pump Diagnostic Active Time | Misfire Current #3 |
| Alternator F-Terminal Voltage or Generator PWM | Misfire Current #4 |
| APP Average | Misfire Current #5 |
| APP Indicated Angle | Misfire Current #6 |
| APP S1 Angle | Misfire Current #8 |
| APP S1 Volts | Misfire Current Cylinder #1 |
| APP S2 Angle | Misfire Current Cylinder #2 |
| APP S2 Volts | Misfire Current Cylinder #3 |
| APP S3 Angle | Misfire Current Cylinder #4 |
| APP S3 Volts | Misfire Current Cylinder #5 |
| ATC Slip Speed | Misfire Current Cylinder #6 |
| Average Air Flow When Rear O2 Went Active | Misfire Current Cylinder #7 |
| Averaged Front Oxygen Sensor | Misfire Current Cylinder #8 |
| Averaged Rear Oxygen Sensor | Misfire Cycle Delay Counter |
| B1 HO2S Crossover Counts | Misfire Failures |
| B2 HO2S Crossover Counts | Misfire History #1 |
| BARO | Misfire History #2 |
| Barometric Pressure | Misfire History #3 |
| Barometric Pressure A | Misfire History #4 |
| Battery Voltage | Misfire History #5 |
| BLM Cell 0 Closed Throttle Low MAP | Misfire History #6 |
| BLM Cell 1 Closed Throttle Low MAP | Misfire History #7 |
| BLM Cell 2 Open Throttle Low MAP | Misfire History #8 |
| BLM Cell 3 Open Throttle Hight MAP | Misfire History Cylinder #1 |
| Brake Booster Vacuum | Misfire History Cylinder #2 |
| Calculated A/C Load | Misfire History Cylinder #3 |
| Calculated Air Flow | Misfire History Cylinder #4 |
| Calculated ECT | Misfire History Cylinder #5 |
| Calculated EGR Percent | Misfire History Cylinder #6 |
| Calculated Engine Torque | Misfire History Cylinder #7 |
| Calculated Vacuum | Misfire History Cylinder #8 |
| CAM Engine Speed Activity | No Results Counter |
| CAM Re-Syncs Counter | Non-Driven Wheel Speed |
| CAM Signal Input - High | Number of Catalyst Tests B1 |
| CAM Signal Input - Low | Number Of DTC(s) |
| Catalyst Damaging Misfire | Number of Fail Emission MIS Tests out of Las 16 |
| Catalyst EWMA Samples | Number of Failed Catalyst Misfire Tests of Last 16 |
| Catalyst Monitor Average Deviation | Number of Failed Catalyst Misfire Tests of Last 16 Since Code Clear |
| Catalyst Monitor EWMA Sample Counter B1 | Number of Misfires |
| Catalyst Monitor Filtered Deviation Difference | O2 Average Bias Voltage |
| Catalyst Monitor Non-Volatile Average Airflow | O2 Heater Time to Activity B2S3 |
| Catalyst Monitor Non-Volatile Storage of Converter Temperature at Idle | O2 Heater Time to Activity B2S3 |
| Catalyst Monitor Oxygen Storage Difference Value | O2 Heater Time to Activity S1 |
| Catalyst Monitor Oxygen Storage EWMA Value | O2 Heater Time to Activity S2 |
| Closed Loop Integrator Value | O2 Lean/Rich Average Time |
| CMP Retard | O2 Lean/Rich Transitions |
| CMP Retard A | O2 Response Lean to Rich Switches B1S1 |
| Command Line Pressure | O2 Response Lean to Rich Switches B1S2 |
| Controlled Canister Perge Soleniod | O2 Response Lean to Rich Switches B2S1 |
| Converter Test Samples | O2 Response Lean to Rich Transition Time B1S1 |
| Coolant Gauge Command | O2 Response Rich to Lean Average Time B2S1 |
| Crank Ref Missed (Diesel) TDC Offset | O2 Response Rich to Lean Switches B1S1 |
| Cruise Delta | O2 Response Rich to Lean Switches B1S2 |
| Cruise Switch A/D Input Voltage | O2 Response Rich to Lean Switches B2S1 |
| Cruise Vehicle Set Speed | O2 Response Rich to Lean Transition Time B1S1 |
| Current Command Gear | O2 Response Rich to Lean Transition Time B1S2 |
| Current Gear | O2 Response Rich to Lean Transition Time B2S1 |
| Current Gear | O2 Response Rich to Lean Transition Time B2S1 A |
| Current Gear B | O2 Rich/Lean Average Time |
| Current IAC Memory | O2 Rich/Lean Transitions |
| Current Octane Level | O2 Sensor - B1S1 (%) |
| Current TAP Cell | O2 Sensor - B1S1 (mV) |
| Cycles of Misfire Data | O2 Sensor - B1S1 (mV) A |
| Cycles of Misfire Data A | O2 Sensor - B1S2 (%) |
| Cylinder Air | O2 Sensor - B1S2 (mV) |
| Cylinder Air | O2 Sensor - B1S2 (mV) |
| Cylinder Mode Misfire Index | O2 Sensor - B1S3 % |
