K20 Engine Control Module: Scan Tool Information (LKH or LWN)
The Engine Control Module 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
The 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 normally running engine.
NOTE:
A scan tool that displays faulty data should not be used. The scan tool concern 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.
Engine Control Module Scan Tool Data
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Base Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories Off | |||
| A/C Compressor Clutch Inhibit Reason History 1 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Compressor Clutch Inhibit Reason History 2 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Compressor Clutch Relay Command | A/C On | On | This parameter displays the commanded state of the air conditioning (A/C) compressor output. |
| A/C Compressor Clutch Relay Control Circuit High Voltage Test Status | - | OK | This parameter displays the state of the air conditioning (A/C) clutch relay control circuit. It can display OK, Malfunction or Not Run. The parameter displays Malfunction if the A/C clutch relay control circuit is shorted to voltage. |
| A/C Compressor Clutch Relay Control Circuit Low Voltage Test Status | - | OK | This parameter displays the state of the air conditioning (A/C) clutch relay control circuit. It can display OK, Malfunction or Not Run. The parameter displays Malfunction if the A/C clutch relay control circuit is shorted to ground. |
| A/C Compressor Clutch Relay Control Circuit Open Test Status | - | OK | This parameter displays the state of the air conditioning (A/C) clutch relay control circuit. It can display OK, Malfunction or Not Run. The parameter displays Malfunction if the A/C clutch relay control circuit is opened. |
| A/C Compressor Operation | A/C ON | Allowed | This parameter indicates if the A/C compressor operation is allowed or not allowed. |
| A/C Disable - A/C Pressure Out of Range | A/C ON | No | This parameter indicates if the A/C compressor was disengaged due to pressure out of range. |
| A/C Disengage History 1 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 2 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 3 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 4 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 5 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 6 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 7 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C Disengage History 8 | - | None | The parameter displays the reason the air conditioning (A/C) system cannot engage. |
| A/C High Side Pressure Sensor | A/C ON or OFF | kPa / PSI | The scan tool displays 0-5 volts. The voltage applied to the ECM input for the A/C refrigerant pressure sensor. |
| A/C OFF for WOT | A/C ON/WOT | NO | The scan tool displays YES/NO. The state of the A/C request related to wide open throttle. |
| A/C ON/Not WOT | Yes | ||
| A/C Request Signal | A/C ON | Yes | The scan tool displays YES/NO. The HVAC module receives an input request when the HVAC module is turned On. |
| A/C OFF | No | ||
| Accelerator Pedal Position | Accelerator pedal not actuated | 0% | This parameter displays the angle of the accelerator pedal as calculated by the control module using the signals from the accelerator pedal position sensors. The accelerator pedal position (APP) indicated angle is a range of values indicating a low percentage when the accelerator pedal is not depressed to a high percentage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 100% | ||
| Accelerator Pedal Position When Engine Overspeed Detected | - | % | This parameter displays the angle of the accelerator pedal when the engine overspeeds. |
| Ambient Air Temperature | - | Varies | Outside temperature at any given altitude expressed in degrees |
| APP Sensor 1 | Accelerator pedal not actuated | 0.7-1.2 Volts | This parameter displays the voltage signal sent to the control module from APP sensor 1 of the APP sensor assembly. APP sensor 1 is a range of values indicating a low voltage when the accelerator pedal is not depressed to a high voltage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 4.2-4.5 Volts | ||
| APP Sensor 1 Learned Released Position | - | Volt | This Parameter indicates the accelerator pedal sensor 1 signal at its minimum learned position (pedal released) as a percentage of its reference voltage. (The minimum learned position is automatically updated periodically as determined by the engine control module (ECM). |
| APP Sensor 2 | Accelerator pedal at rest position | 0.3-0.5 Volts | This parameter displays the voltage signal sent to the control module from APP sensor 2 of the APP sensor assembly. APP sensor 2 is a range of values indicating a low voltage when the accelerator pedal is not depressed to a high voltage when the accelerator pedal is fully depressed. |
| Accelerator pedal at WOT | 2.0-2.5 Volts | ||
