For 1990-2009 cars

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 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 conditions are determined:

• | The Diagnostic System Check - Vehicle is completed.

• | There are no diagnostic trouble codes (DTCs).

• | The on-board diagnostics are functioning correctly.

Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine.

Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in mis-diagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service information for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Controls, for diagnosis.

Parameter | Operating Conditions | Expected Value | Definition
--- | --- | --- | ---
Ignition is ON, engine OFF, and vehicle is stationary
1-2 Shift Time | -- | 0.00 Sec | The scan tool will display the time taken to shift from 1st to 2nd gear.
1-2 Shift Time Error | -- | 0.00 Sec |
1-2 TAP Cell 1 | -- | kPa |
1-2 TAP Cell 2 | -- | kPa |
1-2 TAP Cell 3 | -- | kPa |
1-2 TAP Cell 4 | -- | kPa |
1-2 TAP Cell 5 | -- | kPa |
1-2 TAP Cell 6 | -- | kPa |
1-2 TAP Cell 7 | -- | kPa |
1-2 TAP Cell 8 | -- | kPa |
1-2 TAP Cell 9 | -- | kPa |
1-2 TAP Cell 10 | -- | kPa |
1-2 TAP Cell 11 | -- | kPa |
1-2 TAP Cell 12 | -- | kPa |
1-2 TAP Cell 13 | -- | kPa |
1-2 TAP Cell 14 | -- | kPa |
1-2 TAP Cell 15 | -- | kPa |
1-2 TAP Cell 16 | -- | kPa |
1-2 TAP Cell 17 | -- | kPa |
2-3 Shift Time | -- | 0.00 Sec | The scan tool will display the time taken to shift from 2nd to 3rd gear.
2-3 Shift Time Error | -- | 0.00 Sec |
2-3 TAP Cell 1 | -- | kPa |
2-3 TAP Cell 2 | -- | kPa |
2-3 TAP Cell 3 | -- | kPa |
2-3 TAP Cell 4 | -- | kPa |
2-3 TAP Cell 5 | -- | kPa |
2-3 TAP Cell 6 | -- | kPa |
2-3 TAP Cell 7 | -- | kPa |
2-3 TAP Cell 8 | -- | kPa |
2-3 TAP Cell 9 | -- | kPa |
2-3 TAP Cell 10 | -- | kPa |
2-3 TAP Cell 11 | -- | kPa |
2-3 TAP Cell 12 | -- | kPa |
2-3 TAP Cell 13 | -- | kPa |
2-3 TAP Cell 14 | -- | kPa |
2-3 TAP Cell 15 | -- | kPa |
2-3 TAP Cell 16 | -- | kPa |
2-3 TAP Cell 17 | -- | kPa |
3-2 Downshift Solenoid | -- | On/Off |
3-2 Downshift Solenoid Circuit | -- | On/Off |
3-4 Shift Time | -- | 0.00 Sec | The scan tool will display the time taken to shift from 3rd to 4th gear.
3-4 Shift Time Error | -- | 0.00 Sec |
3-4 TAP Cell 1 | -- | kPa |
3-4 TAP Cell 2 | -- | kPa |
3-4 TAP Cell 3 | -- | kPa |
3-4 TAP Cell 4 | -- | kPa |
3-4 TAP Cell 5 | -- | kPa |
3-4 TAP Cell 6 | -- | kPa |
3-4 TAP Cell 7 | -- | kPa |
3-4 TAP Cell 8 | -- | kPa |
3-4 TAP Cell 9 | -- | kPa |
3-4 TAP Cell 10 | -- | kPa |
3-4 TAP Cell 11 | -- | kPa |
3-4 TAP Cell 12 | -- | kPa |
3-4 TAP Cell 13 | -- | kPa |
3-4 TAP Cell 14 | -- | kPa |
3-4 TAP Cell 15 | -- | kPa |
3-4 TAP Cell 16 | -- | kPa |
3-4 TAP Cell 17 | -- | kPa |
5V Reference Voltage Circuit 1 |  | Valid | This parameter displays the voltage sensed on the 5-volt reference 1 circuit at the engine control module.
| Invalid
5V Reference Voltage Circuit 2 |  | Valid | This parameter displays the voltage sensed on the 5-volt reference 2 circuit at the engine control module.
| Invalid
5V Reference Voltage Circuit 3 |  | Valid | This parameter displays the voltage sensed on the 5-volt reference 3 circuit at the engine control module.
