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Fuel Pump Flow Control Module Scan Tool Information > < Heating, Ventilation and Air Conditioning Control Module Scan Tool Information

Engine Control Module Scan Tool Information (LSF)

Table 1: Scan Tool Data Parameters
Table 2: Scan Tool Output Controls

Scan Tool Data Parameters


Parameter


System State


Expected Value


Description



Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop


A/C Compressor Clutch Relay Command


A/C ON


Active


This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.


A/C Disabled - A/C Pressure Out of Range


A/C ON


No


This parameter displays the A/C compressor disable status.


A/C Disabled - Engine Coolant Temperature too High


A/C ON


No


This parameter displays the A/C compressor disable status.


A/C High Side Pressure Sensor


A/C OFF


0-5 V


This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.


A/C ON


0-5 V


A/C High Side Pressure Sensor


A/C OFF


700-90 kPa (101-13 PSI)


This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the control module.


A/C ON


900-1 300 kPa (130-17 PSI)


A/C Off For Wide Open Throttle (WOT)


A/C ON


No


This parameter displays the A/C compressor disable status.


Accelerator Pedal Position


-


0%


This parameter displays the angle of accelerator pedal position as calculated by the control module using the signals from the APP sensors.


Accelerator Pedal Position When Engine Overspeed Detected


-


0%


This parameter displays the angle of accelerator pedal position as calculated by the control module using the signals from the APP sensors if an engine overspeed condition is detected.


Ambient Air Temperature


-


Varies with outside temperature


This parameter displays the outside temperature.


APP Sensor 1


-


1.02 V


This parameter displays the voltage of the APP sensor 1 signal circuit as measured by the control module.


APP Sensor 2


-


0.51 V


This parameter displays the voltage of the APP sensor 2 signal circuit as measured by the control module.


Barometric Pressure (BARO)


-


0-5 V - Varies with altitude


This parameter displays the barometric pressure in voltage. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.


BARO


-


65-104 kPa (8-16 PSI) Varies with altitude


This parameter displays the barometric pressure. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.


Boost Pressure Sensor


-


82-110 kPa (12-16 PSI)


This parameter displays the turbocharger boost pressure inside the engine as calculated by the control module based on the signal from the Boost pressure sensor.


Boost Pressure Sensor


-


1.45-1.75 V


This parameter displays the voltage of the turbocharger boost pressure inside the engine calculated by the control module based on the signal from the Boost pressure sensor.


Camshaft Position Sensor


Engine Cranking


Greater than 30 RPM


This parameter displays the speed of the engine camshaft rotation from information received from the camshaft position sensor.


Engine Idling


Approximately 375-42 RPM


Cooling Fan Relay 1 Command, Cooling Fan Relay 2 Command, Cooling Fan Relay 3 Command


Fans Commanded ON


On


This parameter displays the control module commanded state of the fan relay control circuits.


Clutch Pedal Position (CPP) Learn Status


-


Inactive


This parameter displays the clutch pedal learn status. There are 6 different possible states for the clutch pedal learn status.


CPP Learned Apply Position


-


0-5 V


This parameter displays the voltage of the applied clutch pedal learned position.


CPP Learned Release Position


-


0-5 V


This parameter displays the voltage of the released clutch pedal learned position.


CPP Sensor


-


0-5 V


This parameter displays the voltage of the clutch pedal position.


CPP Sensor


-


0-100%


This parameter displays the clutch pedal position.


Crank Request Signal


-


Inactive


This parameter shows the power mode status of the starter motor. When Active is displayed, a request to engage the starter has been received by the ECM.


Ignition switch in the crank position


Active


Cruise Control ON/OFF Switch


Cruise Control ON


On


This parameter displays the state of the cruise ON/OFF switch input to the control module.


Cruise Control Resume Switch


Cruise Resume/Acceleration Switch ON


Active


This parameter displays the state of the cruise Resume/Acceleration switch input to the control module from the cruise control system.


Cruise Control Set Switch


Cruise Set/Coast Switch ON


Active


This parameter displays the state of the cruise Set/Coast switch input to the control module from the cruise control system.


Current Gear When Engine Overspeed Detected


-


varies


This parameter displays the current gear during an engine overspeed condition is detected.


Cylinder 1 Balancing Rate, Cylinder 2 Balancing Rate, Cylinder 3 Balancing Rate, Cylinder 4 Balancing Rate


-


varies


This parameter displays the difference of fuel injection mass of each cylinder.


Cylinder 1 Maximum Combustion Pressure, Cylinder 2 Maximum Combustion Pressure, Cylinder 3 Maximum Combustion Pressure, Cylinder 4 Maximum Combustion Pressure


engine running


varies


This parameter displays the actual combustion chamber pressure of each cylinder.