| APP Sensor 2 Learned Released Position | - | Volt | This Parameter indicates the accelerator pedal sensor 1 signal at its minimum learned position (pedal released) as a percentage of its reference voltage. (The minimum learned position is automatically updated periodically as determined by the engine control module (ECM). |
| BARO | - | kPa | This parameter displays the barometric pressure in kPa. |
| BARO Sensor | - | Volt | This parameter displays the barometric pressure in volts. |
| Battery Voltage High Resolution | - | Volts | This parameter displays the Battery Voltage High Resolution. |
| Boost Pressure Sensor | - | kPa | This parameter displays the turbocharger boost pressure inside the engine as calculated by the control module based on the signal from the Intake Manifold Pressure and Air Temperature sensor. |
| Brake Pedal Position Circuit Signal | Released | Applied/Released | This parameter displays the status of the brake pedal position circuit. |
| Camshaft Position Sensor | - | RPM | This parameter displays the RPM of the engine. |
| Clutch Pedal Starter Inhibit Switch | Released | Applied/Released | This parameter displays the status of the clutch pedal starter inhibit switch |
| Clutch Pedal Switch | Released | Applied/Released | This parameter displays the status of the clutch pedal switch |
| Control Module Voltage Signal | - | Volts | This parameter displays the voltage of the power input to the engine control module. Since battery voltage is not directly measured by engine control module, switched battery voltage from the Run/Crank input to the engine control module is displayed. |
| Cruise Control | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 1 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 2 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 3 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 4 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 5 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 6 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 7 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Cruise Control Disengage History 8 | - | enabled | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display enabled when the cruise control system is in control of vehicle speed. The scan tool will display disabled when the cruise control system is not operating. |
| Current Gear When Engine Overspeed Detected | - | - | This parameter displays the current gear when engine overspeed was detected. |
| Cylinder 1 Glow Plug Command | - | % | This parameter displays the if the glow plug is commanded, the parameter are OK, malfunction or not run. |
| Cylinder 1 Glow Plug Control Circuit High Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a high voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 1 Glow Plug Control Circuit Low Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a low voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 1 Glow Plug Control Circuit Open Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a open circuit in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 1 Glow Plug Resistance | - | m Ohm | This parameter displays the resistance of the glow plug. |
| Cylinder 1 Injection Timing | - | degree | This parameter displays the injection timing in degree. |
| Cylinder 1 Injector Command | - | ms | This parameter displays the injection time in ms. |
| Cylinder 1, 2, 3, 4 Injector Flow Identifier | - | Varies | This parameter is used to correct the injected quantity of each injector. When the injectors are replaced or exchanged, the Injector Quantity adjustment values of the replaced or exchanged injectors have to be entered into the ECM to ensure acceptable engine performance regarding emissions. |
| Cylinder 2 Glow Plug Command | - | % | This parameter displays the if the glow plug is commanded, the parameter are OK, malfunction or not run. |
| Cylinder 2 Glow Plug Control Circuit High Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a high voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 2 Glow Plug Control Circuit Low Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a low voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 2 Glow Plug Control Circuit Open Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a open circuit in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 2 Glow Plug Resistance | - | m Ohm | This parameter displays the resistance of the glow plug. |
| Cylinder 2 Injection Timing | - | degree | This parameter displays the injection timing in degree. |
| Cylinder 2 Injector Command | - | ms | This parameter displays the injection time in ms. |
| Cylinder 3 Glow Plug Command | - | % | This parameter displays the if the glow plug is commanded, the parameter are OK, malfunction or not run. |
| Cylinder 3 Glow Plug Control Circuit High Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a high voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 3 Glow Plug Control Circuit Low Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a low voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 3 Glow Plug Control Circuit Open Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a open circuit in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 3 Glow Plug Resistance | - | m Ohm | This parameter displays the resistance of the glow plug. |