| Cylinder Mode Misfire Index A | O2 Sensor - B1S3 Mv |
| Cylinder Mode Misfire Index Level (1st peak) | O2 Sensor - B1S4 % |
| Default: Force Motor Commanded Current | O2 Sensor - B2S1 % |
| Delivered Engine Torque | O2 Sensor - B2S1 Mv |
| Delivered Torque | O2 Sensor - B2S2 % |
| Desired Air Fuel Ratio | O2 Sensor - B2S2 Mv |
| Desired Diesel Injection Pump Timing | O2 Sensor - B2S3 % |
| Desired EGR Position | O2 Sensor - B2S4 % |
| Desired EGR Position A | OBD Requirements |
| Desired Gear Turbine Slip Speed | Odometer |
| Desired IAC Position | Odometer |
| Desired Idle | Output Speed |
| Desired Idle Air Control Airflow | Output Speed A |
| Desired Idle Speed | Outside Air Temperature |
| Desired Linear EGR Position | Pass Counter |
| Desired Torque | Passkey II Input Time Period |
| Desired Torque Level | PC Solenoid Duty Cycle |
| Diesel Fuel Injection Pump Solenoid Closure Time | PCS Actual Current |
| ECT | PCS Desired Current |
| ECT A | PCS Duty Cycle |
| ECT at Misfire | Present Gear Ratio |
| ECT at Startup | Pressure Control Actual Current |
| ECT Sensor | Pressure Control Reference Circuit |
| EGR Adaptive Learn matrix Cell Number | Pressure Torque Signal |
| EGR Decel EWMA Threshold | Puge Learned Memory |
| EGR Decel Filter | Purge Long Term Fuel Trim #1 |
| EGR Delta MAP Calculation | Purge Long Term Fuel Trim #2 |
| EGR Duty Cycle | Purge Long Term Fuel Trim #3 |
| EGR Pintle position | Purge Long Term Fuel Trim #4 |
| EGR Pintle Position Error | Rear O2 Current Non-Volatile |
| EGR Pressure Delta | Rear O2 Fail Time Left |
| EGR Test Count | Rear O2 Time to Activity |
| Engine Load | Rear Propshaft Speed |
| Engine Load at Misfire | Ref. Low Voltage |
| Engine Oil Life Remaining | Revolution Mode Misfire Index |
| Engine Oil Pressure | Revolution Mode Misfire Index (Balance Time) |
| Engine Oil Temperature | Revolution Mode Misfire Index Level |
| Engine RPM/MPH Ratio | Rich/Lean to Lean/Rich Ratio Sen. 1 |
| Engine Run Time | Service Spark Retard |
| Engine Speed | Shift Adapt pressure |
| Engine Speed A | Shift Delay |
| Engine Speed at Misfire | Shift Delay |
| Engine Speed B | Shift Delay |
| Engine Torque | Shift Error 1-2 |
| Engine Torque A | Shift Error 2-3 |
| ESC Diagnostic Pass Counter | Shift Pressure |
| EST1 Volts at Fail | Shift RPM |
| EST2 Volts at Fail | Shift Time 1 2 |
| Evap Duty Cycles | Shift Time 2 3 |
| Evap Tamk Vacuum Decay Slope | Shift Time 3-4 |
| Evap Tamk Vacuum Decay Slope | Shift Time Error for 1-2 Shift |
| Evap Tank Pressure Decay Slope | Shift Time Error for 2-3 Shift |
| Evap Tank Vacuum Decay Slope | Shift Time Error for 3-4 Shift |
| Evap Tank Vacuum Filtered A | Shift Time Error for Latest Shift |
| Evap Tank Vacuum Filtered B | Shift Time Pressure Error |
| EVO Duty Cycle | Shift Torque |
| EVO Feedback Voltage | Short Term Fuel Trim B1 |
| Fail Counter | Short Term Fuel Trim B1 |
| Force Motor Actual Current | Short Term Fuel Trim B1 B |
| Force Motor Current Error | Short Term Fuel Trim B2 |
| Force Motor Duty Cycle | Short Term Fuel Trim B2 |
| Front Propshaft Speed | Short Term Fuel Trim B2 B |
| Fuel Injection Pump Injection Angle | Slip Adapt PWM |
| Fuel Level | Spark |
| Fuel Level A | Spark Advance |
| Fuel Level Sensor | Speed Ratio |
| Fuel Level Sensor Right Tank | Speed Ratio A |
| Fuel Pressure (Gage) | Start Up ECT |
| Fuel Pump Voltage Feedback | Start Up ECT |
| Fuel Rate | Start Up ECT |
| Fuel Tank Level Remaining | Start Up Intake Air Temperature |
| Fuel Tank Pressure | Start Up Intake Air Temperature |
| Fuel Tank Pressure A | Startup Coolant Temperature |
| Fuel Temperature | Steady State Adapt 2nd Gear |
| Fuel Trim Cell | Steady State Adapt Pressure |
| Fuel Trim Cell B1 | Steady State Adaptive-1st Gear |
| Fuel Trim Cell B2 | Steady State Adaptive-2nd Gear W/TCC |
| Fuel Trim Index | Steady State Adaptive-3rd Gear |
| Fuzzy Down Shift Quadrant | Steady State Adaptive-3rd Gear W/TCC |