| Invalid
A/C Cutoff Mode (Air Conditioning) |  | Inactive |
| Pressure
| Max. Acceleration
| Active
A/C Disengagement 1st History |  | Present | The parameter displays the last 8 air conditioning (A/C) compressor disengages in order from 1 to 8 with 8 being the most recent. There are about 8 possible causes for the A/C compressor to disengage.
| Not Present
A/C Disengagement 2nd History |  | Present
| Not Present
A/C Disengagement 3rd History |  | Present
| Not Present
A/C Disengagement 4th History |  | Present
| Not Present
A/C Disengagement 5th History |  | Present
| Not Present
A/C Disengagement 6th History |  | Present
| Not Present
A/C Disengagement 7th History |  | Present
| Not Present
A/C Disengagement 8th History |  | Present
| Not Present
A/C Pressure Sensor | -- | 0 - 3,450 kPa | This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the engine control module.
A/C Pressure Sensor | -- | 0 - 5 Volts | The scan tool displays 0-5 Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
A/C Request (Air Conditioning) | -- | On | This parameter displays the state of the A/C request input to the engine control module from the heating, ventilation, and air conditioning (HVAC) controls.
Off
Actual Air/Flow Ratio | -- | 0.00 :1 Ratio | This parameter displays the ratio of air to fuel as calculated by the engine control module based on various sensor inputs. The scan tool will display a lower air fuel ratio when a richer air to fuel mixture is commanded. The scan tool will display a higher air fuel ratio when a leaner air to fuel mixture is commanded. In closed loop operation the air fuel ratio should normally be around 14.2-14.7 to 1.
Actual Gear | Current Gear Selection | PRNDL | The scan tool will display the currently selected gear
Actual Torque | -- | 0 - 100 % | This parameter indicates the percentage of available torque requested from the engine to the transmission as calculated by the engine control module. The scan tool will display a higher value for higher torque, and a lower value for lower torque.
Alternator F Terminal | -- | 0 - 100 % | This parameter displays the commanded state of the generator by the engine control module. A High value indicates a high charging command, and a low value indicates a low charging command.
Alternator L Terminal Circuit | -- | On/Off | This parameter displays if the engine control module is allowing the generator to operate. The scan tool displays ON if the generator is allowed to operate. The scan tool displays OFF if the engine control module is disabling the generator.
Alternator L Terminal Duty Cycle | -- |  |
Ambient Temperature | -- | ° C | This parameter displays the ambient, outside, air temperature as calculated by the engine control module.
APP Sensor (Acceleration) | -- | 0 - 100 % | This parameter displays the angle of the accelerator pedal position (APP) sensor 1 as calculated by the engine control module using the signal from the APP sensor 1. APP sensor 1 is a range of values indicating a low percentage when the accelerator pedal is not pressed to a high percentage when the accelerator pedal is fully pressed.
APP Sensor 1 (Acceleration) | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
APP Sensor 1-2 (Acceleration) | -- | Ok/Fault/Indeterminate | This parameter displays Disagree if the engine control module detects the signal voltage from APP sensor 1 is not in correct relationship to APP sensor 2. The scan tool displays Agree under the normal operating conditions.
APP Sensor 2 (Acceleration) | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
AT Input Speed (Automatic) | -- | RPM | The scan tool displays the AT Input Speed in revolutions per minute.
AT Output Speed (Automatic) | -- | RPM | The scan tool displays the AT Output Speed in revolutions per minute.
B1 Actual Intake Camshaft Position | -- | ° CA |
B1 Catalyst Temperature | -- | ° C | This parameter displays the B1 catalytic converter temperature as calculated by the engine control module.
B1 Command Intake Camshaft Position | -- | 0 - 100 % | This parameter displays the intake camshaft position in percent of range as commanded by the engine control module.
B1 Command Intake Camshaft Position | -- | Degrees | This parameter displays the actual intake camshaft position in degrees.
B1 Intake Camshaft Position Sensor | -- | Counts |
B1 Intake Camshaft Position Solenoid | 0 - 100 % | 0 - 100 % |
B1 LTFT Cruise/Acceleration | 0 - 100 % |  |
B1 LTFT Idle/Deceleration | 0 - 100 % |  |
B1 Short Term Fuel Trim | 0 - 100 % |  |
B1 Total Fuel Trim | 0 - 100 % |  |
B1S1 o2 Sensor - Bank 1 Sensor 1 | -- | Ratio |
B1S1 o2 Sensor - Bank 1 Sensor 1 | -- | 0 - 100 % |
B1S2 o2 Sensor - Bank 1 Sensor 2 | -- | mVolts | This parameter displays the voltage from the signal produced by the heated oxygen sensor used to monitor catalyst efficiency for cylinder bank 1. The scan tool will display a low voltage reading when that cylinder bank is running lean. The scan tool will display a high voltage reading when that cylinder bank is running rich.