| Cylinder 3 Injection Timing | - | degree | This parameter displays the injection timing in degree. |
| Cylinder 3 Injector Command | - | ms | This parameter displays the injection time in ms. |
| Cylinder 4 Glow Plug Command | - | % | This parameter displays the if the glow plug is commanded, the parameter are OK, malfunction or not run. |
| Cylinder 4 Glow Plug Control Circuit High Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a high voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 4 Glow Plug Control Circuit Low Voltage Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a low voltage in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 4 Glow Plug Control Circuit Open Test Status | - | OK | This parameter displays the if the glow plug is commanded on and there is a open circuit in the control circuit, the parameters are OK, malfunction or not run. |
| Cylinder 4 Glow Plug Resistance | - | m Ohm | This parameter displays the resistance of the glow plug. |
| Cylinder 4 Injection Timing | - | degree | This parameter displays the injection timing in degree. |
| Cylinder 4 Injector Command | - | ms | This parameter displays the injection time in ms. |
| Desired Boost Pressure | - | Varies | This parameter displays the TC Boost pressure as commanded by the control module. This parameter shows the turbocharger boost pressure in kPa. |
| Desired Fuel Rail Pressure | - | Varies | This parameter displays the desired fuel rail pressure as calculated by the control module. This value is calculated based on engine speed, engine load, and sensor inputs. The scan tool will display a higher value at higher engine speeds and loads, and a lower value at idle. |
| Desired Idle Speed | - | 680 RPM | This parameter displays the engine idle speed in RPM as commanded by the control module. The control module compensates for various engine loads in order to maintain the desired engine speed at idle. This parameter is not valid unless the engine is running. |
| Desired Intake Air Flow Valve Position | - | % | This parameter will display the position of the intake air flow valve as a percentage. |
| Desired Turbocharger Vane Position | - | Varies | This parameter displays the position of the turbocharger vane position sensor as the turbocharger vane position is commanded by the control module. The scan tool will display 0 percent when the control module is commanding the vanes open. The scan tool will display a higher percentage when the vanes are commanded closed. |
| ECM Challenge Status | - | Valid | This parameter displays the condition of the ECM code challenge to the BCM. |
| ECT Sensor | - | °C (°F) | This parameter displays the temperature of the engine coolant as calculated by the control module based on the input from the Engine Coolant Sensor (ECT) sensor. The scan tool will display a low value when the coolant temperature is low, and a high value when the coolant temperature is high. |
| EGR Learned Minimum Position | - | Volts | This parameter displays the learned minimum position of the EGR valve as calculated by the control module. The scan tool will display a low value if the current closed EGR position is the same as the last ignition cycle. The scan tool will display a higher value if the EGR valve has closed at a new position. |
| EGR Position Sensor | - | 1.75 Volts | This parameter displays the voltage signal received from the EGR valve position sensor by the control module. The scan tool will display a lower value when the EGR valve is closed, and a higher value when the EGR valve is open. |
| EGR Valve Command | - | % | This parameter displays EGR valve position as calculated by the control module based on an input from the EGR valve position sensor. The scan tool will display a lower value when the EGR valve is closed, and a higher value when the EGR valve is open. |
| Engine Controls Ignition Relay Command | - | ON | This parameter displays the state of the control circuit for engine control module power relay as commanded by the engine control module. |
| Engine Controls Ignition Relay Control Circuit High Voltage Test Status | - | OK | This parameter displays the state of the Engine Controls Ignition Relay control circuit. The parameter displays Malfunction if the Engine Controls Ignition Relay control circuit is shorted to voltage. |
| Engine Controls Ignition Relay Control Circuit Low Voltage Test Status | - | OK | This parameter displays the state of the Engine Controls Ignition Relay control circuit. The parameter displays Malfunction if the Engine Controls Ignition Relay control circuit is shorted to ground. |
| Engine Controls Ignition Relay Control Circuit Open Test Status | - | OK | This parameter displays the state of the Engine Controls Ignition Relay control circuit. The parameter displays Malfunction if the Engine Controls Ignition Relay control circuit is open. |