Desired Air Flow


-


4-8 g/s


This parameter displays the desired air flow of the engine as calculated by the control module based on the signal from the Mass Air Flow Sensor.


Desired Boost Pressure


-


98 kPa (14.2 PSI)


This parameter displays the desired turbocharger boost pressure inside the engine as calculated by the control module based on the signal from the Boost pressure sensor.


Desired EGR Position


-


0-100%


This parameter displays the desired exhaust gas recirculation (EGR) position as calculated by the control module based on the signal from the EGR position sensor.


Desired Fuel Rail Pressure


-


20.00-45.00 MPa (2 900-6 527 PSI)


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.


Desired Idle Speed


-


700-80 RPM


This parameter displays the desired engine idle speed as commanded by the control module.


Desired Turbocharger Vane Position


-


0-100%


This parameter displays the desired turbocharger vane position as calculated by the control module based on the signal from the Boost pressure sensor.


Distance Since DTC Cleared


-


varies


This parameter displays the distance that has elapsed since the last DTC was cleared.


Distance Since Last DPF Regeneration


-


varies


This parameter displays the distance that has elapsed since the last diesel particulate filter regeneration has occurred.


Distance Since Last DPF Replacement


-


varies


This parameter displays the distance that has elapsed since the diesel particulate filter was replaced.


DPF Differential Pressure Sensor


-


0.00 kPa (0.00 PSI)


This parameter displays the difference between the front and rear pressures at the diesel particulate filter (DPF) as calculated by the ECM.


DPF Differential Pressure Sensor


-


0-5 V


This parameter displays the difference between the front and rear pressures at the DPF as calculated by the ECM.


DPF Regeneration Status


-


0-100%


This parameter displays the regeneration exhaust particulate filter.


DPF Soot Accumulation


-


0-180%


This parameter displays the amount of calculated soot in exhaust particulate filter.


ECT Sensor


-


-39 to +140°C (-38 to +284°F)


This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.


ECT Sensor


-


0-5 V


This parameter displays the voltage calculated by the control module from the engine coolant temperature (ECT) sensor.


EGR Command


-


40-55%


This parameter displays the percent of the duty cycle commanded by the control module.


EGR Position Sensor


-


0-100%


This parameter displays the percent of the EGR position calculated by the control module.


EGR Position Sensor


-


varies


This parameter displays the voltage of the EGR position calculated by the control module.


Engine Controls Ignition Relay Feedback Signal


-


11-14.5 V


This parameter displays the actual battery voltage.


Engine Load


-


varies


This parameter displays the actual battery voltage.


Engine Oil Life Remaining


-


varies


This parameter displays the remaining oil life.


Engine Oil Level Switch


-


OK


This parameter displays the status of the engine oil level switch as determined by the control module. The control module uses this information to turn on the low engine oil lamp if the engine oil level remains approximately 1.5 l low for a sufficient amount of time.


Engine Oil Pressure Switch


-


OK


This parameter displays the pressure of the engine oil calculated by the control module using a signal from the engine oil pressure sensor.


Engine Oil Temperature When Engine Overspeed Detected


-


varies


This parameter displays the temperature of the engine oil if overspeed detected.


Engine Overspeed


-


Not Present


This parameter displays the status if overspeed detected.


Engine Overspeed Counter


-


varies


This parameter displays the status if overspeed detected.


Engine Run Time


-


Increments when the engine is operating


This parameter displays the time elapsed since the engine was started.


Engine Speed


Engine Cranking


Greater than 60 RPM


This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position sensor. If there is a crankshaft position sensor DTC, the ECM calculates the engine speed from the camshaft position sensor.


Engine Idling


Approximately 750-85 RPM


Engine Speed When Engine Overspeed Detected


-


varies


This parameter displays the speed of the engine crankshaft rotation stored if an engine overspeed is detected.


Engine Start Counter


-


varies


This parameter displays the quantity of engine starts.


Exhaust Gas Temperature Sensor 1


-


varies


This parameter will display the exhaust temperature before the DPF. When the exhaust temperature is low, the scan tool will display a low temperature. When the exhaust temperature is high, the scan tool will display a high temperature.


Exhaust Gas Temperature Sensor 1


-


varies


This parameter displays the voltage calculated by the control module from the exhaust temperature before the DPF.


Exhaust Gas Temperature Sensor 2


-


varies


This parameter will display the exhaust temperature after the DPF. When the exhaust temperature is low, the scan tool will display a low temperature. When the exhaust temperature is high, the scan tool will display a high temperature.


Exhaust Gas Temperature Sensor 2


-


varies


This parameter displays the voltage calculated by the control module from the exhaust temperature after the DPF.


Fuel Level Sensor


-


varies


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 Pressure Regulator 1 Command


-


varies


This parameter displays the control modules commanded state of the fuel rail pressure regulator 1.