B2 Actual Intake Camshaft Position | -- | ° CA |
B2 Catalyst Temperature | -- | ° CA | This parameter displays the B1 catalytic converter temperature as calculated by the engine control module.
B2 Command Intake Camshaft Position | -- | 0 - 100 % | This parameter displays the intake camshaft position in percent of range as commanded by the engine control module.
B2 Command Intake Camshaft Position | -- | Degree | This parameter displays the actual intake camshaft position in degrees.
B2 Intake Camshaft Position Sensor | -- | Counts |
B2 Intake Camshaft Position Solenoid | -- |  |
B2 LTFT Cruise/Acceleration | -- | 0 - 100 % | The scan tool displays in %. This parameter is the long term fuel trim for this bank as calculated by the engine control module. The scan tool will display of more than 0 percent indicating that time is being added to the injector pulse width, increasing the amount of fuel to this bank of the engine. The scan tool will display a value of less than 0 indicating time is being subtracted from the injector pulse width, reducing the amount fuel to this bank of the engine. A value of 0 percent indicates no compensation is required to operate the engine at the desired air/fuel ratio.
B2 LTFT Idle/Deceleration | -- | 0 - 100 % |
B2 Short Term Fuel Trim | -- | 0 - 100 % |
B2 Total Fuel Trim | -- | 0 - 100 % |
B2S1 o2 Sensor - Bank 2 Sensor 1 | -- | Ratio |
B2S1 o2 Sensor - Bank 2 Sensor 1 | -- | 0 - 100 % |
B2S2 o2 Sensor - Bank 2 Sensor 2 | -- | mVolts |
Barometer Pressure | -- | kPa | This parameter displays the barometric pressure as calculated by the engine control module using the signal from the manifold absolute pressure (MAP) sensor measured when the ignition is turned on with the engine not running. The engine control module will update the barometric pressure during wide-open throttle (WOT) conditions. The scan tool will display a low value when the barometric pressure is low, and a high value when the barometric pressure is high.
Barometer Pressure | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
Brake Lamp Switch | -- | Active/Inactive | This parameter displays the state of the brake pedal position switch as determined by the brake pedal switch. The scan tool will display Applied when the brake pedal is depressed, and Released when the brake pedal is not depressed.
Calculated Air Flow | -- | g/s |
Calculated ECT - Closed | -- | Degrees | This parameter displays the modeled temperature that the engine control module calculates from air entering the engine, coolant temperature, and ambient air temperature. If the actual engine coolant temperature does not reach this calculated temperature within a predetermined amount of time, a DTC will set.
Calculated ECT - Thermostat | -- | Degrees | This parameter displays the modeled temperature that the engine control module calculates from air entering the engine, coolant temperature, and ambient air temperature. If the actual engine coolant temperature does not reach this calculated temperature within a predetermined amount of time, a DTC will set.
Calculated Pedal Position | -- | 0 - 100 % | This parameter displays the angle of the accelerator pedal as calculated by the engine control module using the signals from the accelerator pedal position sensors. The APP indicated angle is a range of values indicating a low percentage when the accelerator pedal is not pressed to a high percentage when the accelerator pedal is fully pressed.
Calculated Throttle Position | -- | 0 - 100 % | This parameter displays the angle of the throttle position (TP) sensor in percent. This information is calculated by the engine control module using the signal from the throttle position sensor. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.
Camshaft Active Count | -- | Counts | This parameter displays an incrementing counter when the engine control module receives a signal form the camshaft position (CMP) sensor.
CC Disengagement 1st History | -- | On/Off | The parameter displays the last 8 cruise control disengages in order from 1 to 8, with 8 being the most recent. There are about 33 possible causes for the cruise control to disengage.