| Engine Controls Ignition Relay Feedback Signal | - | 12.0-14.9 V | This parameter displays the voltage available at the Engine Controls Ignition Relay pin of the engine control module. |
| Engine Load | - | Varies | This parameter displays the engine load in percent based on inputs to the control module from various engine sensors. The scan tool will display a low percentage when the engine is at idle with little or no load. The scan tool will display a high percentage when the engine is running at a high RPM under a heavy load. |
| Engine Oil Life Remaining | - | % | This parameter displays the engine oil life remaining in percent based on inputs to the control module from various engine sensors. |
| Engine Oil Pressure Switch | - | OK | An Oil pressure switch is used to indicate a loss in oil pressure |
| Engine Overspeed | - | Present/ Not Present | This parameter displays the engine overspeeds. |
| Engine Overspeed Counter | - | Counts | This parameter displays the how often the engine overspeeds. |
| Engine Run Time | - | hh:mm:ss | This parameter displays the engine runtime |
| Engine Speed | - | RPM | This parameter displays the engine speed. |
| Engine Speed When Engine Overspeed Detected | - | RPM | This parameter displays the engine speed when engine overspeed was detected. |
| Extended Travel Brake Pedal Position Signal | - | Released | This parameter displays the status of the Extended Travel Brake Pedal Position sensor. |
| Fuel Heater Relay Command | - | Off | This parameter displays the status of the fuel relay heater command. |
| Fuel Heater Relay Control Circuit High Voltage Test Status | - | OK | This parameter displays the status of the output driver for the fuel heater relay control circuit. The parameter displays Malfunction if the fuel heater relay control circuit is shorted to voltage. |
| Fuel Heater Relay Control Circuit Low Voltage Test Status | - | OK | This parameter displays the status of the output driver for the fuel heater relay control circuit. The parameter displays Malfunction if the fuel heater relay control circuit is shorted to ground. |
| Fuel Heater Relay Control Circuit Open Test Status | - | OK | This parameter displays the status of the output driver for the fuel heater relay control circuit. The parameter displays Malfunction if the fuel heater relay control circuit is open. |
| Fuel Level Sensor | - | Voltage | This parameter displays the voltage from the sensor used to monitor the fuel level inside the fuel tank. The scan tool will display a low voltage reading when that the fuel level in the tank is low or near empty. The scan tool will display a high voltage reading when the fuel level in the tank is high or near full. |
| Fuel Pump Relay Command | - | On | 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 Pump Relay Control Circuit High Voltage Test Status | - | OK | This parameter displays the state of the Fuel Pump Relay Control Circuit. The parameter displays Malfunction if the Fuel Pump Relay Control Circuit is shorted to voltage. |
| Fuel Pump Relay Control Circuit Low Voltage Test Status | - | OK | This parameter displays the state of the Fuel Pump Relay Control Circuit. The parameter displays Malfunction if the Fuel Pump Relay Control Circuit is shorted to ground. |
| Fuel Pump Relay Control Circuit Open Test Status | - | OK | This parameter displays the state of the Fuel Pump Relay Control Circuit. The parameter displays Malfunction if the Fuel Pump Relay Control Circuit is open. |
| Fuel Rail Pressure Regulator Command | - | % | This parameter displays the status of the fuel rail pressure regulator command. |
| Fuel Rail Pressure Relief Valve Test Abort Reason | - | Click Here | This parameter displays the state of the Fuel Rail Pressure Relief Valve Test Abort Reason. |
| Fuel Rail Pressure Relief Valve Test Status | - | Click Here | This parameter displays the state of the Fuel Rail Pressure Relief Valve Test Status. |
| Fuel Rail Pressure Sensor | - | 35-40 MPa (5076-5801 psi) | This parameter displays the fuel rail pressure as calculated by the control module. This value is calculated based on engine speed, engine load, and sensor inputs. The scan tool will display a higher value at higher engine speeds and loads, and a lower value at idle. |
| Fuel Rail Pressure Sensor | - | Volts | This parameter displays the voltage signal sent to the control module from the sensor used to measure the fuel rail pressure. The scan tool will display a low voltage at idle and high voltage when pressure demands are high. |
| Fuel Temperature Sensor | - | °C (°F) | This parameter displays the temperature of the fuel calculated by the control module based on the input from the fuel temperature (FTS) sensor. |
| GEN F-Terminal Signal | - | 0-100% | This parameter indicates the generator field duty cycle as commanded by the voltage regulator or control module. The scan tool will display a higher value for a higher commanded generator output, and a lower value for a lower commanded generator output. |
| GEN L-Terminal Command | - | 0-100% | This parameter displays the control modules commanded state of the voltage regulator on the generator. |