Fuel Pressure Regulator 1


-


1 300-1 400 mA


This parameter displays the control modules commanded state of the fuel rail pressure regulator 1.


Fuel Pressure Regulator 2 Command


-


20%


This parameter displays the control modules commanded state of the fuel rail pressure regulator 2.


Fuel Pressure Regulator 2


-


500-60 mA


This parameter displays the control modules commanded state of the fuel rail pressure regulator 2.


Fuel Pump Relay Command


Ignition ON, engine OFF


Fuel pump on for 2 s


This parameter displays the control modules commanded state of the fuel pump relay control circuit.


Engine idling


On


Fuel Rail Pressure Sensor


-


20.00-45.00 MPa (2 900-6 527 PSI)


This parameter displays the fuel rail pressure calculated by the control module using the signal from the fuel rail pressure sensor.


Fuel Rail Pressure Sensor


-


1.40-1.50 V


This parameter displays the voltage of the fuel rail pressure calculated by the control module using the signal from the fuel rail pressure sensor.


Fuel Temperature Sensor


-


25-40°C (77-104°F)


This parameter displays the fuel temperature calculated by the control module based on input from the fuel temperature sensor.


Fuel Temperature Sensor


-


2.80 V


This parameter displays the voltage calculated by the control module based on input from the fuel temperature sensor.


Generator F-Terminal Signal


-


25-35%


This parameter displays the commanded state of the generator by the control module.


Generator L-Terminal Signal


-


Active


This parameter indicates the generator commanded state by the ECM.


Glow Plug Command


-


Inactive


This parameter displays the control module commanded state of the glow plug.


Glow Plug Relay Command


-


Inactive


This parameter displays the control module commanded state of the glow plug.


Glow Plug Relay Feedback


-


Inactive


This parameter displays the control module feedback state of the glow plug.


HO2S 1 Heater Command


-


varies


This parameter displays the commanded state of the heated oxygen sensor (HO2S) heater by the control module. The scan tool will display a higher percentage as the heater command is increased, and a lower percentage if the heater is not commanded ON.


HO2S Bank 1 Sensor 1


-


50-850 mV and Varying


The scan tool displays a range of 0-1 106 mV. The HO2S bank 2 parameter represents the exhaust oxygen sensor output voltage. The voltage fluctuates constantly within a range between 10-1 000 mV, while operating in Closed Loop.


HO2S Bank 1 Sensor 1


-


varies


This parameter displays the air to fuel ratio calculated by the control module.


Intake Air Temperature (IAT) Sensor 1


-


-39 to +140°C (-38 to +284°F)


This parameter displays the temperature of the air entering the engine air duct calculated by the control module based on the input from the intake air temperature sensors.


Hood Position


-


varies


This parameter displays the current hood position, closed, ajar and open.


IAT Sensor 1


-


0-5 V


This parameter displays the voltage of the air entering the engine air duct calculated by the control module based on the input from the intake air temperature sensors.


IAT Sensor 2


-


-39 to +140°C (-38 to +284°F)


This parameter displays the temperature of the air entering the engine air duct after the turbocharger calculated by the control module based on the input from the intake air temperature sensors.


IAT Sensor 2


-


0-5 V


This parameter displays the voltage of the air entering the engine air duct after the turbocharger calculated by the control module based on the input from the intake air temperature sensors.


Ignition Switch Status


-


Active


This parameter displays the voltage measured at the ignition 1 circuit of the control module. Voltage is applied to the control module when the ignition switch is in the ignition 1 position.


Intake Air Flow Valve Motor Command


-


varies


This parameter displays the percent of the control modules commanded state of the intake air flow valve.


Intake Air Flow Valve Position


-


varies


This parameter displays the percent of the position of the intake air flow valve.


Intake Air Flow Valve Position Sensor


-


varies


This parameter displays the voltage of the position of the intake air flow valve.


Intake Manifold Runner Control Valve Control Circuit Command


-


varies


This parameter displays the percent of the control modules commanded state of the intake manifold runner valve.


Intake Manifold Runner Control Valve Control Circuit Command


-


varies


This parameter displays the degrees of the control modules commanded state of the intake manifold runner valve.


Intake Manifold Runner Control Valve Feedback Signal


-


varies


This parameter displays the feedback signal of the control modules commanded state from the intake manifold runner valve.


Mass Air Flow (MAF) Sensor


-


4-8 g/s


This parameter displays the air flow of the engine as calculated by the control module based on the signal from the Mass Air Flow Sensor.


MAF When Engine Overspeed Detected


-


varies


This parameter displays the air flow of the engine as calculated by the control module based on the signal from the Mass Air Flow Sensor if a engine overspeed condition is detected.


Maximum Engine Speed When Engine Overspeed Detected


-


varies


This parameter displays the maximum engine speed stored if an engine overspeed condition is detected.