CC Disengagement 2nd History | -- | On/Off
CC Disengagement 3rd History | -- | On/Off
CC Disengagement 4th History | -- | On/Off
CC Disengagement 5th History | -- | On/Off
CC Disengagement 6th History | -- | On/Off
CC Disengagement 7th History | -- | On/Off
CC Disengagement 8th History | -- | On/Off
Cold Start | -- | Yes/No | This parameter indicates whether the engine meets the conditions for a cold start-up during the present ignition cycle. The scan tool displays Yes when the conditions for a cold start-up are met during this ignition cycle. The scan tool displays No when the conditions for a cold start-up are not met during the present ignition cycle. Conditions for a cold start-up require the coolant temperature and the intake air temperature to be below a predetermined temperature and within a certain range of each other. These conditions must occur after the engine was warmed up to a specific temperature during the previous ignition cycle.
Commanded B1S1 o2 Sensor Heated | -- | Ratio |
Commanded B1S2 o2 Sensor Heated | -- | 0 - 100 % |
Commanded B2S1 o2 Sensor Heated | -- | 0 - 100 % |
Commanded B2S2 o2 Sensor Heated | -- | Ratio |
Commanded Gear | -- |  |
Coolant Temperature | -- | Degrees | This parameter displays the temperature of the engine coolant based on a voltage input from the engine coolant temperature (ECT) sensor to the engine control module. The scan tool will display a low value when the coolant temperature is low, and a high value when the coolant temperature is high.
Crank Request | -- | Active/Inactive | This parameter displays whether the ignition switch has been cycled to the crank position requesting the engine control module to activate the starter relay.
Crankshaft Active Count | -- | Counts | This parameter displays an incrementing counter when the engine control module receives a signal from the crankshaft position (CKP) sensor.
Crankshaft Resynchronis | -- | Counts | This parameter displays the number of times the engine control module re-syncs with the crankshaft position (CKP) sensor.
Cruise Control | -- | On/Off | This parameter displays the status of the cruise control system as determined by the engine control module. The scan tool will display On when the cruise control system is in control of vehicle speed. The scan tool will display Off when the cruise control system is not operating.
Cruise Control Active | -- | Yes/No | This parameter displays the status of the cruise control system as determined by the engine control module. The scan tool will display Yes when the cruise control system is in control of vehicle speed. The scan tool will display No when the cruise control system is not operating.
Cruise Control Disengagement | -- | Active/Inactive | This parameter displays the status of the Cruise Control Disengagement.
Cruise Control Switch | -- | Active/Inactive | This parameter displays the status of the Cruise Control Switch.
Cruise Resume/Acceleration Switch | -- | Active/Inactive | This parameter displays the status of the Cruise Resume/Acceleration switch.
Cruise Set/Deceleration Switch | -- | Active/Inactive | This parameter displays the status of the Cruise Set/Deceleration switch.
Current TAP Cell | -- | Counts |
Cycles of Misfire | -- | Number |
Cylinder 1 Ignition Circuit Status | -- | Complete/Incomplete |
Cylinder 1 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 1 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Cylinder 2 Ignition Circuit Status | -- | Complete/Incomplete |
Cylinder 2 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 2 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Cylinder 3 Ignition Circuit Status | -- | Complete/Incomplete | This parameter displays the state of the fuel injector control circuit. The parameter displays Incomplete if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays Complete until the control circuit has been commanded ON.
Cylinder 3 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 3 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Cylinder 4 Ignition Circuit Status | -- | Complete/Incomplete | This parameter displays the state of the fuel injector control circuit. The parameter displays Incomplete if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays Complete until the control circuit has been commanded ON.
Cylinder 4 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 4 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Cylinder 5 Ignition Circuit Status | -- | Complete/Incomplete | This parameter displays the state of the fuel injector control circuit. The parameter displays Incomplete if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays Complete until the control circuit has been commanded ON.
Cylinder 5 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 5 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Cylinder 6 Ignition Circuit Status | -- | Complete/Incomplete | This parameter displays the state of the fuel injector control circuit. The parameter displays Incomplete if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays Complete until the control circuit has been commanded ON.
Cylinder 6 Injector Circuit Status | -- |  | This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage. This parameter displays indeterminate until the control circuit has been commanded ON.
Cylinder 6 Knock Detected | -- | Yes/No | This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Dec. Fuel Cutoff (Deceleration) | -- | Active/Inactive | This parameter displays the status of the operating mode of the engine control module used to turn off the fuel injectors and the evaporative emission (EVAP) canister purge valve during certain deceleration conditions.
Desired Engine Idle Speed | -- | 744 RPM | This parameter displays the desired engine idle speed as commanded by the engine control module.
Desired Throttle Position | -- | 0 - 100 % | This parameter displays the angle of the throttle position (TP) in percent. This information is calculated by the engine control module using the signals from the throttle position sensors. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.