| Glow Plug Self-Test | - | Incomplete | The self test activates the glow plugs one by one in sequence. The ECU controls the duty cycle in order to run the glow plugs at the correct operating temperature and to distribute the glow plug load. |
| IAT Sensor 1 | - | °C (°F) | This parameter displays the temperature of the air entering the engine as calculated by the control module based on the input from the intake air temperature (IAT) sensor. The scan tool will display a low value when the air temperature is low, and a high value when the air temperature is high. Note: IAT sensor 1 is an integral part of the Mass Air Flow / Intake Air Temperature Sensor (electrical component B75B). |
| IAT Sensor 2 | - | °C (°F) | This parameter displays the temperature of the air entering the engine as calculated by the control module based on the input from the intake air temperature (IAT) sensor 2. The scan tool will display a low value when the air temperature is low, and a high value when the air temperature is high. Note: IAT sensor 2 is an integral part of the Mass Air Flow / Intake Air Temperature Sensor (electrical component B65). |
| Ignition 1 Signal | - | On/Off | This parameter displays ON when the control module detects B+ voltage at the ignition 1 input terminal. |
| Immobilizer Auto Learn Counter | - | Counts | This parameter displays the number of auto learn cycles that have been successfully completed within the immobilizer system. |
| Immobilizer Automatic Learn Timer | - | hh.mm.ss | This parameter indicates that either the auto learn timer (used in the auto learn procedure to enable VTD password learning) or the seed and key timer (used in the seed and key procedure to enable VTD password learning) is active. |
| Immobilizer Password Learn | - | Disabled | This indicates learning of the Immobilizer password received from the platform electronics is enabled. Immobilizer password learning is first enabled in assembly plant (prior to the manufacturer's enable counter being set to zero) may be re-enabled using 1 of 2 procedures. |
| Immobilizer Password Learn Scan Tool Delay | - | Active/Inactive | Scan Tool Learn Delay Active indicates that the security code has been accepted but the scan tool learn delay is active and will not allow learning enabled, programming security code, or resetting security code. |
| Immobilizer Security Code Accepted | - | Yes | This parameter displays if the Immobilizer Security code was accepted by the ECM. |
| Immobilizer Security Code Function | - | Present/Not Present | This parameter displays if the Immobilizer Security code function was accepted by the ECM |
| Immobilizer Security Code Lockout | - | Inactive | This parameter displays if the Immobilizer Security code is locked out of the ECM. |
| Immobilizer Security Code Lockout Active Timer | - | ms | This parameter displays the active timer Immobilizer Security lockout in ms. |
| Immobilizer Security Code Programmed | - | Yes | This parameter displays if the Immobilizer Security code is currently being programmed in the ECM. |
| Immobilizer Security Code Programming Counter | - | Counts | This parameter displays the how often the Immobilizer security code been reprogrammed. |
| Immobilizer Security Code Reset Counter. | - | Counts | This parameter displays the how often the Immobilizer security code has been reset. |
| Immobilizer Security Information Programmed | - | Yes | This parameter displays if the Immobilizer Security code has been programmed in the ECM. |
| Immobilizer System Status | - | Varies | This parameter displays the Immobilizer System status in the BCM. |
| Intake Air Flow Valve Control Circuit High Voltage Test Status | - | OK | This parameter displays the status of the Intake Air Flow Valve Control Circuit 1 output driver. The scan tool will display OK if the circuit is operating correctly or Not Run if a diagnosis has not been made. The scan tool will display Malfunction if there is a short to voltage in the circuit. |
| Intake Air Flow Valve Control Circuit Low Voltage Test Status | - | OK | This parameter displays the status of the Intake Air Flow Valve Control Circuit 1 output driver. The scan tool will display OK if the circuit is operating correctly or Not Run if a diagnosis has not been made. The scan tool will display Malfunction if there is a short to ground in the circuit. |
| Intake Air Flow Valve Control Circuit Open Test Status | - | OK | This parameter displays the status of the Intake Air Flow Valve Control Circuit. The scan tool will display OK if the circuit is operating correctly or Not Run if a diagnosis has not been made. The scan tool will display Malfunction if there is an open in the circuit. |
| Intake Air Flow Valve Control Circuit Shorted Test Status | - | OK | This parameter displays the status of the Intake Air Flow Valve Control Circuit. The scan tool will display OK if the circuit is operating correctly or Not Run if a diagnosis has not been made. The scan tool will display Malfunction if there is a short in the circuit. |