| Garage Shift Adapt | Steady State Adaptive-4th Gear |
| Garage Shift Adapt-Drive High | Steady State Adaptive-4th Gear W/TCC |
| Garage Shift Adapt-Drive Low | Steady State Adaptive-Reverse |
| Garage Shift Adapt-Reverse High | Steady State Mode |
| Garage Shift Adapt-Reverse Low | Steady State Slip Accumulator |
| Gear Box Ratio | SuperCharger Boost |
| Gear Box Ratio | TAC Module Calibrated ID |
| Gear Box Torque | TAC Module S/W Level |
| Glow Plug Voltage | TCC Apply Time |
| Grade Load Shift Quadrant | TCC Duty Cycle |
| High Cell Data Pressure | TCC Mode |
| High MAP RAT Fail Count | TCC Pressure Commanded |
| High Spark Modifier | TCC PWM Duty Cycle |
| HO2S B1S1 (Mv) | TCC Slip |
| HO2S B1S2 (Mv) | TCC Slip Speed |
| HO2S B2S1 (Mv) | TCC Slip Speed |
| HO2S B2S2 (Mv) | TDC Offset |
| HO2S S3 B1 (mV) | Throttle Angle At Shift |
| IAC Learned Position with A/C | Throttle Position |
| IAC Motor Desired Position | Throttle Position |
| IAC Motor Position | Throttle Position |
| IAC Position | Throttle Position #2 or Applied Pedal Position |
| IAT Sensor | Throttle Position #3 or Applied Pedal Position |
| Idle Air Control Motor Position | Throttle Position Angle |
| Idle Diagnostic Filtered RPM Error | Throttle Position Desired Angle |
| Ignition 0 Input Voltage | Throttle Position Sensor |
| Ignition 0 Voltage | Throttle Position Sensor Normalized in Degrees |
| Ignition 1 Voltage | Throttle Position Sensor Normalized in Percent |
| Ignition Cycle Counter | Throttle Position Voltage |
| Ignition Timing Advance | Time of Latest 1-2 Shift |
| Ignition Voltage | Time of Latest 2-3 Shift |
| Injection Pump CAM Ref Missed | Time of Latest 3-4 Shift |
| Injector Pulse Width #1 | Time of Latest Shift |
| Injector Pulse Width #2 | Torque Management Spark Retard |
| Injector Pulse Width #3 | Total Misfire Current Count |
| Injector Pulse Width #4 | Total Misfire Current Count |
| Injector Pulse Width B1 | Total Misfire Failures Since First Fail |
| Injector Pulse Width B2 | Total Misfire Pass |
| Injector PWM Average B1 | Total Misfire Passes Since First Fail |
| Injector PWM Average B1 | Total Misfires per Test Special |
| Injector PWM Average B2 | TP Angle |
| Injector PWM Average B2 | TP Sensor |
| Intake Air Temperature | Traction Control Delivered Torque |
| Intake Air Temperature | Traction Control Shift Quadrant |
| Intake Air Temperature B | Traction Control System PWM Input |
| Knock Retard | Transmission Diagnostic Code Set |
| Knock Retard A | Transmission Fluid Temperature |
| Knock Retard B | Transmission Input Shaft Speed |
| Knock Retard C | Transmission Oil Life |
| Knock Sensor | Transmission Oil Temperature |
| Knock Sensor Active Counter | Transmission Oil Temperature |
| Knock Sensor Active Counter | Transmission Output Shaft Speed |
| Knock Sensor Activity | Transmission Pressure |
| Knock Sensor Minimum Learned Noise | Transmission Steady State Clutch Slip Speed |
| Knock Sensor Noise Channel | Transmission Temp |
| Knock Sensor Voltage | Transmission Temp Sensor |
| Knock/Octane Adjust | Turbine Speed |
| KS Adjust Factor | Turbo Boost Pressure |
| Largest Positive MAF Error | TWC Monitor Average Deviation Difference Failure |
| Last Adapt Highest PWM | Vehicle Speed |
| Last Shift Time | Vehicle Theft Deterrent Auto Learn Counter |
| Last Shift Time Error | Vehicle Theft Deterrent Seed and KeyTimer |
| Last Tap | Vehicle Theft Deterrent Timer |
| Lift Pump Volts | Warm Up Cycles Without a Non-Emission Fault |
| Linear EGR Closed Valve Pintel Position | Warm Up Cycles Without an Emission Fault |
| Linear EGR Feedback | Wheel Acceleration Accel/Decel |
| Linear EGR Normalized | Z-Body: Filtered Grade Load |
| Long Term Fuel Trim Accel | Z-Body: shift Fail Counter |
| Long Term Fuel Trim B1 | Z-Body: Steady State Ratio Fail Counter |
| Long Term Fuel Trim B1 | |
| Long Term Fuel Trim B1 B | |
| Long Term Fuel Trim B2 |
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