Distance Since DTC Cleared | -- | Km | This parameter displays the distance accumulated since an emission diagnostic trouble code was cleared. The scan tool will display increasing distance as the vehicle is driven.
DTC Set this Ignition | -- | No DTC/(#) DTCs | The scan tool will display the number of DCT's set during this ignition cycle.
Electronic Throttle Control Learn | -- | Counts |
Engine Control Ignition Relay | -- | On - Off | This parameter displays the state of the control circuit engine control module power relay as commanded by the engine control module. The scan tool displays ON with the engine running.
Engine Control Ignition Relay Circuit Status | -- | Complete/Incompete | This parameter displays the status of the output driver for the EC Ignition Relay control circuit. The scan tool will display Complete, Incomplete. The scan tool will display Complete if the circuit is operating correctly. The scan tool will display Incomplete if there is an open, short to ground, or a short to voltage on the circuit.
Engine Control Ignition | -- | Volts | The scan tool displays 0-13 Volts. The scan tool displays approximately 12 Volts when the ignition is ON.
Engine Coolant Temperature | -- | Degrees | This parameter displays the temperature of the engine coolant based on a voltage input from the engine coolant temperature (ECT) sensor to the engine control module. The scan tool will display a low value when the coolant temperature is low, and a high value when the coolant temperature is high.
Engine Load | -- | 0 - 100 % | This parameter displays the calculated engine load in percent based on inputs to the engine control module from various engine sensors.
Engine Oil Level Low Indicator | -- | On/Off | The scan tool will display ON when the oil pressure is low which activates the Indicator light.
Engine Oil Level Switch | -- | Ok/Fault/Indeterminate | This parameter displays if the level of the engine oil is within range as determined by the engine control module from information received from the engine oil level switch.
Engine Oil Life Remaining | -- | 0 - 100 % | This parameter displays the percent of engine oil life remaining. The controller calculates the engine oil life by monitoring engine load, coolant temperature, and engine speed.
Engine Oil Pressure | -- | kPa | This parameter displays the engine oil pressure.
Engine Oil Pressure Sensor | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
Engine Oil Pressure Sensor | -- | Ok/Fault/Indeterminate | This parameter displays OK if the engine oil pressure is within the correct range. If the engine control module detects that the engine oil pressure is not within the correct range, the scan tool displays Low.
Engine Oil Temperature | -- | Degree | This parameter displays the temperature of the engine oil.
Engine Run Time | -- | hh:mm:ss | This parameter displays the time elapsed since the engine was started. The scan tool will display the time in hours, minutes and seconds. The engine run time will reset to zero as soon as the engine stops running.
Engine Speed | -- | RPM | This parameter displays the speed of the crankshaft as calculated by the engine control module based on inputs from the Crankshaft Position (CKP) Sensor. The scan tool will display the engine speed in revolutions per minute (RPM).
Engine Torque | -- | Nm |
Estimated Gear Ratio | -- | 0.00 : 1 Ratio |
EVAP Purge Solenoid EVAP Emission | -- | 0 - 100 % | This parameter displays the on-time or duty cycle of the EVAP canister purge solenoid commanded by the engine control module. Zero percent indicates no purge. One hundred percent indicates full purge.
Fan Relay 1 | -- | On/Off | This parameter displays the state of the fan relay control circuit. The parameter displays Fault if the fan relay control circuit is open, shorted to ground, or shorted to voltage. The parameter displays Indeterminate until the circuit has been commanded ON.
Fan Relay 2 and 3 | -- | On/Off | This parameter displays the engine control module commanded state of the fan relay control circuit.
Fuel Level | -- | 0 - 100 % | This parameter displays the amount of fuel remaining in tall of the fuel tanks of the vehicle as a percentage. The engine control module calculates this level using the signals from the sensors used to monitor the fuel level in the fuel tanks. The scan tool will display a low reading when the total fuel level in the vehicle is low or near empty. The scan tool will display a high reading when the fuel level in the tank is high or near full.
Fuel Level | -- | Liters | This parameter displays the amount of fuel remaining in all fuel tanks of the vehicle as measured in liters or gallons. The engine control module calculates the amount of fuel remaining in the tank by using information from the fuel level sensors.
Fuel Level Sender 1 | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
Fuel Level Sender 2 | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
Fuel Pump Relay | -- | On/Off | This parameter displays the commanded state of the fuel pump relay control circuit. The fuel pump relay should be ON when the scan tool indicates the fuel pump relay command is ON. The fuel pump relay should be OFF when the scan tool indicates the fuel pump relay command is OFF.