| Intake Air Flow Valve Learned Closed Position. | - | Volts | This parameter displays the learned closed position of the Intake air flow valve as calculated by the control module. |
| Intake Air Flow Valve Motor Command | - | % | This parameter displays the commanded duty cycle for the Intake Airflow Valve output. |
| Intake Air Flow Valve Position | - | % | This parameter displays the position determined from Intake Air Flow Valve position sensor (corrected based upon its learned minimum position). |
| Intake Air Flow Valve Position Sensor | - | Volts | This parameter displays the Intake Air Flow Valve position sensor voltage input. |
| Intake Manifold Runner Control Valve Command | - | % | This parameter displays the current command in percentage of the intake manifold runner control valve. |
| Intake Manifold Runner Control Valve Diagnostic Test Status | - | Varies | This parameter displays the current phase of the intake manifold runner control valve diagnostic test. |
| MAF Sensor | Engine Idling | 9-20 g/s | This parameter indicates the quantity calculated by the control module based on a signal from the MAF sensor. The scan tool will display a high value at high engine speeds, and a low value at low engine speeds. |
| Engine speed at 2, 500 RPM | 130-150 g/s | ||
| MAF Sensor | - | 2300-3100 Hz | This parameter indicates the frequency signal received from the MAF sensor by the control module. The scan tool will display a high value at high engine speeds, and a low value at low engine speeds. |
| MAF When Engine Overspeed Detected | - | G/S | This parameter indicates the g/s received from the MAF sensor by the control module. The scan tool will display a high value at overspeed detected, |
| Maximum Engine Speed When Engine Overspeed Detected | - | RPM | This parameter indicates the RPM when malfunction occurred. The scan tool will display RPM valve. |
| Odometer When Engine Overspeed Detected | - | KM/miles | This parameter displays the km/miles when the engine overspeeds. |
| Power Mode | - | Off | This parameter displays the state of the System Power Mode. This signal is based upon the state of the system power mode received over serial communication from the vehicle electronics. |
| Reduced Engine Power History | - | Varies | This parameter displays the last reason that the engine control module has illuminated the Reduced Engine Power (REP) indication. |
| Remaining Fuel in Tank | - | Liters | This parameter displays the actual total fuel volume contained in the fuel tank. |
| Reverse Position Switch | - | On/Off | This parameter displays position of reverse gear switch on/off. |
| Starter Relay Command | - | Off | The scan tool displays ON/OFF. The scan tool displays Off until the ignition is placed into the CRANK position, then it reads On. |
| Starter Relay Control Circuit High Voltage Test Status | - | OK | This parameter displays the state of the starter relay control circuit. The parameter displays Malfunction if the starter relay control circuit is shorted to voltage. This parameter may not change if the scan tool is used to command the relay control circuit ON. |
| Starter Relay Control Circuit Low Voltage Test Status | - | OK | This parameter displays the state of the starter relay control circuit. The parameter displays Malfunction if the starter relay control circuit is shorted to ground. This parameter may not change if the scan tool is used to command the relay control circuit ON. |
| Starter Relay Control Circuit Open Test Status | - | OK | This parameter displays the state of the starter relay control circuit. The parameter displays Malfunction if the starter relay control circuit is open. This parameter may not change if the scan tool is used to command the relay control circuit ON. |
| Total Engine Overspeed Time. | - | ms | The parameter displays total time of engine overspeed. |
| Turbocharger Vane Position Sensor | - | % | This parameter displays the current commanded state of the turbocharger vane position control solenoid valve by the control module. The scan tool will display a higher value as the solenoid is commanded open. The scan tool will display a lower value as the solenoid is commanded closed. |
| Turbocharger Vane Position Sensor | - | Voltage | This parameter displays the voltage signal sent to the control module from the sensor. The scan tool will display a higher value as the solenoid is commanded open. The scan tool will display a lower value as the solenoid is commanded closed. |
| Turbocharger Vane Position Solenoid Valve Circuit High Voltage Test Status | - | OK | This parameter displays the state of the Turbocharger Vane Position Solenoid Valve circuit. The parameter displays Malfunction if the Turbocharger Vane Position Solenoid valve circuit is shorted to voltage. |
| Turbocharger Vane Position Solenoid Valve Circuit Low Voltage Test Status | - | OK | This parameter displays the state of the Turbocharger Vane Position Solenoid Valve circuit. The parameter displays Malfunction if the Turbocharger Vane Position Solenoid valve circuit is shorted to ground. |