Odometer When Engine Overspeed Detected


-


varies


This parameter displays the vehicle speed stored if an engine overspeed condition is detected.


Park/Neutral Position Switch


-


varies


This parameter displays the position of the shift lever.


Remaining Fuel in Tank


-


0-100%


This parameter displays the percentage of the actual fuel in tank.


Reverse Position Switch


-


Inactive


This parameter displays the status of the reverse gear position switch.


Starter Relay Command


-


Off


This parameter displays the commanded state of the starter relay.


System Voltage


-


11.0-14.5 V


This parameter displays the actual battery voltage.


Total Engine Overspeed Time


-


varies


This parameter displays the time, how long an engine overspeed condition was detected.


Total Fuel Injection Quantity Per Stroke


-


varies


This parameter displays the fuel amount per stroke.


Turbocharger Vane Position Sensor


-


0-100%


This parameter displays the percent of turbocharger vane position as calculated by the control module using the information from the turbocharger vane position sensor.


Turbocharger Vane Position Sensor


-


varies


This parameter displays the voltage of turbocharger vane position as calculated by the control module using the information from the turbocharger vane position sensor.


Turbocharger Vane Position Solenoid Valve Command


-


varies


This parameter displays the percent of the control modules commanded state of the turbocharger vane position valve based on the boost pressure sensor.


Vehicle Speed


-


0 km/h (0 MPH)


This parameter displays the speed of the vehicle as calculated by the engine control module (ECM) from information received from the antilock brake system.


Vehicle Speed When Engine Overspeed Detected


-


0 km/h (0 MPH)


This parameter displays the speed of the vehicle stored if an engine overspeed is detected.


Warm-ups Since DTC Cleared


-


varies


This parameter displays the number of warm starts counted by the control module since DTC cleared.


Water In Fuel Sensor


-


Inactive


This parameter displays the commanded state of the water in fuel lamp by the control module.

 

Scan Tool Output Controls


Output Control


Description


A/C Compressor Clutch Relay


This function activates the A/C compressor relay. The normal commanded state of the A/C relay is OFF. The A/C compressor will turn ON/OFF when commanded ON/OFF. The system remains in the commanded state for approximately 5 seconds. The engine control module (ECM) will inhibit the operation of the A/C relay when the ambient air temperature is low.


Auxiliary Coolant Pump


This function activates the auxiliary coolant pump. The coolant pump will turn ON/OFF when commanded ON/OFF.


Cooling Fan


Cooling Fan Speed Enable; Cooling Fan Speed


Cooling Fan Relay 1


Cooling Fan Speed Enable; Cooling Fan Speed


Cooling Fan Relay 2


Cooling Fan Speed Enable; Cooling Fan Speed


Cooling Fan Relay 3


Cooling Fan Speed Enable; Cooling Fan Speed


Crank Case Ventilation Heater


Crank Case Ventilation Heater Enable, Crank Case Ventilation Heater ON


Cylinder Power Balance


Fuel Injector Enable, Fuel Injector ON


EGR Cooler Bypass Valve


EGR Cooler Bypass Valve Enable, EGR Cooler Bypass Valve ON


EGR Valve


This function opens or closes the exhaust gas recirculation (EGR) solenoid. The EGR solenoid increases or decreases in 10 percent increments. The device control will not change unless changed or cancelled by the scan tool.


Engine Speed


This function adjusts the engine speed in 25, 100, or 500 RPM increments between 600-1 500 RPM. The Device Control will not change unless changed or cancelled by the scan tool.


Fuel Injector Balance


  Note:  This function is only allowed with the engine idling.

This function controls the fuel balance of the injectors. When commanded OFF the normal fuel differences is present. When commanded ON the cylinder specific RPM is displayed.


Fuel Pump Relay


This function activates the pump ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool.


Generator L-Terminal


This function controls the system voltage. When commanded ON, normal system voltage output is present. When commanded OFF, system voltage output is no longer present, Ignition 1 signal continues to drop, Generator L-Terminal goes to OFF and Generator F-Terminal continues to drop.


Glow Plugs


This function activates the Glow Plug Controller ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. The Device Control is inhibited if the engine is running.


HO2S Heater Sensor 1


HO2S Heater Sensor 1 Command 0-100%


Intake Air Flow Valve Position


Intake Air Flow Valve Position Command 0-100%


Intake Manifold Runner Control Valve


Intake Manifold Runner Command 0-100%


Starter Relay


Starter Relay Enable Starter Relay ON


Turbocharger Vane Position


Cycles the turbocharger vane position solenoid to 95 percent boost and back to 0 percent boost. The device control is limited to engine speeds less than 2 000 RPM.

 

Fuel Pump Flow Control Module Scan Tool Information > < Heating, Ventilation and Air Conditioning Control Module Scan Tool Information