Fuel System Status | -- | Open/Closed | The scan tool displays Open Loop or Closed Loop. The scan tool displays Closed Loop if the engine control module is controlling the fuel delivery according to the heated oxygen sensor (HO2S) voltages. The scan tool displays open loop if the engine control module is not adjusting for HO2S inputs. In open loop the engine control module bases fuel deliver on throttle position, engine coolant temperature, and mass airflow sensor inputs.
Fuel Trim Learn | -- | Enable/Disable | The scan tool displays Enabled or Disabled. When conditions are appropriate for enabling long term fuel trim corrections, the scan tool displays Enabled. If the scan tool displays Disabled, then long term fuel trim will not respond to changes in short term fuel trim.
Gear 1 TAP Cell | -- | kPa |
Gear 2 TAP Cell | -- | kPa |
Gear 3 TAP Cell | -- | kPa |
Ignition Accessory Signal | -- | On/Off | This parameter displays the state of the ignition input to the engine control module from the ignition switch. The scan tool will display ON when the ignition switch is in the ignition accessory position. The scan tool will display OFF when the ignition switch is in any other position.
Ignition Time Off | -- | hh:mm:ss |
Ignition On Signal | -- | On/Off |
Ignition Voltage | -- | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
IMRC Solenoid (Intake Man) | -- | On/Off | This parameter displays the engine control modules commanded state of the IMRC solenoid.
IMRC Solenoid Circuit Staus | -- | Complete/Incomplete | This parameter displays the state of the intake manifold runner control (IMRC) circuit. The parameter displays Fault if the IMRC circuit is open, shorted to ground, or shorted to voltage. The parameter displays Indeterminate until the circuit has been commanded ON. This parameter may not change if the scan tool is used to command the IMRC solenoid ON.
IMRC Solenoid Feedback | -- | 0 - 100 % |
Injection Time Cylinder 1 | -- | milliseconds | This parameter displays the amount of fuel injector ON time or pulse width as commanded by the engine control module.
Injection Time Cylinder 2 | -- | milliseconds
Injection Time Cylinder 3 | -- | milliseconds
Injection Time Cylinder 4 | -- | milliseconds
Injection Time Cylinder 5 | -- | milliseconds
Injection Time Cylinder 6 | -- | milliseconds
Injector 1 Disabled Due | -- | Yes/No |
Injector 2 Disabled Due | -- | Yes/No |
Injector 3 Disabled Due | -- | Yes/No |
Injector 4 Disabled Due | -- | Yes/No |
Injector 5 Disabled Due | -- | Yes/No |
Injector 6 Disabled Due | -- | Yes/No |
Intake Air Temp | -- | Degrees | This parameter displays the temperature of the intake air calculated by the engine control module based on the input from the intake air temperature (IAT). The scan tool will display a low value for a low intake air temperature, and a high value for a high intake air temperature.
Knock Retard | -- | Degrees | The scan tool displays in °. This parameter indicates the amount of timing retard commanded by the engine control module. The scan tool will display a lower value if no knock is detected, and a higher value as more knock is detected and the control module retards the ignition timing.
Knock Retard Cylinder 1 | -- | Degress CA |
Knock Retard Cylinder 2 | -- | Degress CA |
Knock Retard Cylinder 3 | -- | Degress CA |
Knock Retard Cylinder 4 | -- | Degress CA |
Knock Retard Cylinder 5 | -- | Degress CA |
Knock Retard Cylinder 6 | -- | Degress CA |
Knock Sensor Circuit 1 Test Status | -- | Complete/Incomplete |
Knock Sensor Circuit 2 Test Status | -- | Complete/Incomplete |
Knock Sensor Circuit Test Status | -- | Complete/Incomplete |
Latest Shift | -- | 0.00 Seconds |
Loop Status Bank 1 or 2 Sensor 1 | -- | Open/Closed | This parameter displays the state of the fuel control system as commanded by the engine control module. Closed Loop operation indicates that the engine control module is controlling the fuel delivery based off the oxygen sensors input signal. In Open Loop operation the engine control module ignores the oxygen sensor input signal and bases the amount of fuel to be delivered on other sensor inputs.
Loop Status Bank 1 or 2 Sensor 2 | -- | Open/Closed | This parameter displays the state of the rear heated oxygen sensors as commanded by the engine control module. The rear sensors will not go into Closed Loop until the engine control module (ECM) determines that the HO2S is ready for operation.