| Turbocharger Vane Position Solenoid Valve Circuit Open Test Status | - | OK | This parameter displays the state of the Turbocharger Vane Position Solenoid Valve circuit. The parameter displays Malfunction if the Turbocharger Vane Position Solenoid valve circuit is open. |
| Turbocharger Vane Position Solenoid Valve Command | - | % | This parameter displays the commanded duty cycle for the solenoid on variable geometry turbocharger. |
| Vehicle Speed | - | km/h/MPH | This parameter indicates the vehicle speed as calculated by the control module based on a signal from the vehicle speed sensor (VSS). The scan tool will display a higher value at higher vehicle speeds, and a lower value at lower vehicle speeds. |
| Vehicle Speed When Engine Overspeed Detected. | - | km/h/MPH | This parameter displays the km/miles when the engine overspeeds. |
| VIN Programming Counter. | - | Counts | This parameter displays how often the VIN been programmed. |
| Water in Fuel | - | No | This parameter indicates if there is water in the fuel. |
| Water in Fuel Indicator Command | - | Off | This parameter indicates if water in the fuel indicator is On or Off. |
Output Control
| Parameter | Description |
|---|---|
| A/C Compressor Clutch Relay | The engine must be running and the ECM must receive an A/C request from the HVAC control module in order to enable the output control. The ECM de-energizes the A/C compressor clutch relay when you select OFF. The relay remains de-energized until you select ON. |
| Cooling Fan Motor | The percent of engine cooling fan requested from the ECM. |
| Crankshaft Position Reluctor Wheel Learn | This device control is used to reset the crank wheel adaptation values in case of an ECU or crank wheel replacement. |
| Cylinder 1-4 Fuel Injector Correction Value Reset | This device control is to be used to reset the NVC and ZFC values to zero if one or more of the fuel injectors have been replaced. |
| Cylinder 1-4 Injector Correction Value Reset | This device control is to be used to reset the injector values to zero if one or more of the fuel injectors have been replaced. |
| Cylinder 1-4 Injector Flow Identifier | Contains the data that the Engine Control Module will need in order to do proper Injector Fuel Quantity adjustments. If a new ECM is being installed, this data shall be read from the old ECM and transferred to the new ECM. If an injector is replaced, the injector code must be downloaded to the ECM |
| Cylinder Balance Rate Monitor | This device control is used to enable or disable Cylinder Fuel Balancing. |
| Cylinder Power Balance | Disables each fuel injector. Device Control can be changed at any engine or vehicle speed. The device control will not change unless changed or cancelled by the scan tool. |
| EGR Valve | This device control is used to verify functionality of the Exhaust Gas Recirculation (EGR) system by allowing the Exhaust Gas Recirculation output to be commanded to a specific lift. |
| Engine Oil Life Reset | This device control contains the engine oil remaining life determined from a calibration based upon the effective engine revolutions and the distance driven since the last oil change. This device control may be used to reset the engine oil remaining life to 100% after an oil change or to any other value when replacing an engine control module. |
| Fuel Filter Life Reset | This device control resets the fuel filter life remaining to 100%. |
| Fuel Heater Relay | This device control is used to override the state of the Fuel Filter Heater output. |
| Fuel Pump Relay | This device control is used to override the state of the fuel pump output. |
| Fuel Rail Pressure | This device control is used to override the commanded fuel high pressure output from the powertrain controller. |
| Fuel Trim Reset | This device control is used to reset the Fuel Mass Observer data in case of a replacement. |
| Generator "L" Terminal | The commanded states are ON and OFF. Selecting OFF commands the ECM to turn OFF the generator and stop generating an output voltage. |
| Intake Air Flow Valve Motor | This function increases or decreases the position of the IAF valve. |
| Intake Air Flow Valve Position | This parameter displays the actual position of the intake air flow valve. |
| Intake Manifold Runner Control Valve | This device control is used to override the state of the intake manifold runner control output. |
| Malfunction Indicator Lamp (MIL) | This device control is used to either turn the Malfunction Indicator Lamp (MIL) on or off. |
| Turbocharger Vane Position | Adjusts the turbocharger vane position in 5 percent increments from 0-100 percent. The device control will be aborted if engine speed is above idle or if the coolant temperature is too cold. |
| Turbocharger Vane Solenoid Valve | Cycles the turbocharger vane position solenoid to 100 percent boost and back to 0 percent boost. The device control is limited to engine speeds less than 1, 500 RPM and will be disabled if DTC P0047 or P0048 are set. |