Malfunction Indicator | -- | On/Off | This parameter displays the commanded state of the malfunction indicator lamp (MIL) control circuit by the engine control module.
Mass Air Flow | -- | g/s | The scan tool displays g/s. This parameter indicates the airflow into the engine as calculated by the engine control module based on mass airflow (MAF) sensor inputs. The scan tool will display a high value at higher engine speeds, and a low value at idle.
Mass Air Flow Sensor | -- | Hz | The scan tool displays in Hz. This parameter indicates the frequency signal sent from the MAF sensor to the engine control module. the scan tool will display a high value indicates a higher engine speed. The scan tool will display a low value at idle.
Misfire Current Cylinder 1 | -- | (#) | The scan tool will display in counts. This parameter indicates the number of cylinder firing events detected as possible misfires on each cylinder during the last 200 crankshaft revolutions as calculated by the engine control module. The scan tool will display a low number for a low number of cylinder misfire events. The scan tool will display a high number for a high number of cylinder misfire events.
Misfire Current Cylinder 2 | -- | (#)
Misfire Current Cylinder 3 | -- | (#)
Misfire Current Cylinder 4 | -- | (#)
Misfire Current Cylinder 5 | -- | (#)
Misfire Current Cylinder 6 | -- | (#)
Misfire History Cylinder 1 | -- | (#) | The scan tool displays in counts. This parameter displays the total level of cylinder misfires that have been calculated for each cylinder by the engine control module. This parameter will not update or show activity until a misfire DTC has become active. The misfire history counters will update every 200 cylinder firing events.
Misfire History Cylinder 2 | -- | (#)
Misfire History Cylinder 3 | -- | (#)
Misfire History Cylinder 4 | -- | (#)
Misfire History Cylinder 5 | -- | (#)
Misfire History Cylinder 6 | -- | (#)
Oil Level | -- | Normal/ | his parameter displays if the level of the engine oil is within range as determined by the engine control module from information received from the engine oil level switch.
PCS Actual Current | -- | 0 mA |
PCS Desired Current | -- | 0 mA |
PCS Duty Cycle | -- | 0 - 100 % |
Power Enrichment | -- | Active/Inactive | Scan tool displays ACTIVE or INACTIVE. ACTIVE displayed indicates that the engine control module has detected conditions appropriate to operate in Power Enrichment mode. The engine control module commands Power Enrichment mode when a large increase in throttle position and load is detected. While in Power Enrichment, the engine control module will increase the amount of fuel delivered by entering Open Loop and increasing the injector pulse width.
Powertrain Immobiliser | -- |  |
Reduced Engine Power | -- | Active/Inactive | The scan tool displays Active or Inactive. The scan tool displays Active when the engine control module receives a signal from the throttle actuator control (TAC) module that a TAC system fault is occurring. The scan tool displays inactive when the engine is operating normally.
Requested Torque | -- | 0 - 100 % | This parameter displays the calculated amount torque requested of the controller.
Reverse Gear TAP Cell | -- | kPa |
RVC Override Command | -- |  |
Shift Pattern | -- | Normal/ |
Shift Solenoid A | -- | On/Off |
Shift Solenoid A Circuit | -- |  |
Shift Solenoid B | -- | On/Off |
Spark Advance | -- | Degrees CA | This parameter displays the amount of spark advance the engine control module is commanding on the ignition control circuits. The engine control module determines the desired advance.
Speed Ratio | -- | 0.00 : 1 |
Starter Relay | -- | On/Off | This parameter displays the control modules commanded state of the starter motor relay control circuit.
Start-Up ECT | -- | Degrees | This parameter indicates the engine coolant temperature at start-up, as calculated by the engine control module based on the input from the engine coolant temperature sensor. The scan tool will display a higher value at higher engine start-up temperatures, and a lower value at lower start-up temperatures.
Start-Up IAT | -- | Degrees | Indicates the intake air temperature (IAT) at the time that the vehicle was started. Used to determine if the last start-up was a cold start. The scan tool range is -39 to +140°C (-38 to +284°F). This parameter indicates the ambient air temperature at start-up.
TAC Motor PWM Command | -- | 0 - 100 % | This parameter indicates the commanded state of the TCC PWM Solenoid by the engine control module. The scan tool displays ON or OFF. The scan tool displays ON when the commanded state of the solenoid is ON. The scan tool displays OFF when the solenoid is OFF.
TCC 1 TAP Cell | -- | kPa |
TCC 2 TAP Cell | -- | kPa |
TCC 3 TAP Cell | -- | kPa |
TCC Duty Cycle Circuit |  |  |
TCC PWM Solenoid |  | 0 - 100 % | This parameter indicates the commanded state of the TCC PWM Solenoid by the engine control module. The scan tool displays ON or OFF. The scan tool displays ON when the commanded state of the solenoid is ON. The scan tool displays OFF when the solenoid is OFF.
TCC Slip Speed |  | RPM |
TCC Solenoid |  | On/Off | This parameter displays the commanded status of the TCC.
TFP Gear |  | Park/Neutral |
TFP Switch A (Transmission Fluid) |  | Open/Closed - Volts | Open 12V
TFP Switch B (Transmission Fluid) |  | Open/Closed - Volts | Closed 12V
TFP Switch C (Transmission Fluid) |  | Open/Closed - Volts | Open 12V
Throttle Position |  | 0 - 100 % | This parameter displays the percent of throttle opening as calculated by the engine control module using information from the two TP sensors.
Time Since Engine Off |  | hh:mm:ss |
Torque Converter Efficiency |  | 0.00 : 1 |
Total Knock Retard |  | Degrees CA | This parameter indicates how much ignition spark timing is being retarded due to all control systems monitored by the engine control module. The scan tool will display a high value during extreme conditions such as high temperatures and antilock braking. The scan tool will display a lower value during lighter driving conditions.
Total Misfire |  | (#) | The scan tool range is 0-255 counts. This parameter indicates the total level of misfire that has been detected on each cylinder. The misfire history counters will not update or show any activity until a misfire or DTC P0300 has become active. The misfire history counter will update every 200 cylinder firing events.
TP Sensor 1 (Throttle Position) |  | 0 - 100 % | This parameter displays the angle of the throttle position (TP) sensor 1 in percent. This information is calculated by the engine control module using the signal from the throttle position sensor 1. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.
TP Sensor 1 (Throttle Position) |  | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
TP Sensor 1 Learned Lower |  | Volts | This parameter displays the learned minimum value of TP sensor 1 as recorded by the engine control module during the last learn procedure.
TP Sensor 1-2 Correlation |  | Ok/Fault/Inderminate | This parameter displays the results of a engine control module test that compares signals from the throttle position (TP) sensors 1 and 2 . The scan tool will display Agree when the signal from TP sensor 1 corresponds with the signal from TP sensor 2. The scan tool will display Disagree when the signal from TP sensor 1 conflicts with the signal from TP sensor 2.
TP Sensor 2 (Throttle Position) |  | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
TP Sensor 2 (Throttle Position) |  | 0 - 100 % | This parameter displays the angle of the throttle position (TP) sensor 2 in percent. This information is calculated by the engine control module using the signal from the throttle position sensor 2. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.
TP Sensor 2 Learned Lower |  | Volts | The scan tool displays 0-?? Volts. The scan tool displays approximately ?? Volts when the ignition is ON.
TR Switch A |  | Open/Closed - Volts | Open 12V
TR Switch B |  | Open/Closed - Volts | Open 12V
TR Switch C |  | Open/Closed - Volts | Closed 12V
TR Switch P |  | Open/Closed - Volts | Closed 12V
Traction Control |  | Active/Inactive | This parameter displays Active if the EBTCM is commanding traction control.
Transmission Fluid Temperature |  | Degrees |
Transmission Gear |  | PRNDL | This parameter indicates the current state of the gear select switch on the transmission/transaxle as calculated by the engine control module based on the TR switch. The scan tool status will switch from High to Low as different combinations are met. On the scan tool in Park, the PRNDL would read P and A will be Low, and B and C will be High.
Transmission Hot Mode |  | On/Off | Off
Transmission Range (TR) |  |  |
Vehicle Speed Circuit Status |  |  | This parameter displays the status of the Vehicle Speed Circuit. The scan tool will display OK, Incomplete, Short B+, Short Gnd/Open. The scan tool will display OK/Incomplete if the circuit is operating correctly.
Vehicle Speed Sensor |  | Km/h | This parameter indicates the vehicle speed calculated by the engine control module based on an input from the vehicle speed sensor (VSS). the scan tool will display a high value at higher vehicle speeds, and a low value at lower vehicle speeds.
Volumetric Efficiency |  | 5 - 25 % | This parameter displays the calculated volumetric efficiency of the engine as calculated by the engine control module.