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Read Values
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Unit
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Information
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Engine RPM
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RPM
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Current engine speed measured by the crankshaft position sensor.
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Battery Voltage
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V
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Displays the battery voltage read by the control module.
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Coolant Temperature
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°C
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The voltage across the NTC resistor is converted to a temperature. This value must agree with the temperature by the sensor.
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Coolant Temperature Sensor
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V
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Displays the voltage measured across the NTC resistor. One sensor pin is grounded internally in the control module and the other is fed with 5V via a control module integrated in the resistor.
The voltage measured across the resistor drops with an increase in temperature.
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Requested Idle RPM
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RPM
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Displays the idling speed requested by the control module. This value depends on the coolant temperature and possible adjustments made under the "Adjustments" menu.
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Wheel Speed LF
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km/h
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Wheel speed is sent over the bus by the TCS/ESP. It is used by functions such as cruise control and idle speed control.
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Accelerator Pedal
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%
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Displays the pedal position in %. Calculated from the voltage from pedal position sensor 1 and the adapted value for released pedal.
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Pedal Position Sensor 1
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V
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The voltage from pedal position sensor 1.
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Pedal Position Sensor 2
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V
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The voltage from pedal position sensor 2.
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Accelerator Pedal Released
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Displays whether the pedal is relseased - in idling position.
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Throttle Actuator
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%
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The actuator is controlled by a PWM signal. A low value means that the throttle is open.
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Signal from Throttle Actuator
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ms
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Displays feedback from the actuator.
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Swirl Actuator
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5
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The swirl throttle closes one intake port per cylinder to increase the swirl of air at low engine speeds.
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Signal from Swirl Actuator
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ms
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Displays feedback from the actuator.
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Charge Air Control Valve
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%
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Displays the PWM ratio supplied to the solenoid. The control module adjusts the PWM ratio until the current intake pressure agrees with the requested pressure.
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Mass Air Flow Sensor
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Hz
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Displays the frequency from the mass air flow sensor. The value is converted to a mass air flow.
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Air Mass Flow
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g/s
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The mass air flow sensor frequency is converted to a mass flow. This value is used to determine the smoke limit, which is the maximum permitted fuel mass that is injected.
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Requested Manifold Absolute Pressure
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kPa
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Displays the requested charge air pressure. Should be the same as the actual pressure when the engine is loaded.
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Manifold Absolute Pressure
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kPa
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The value when the engine is stationary should agree with the system's other pressure sensor, approx. 101 kPa at sea level and normal barometric pressure (1013 mbar).
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Manifold Absolute Pressure Sensor
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V
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Displays the sensor voltage. The value is converted to a pressure.
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Requested EGR
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%
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Displays the opening the control module has requested from the EGR valve.
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EGR Actuator
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%
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Displays the requested position.
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Intake Air Temperature Sensor
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V
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Displays the voltage measured across the NTC resistor. One sensor pin is grounded internally in the control module and the other is fed with 5V via a control module integrated in the resistor.
The voltage measured across the resistor drops with an increase in temperature.
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Intake Air Temperature
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°C
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The voltage across the NTC resistor is converted to a temperature. This value must agree with the temperature by the sensor.
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Exhaust Particle Filter Pressure Sensor
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V
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Displays the sensor voltage. The value is converted to a pressure.
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Exhaust Particle Filter Pressure
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kPa
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Displays the pressure difference between the particle filter's inlet and outlet. This value is used to determine whether the filter is clogged.
Pressures greater than 50 kPa are abnormal and generate a DTC.
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Exhaust Particle Filter Soot Density
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%
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Displays how much soot the particle filter contains as a % of normal capacity. The value depends on the driving conditions. The pressure sensor value is not used in this calculation.
Regeneration is performed as soon as there is a likelyhood that the value exceeds 90%. A value greater that 100% is not incorrect. It simply means that the driving conditions have not be suitable for regeneration yet.
The DTC generated for overflow depends on the counter pressure and not this value. It is normal that the value does not return completely to zero following regeneration.
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Exhaust Temperature 1
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°C
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The voltage across the temperature sensor converted to a temperature. The sensor is located after the primary catalytic converter. The value is used to determine when particle filter regeneration can be performed.
Approximate temperature - driving: max. 750°C - regeneration: max. 800°C.
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Exhaust Temperature Sensor 1
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V
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Voltage across the temperature sensor. The sensor is located after the primary catalytic converter.
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Exhaust Temperature 2
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°C
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The voltage across the temperature sensor converted to a temperature. The sensor is located after the main catalytic converter, which is enclosed in the same casing as the particle filter. The value is used to control the temperature during particle filter regeneration.
Approximate temperature - driving: max. 700°C. Target temperature for regeneration - approx. 630°C, max. 750°C.
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Exhaust Temperature Sensor 2
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V
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Voltage across the temperature sensor. The sensor is located after the primary catalytic converter.
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Fuel Temperature
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°C
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The voltage across the NTC resistor is converted to a temperature. This value must agree with the temperature by the sensor.
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Fuel Temperature Sensor
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V
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Displays the voltage measured across the NTC resistor. One sensor pin is grounded internally in the control module and the other is fed with 5V via a control module integrated in the resistor.
The voltage measured across the resistor drops with an increase in temperature.
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Camshaft RPM
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RPM
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Displays the pulses from the sensor, converted to rpm.
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Injection Angle
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°
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Displays when the control module requests that injection should start.
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Injected Fuel Quantity
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mm³/comb
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Displays the fuel quantity that is to be injected per cylinder.
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Target Fuel Pressure
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bar
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Displays the pressure requested by the control module.
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Fuel Pressure
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bar
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Displays the pressure in the fuel rail (after high-pressure pump).
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Fuel Pressure Sensor
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V
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Displays the sensor voltage. The value is converted to a pressure.
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Fuel Rail Solenoid PWM
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%
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Displays the current PWM ratio to maintain the desired fuel pressure.
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Fuel Rail Solenoid Amps
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mA
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Displays the present current through the solenoid.
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High Pressure Pump Solenoid PWM
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%
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Displays the current PWM ratio to maintain the desired fuel pressure.
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High Pressure Pump Solenoid Amps
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mA
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Displays the present current through the solenoid.
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Fuel Pump Relay
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ON/OFF
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The processors control of the transistor that applies B+ to the relay.
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Fan Control Output 1
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ON/OFF
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The cooling fans are energized via a relay unit that is controlled by the engine management system with 3 separate outputs. The value displays processor control of the transistor that grounds the relay circuit.
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Fan Control Output 2
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ON/OFF
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The cooling fans are energized via a relay unit that is controlled by the engine management system with 3 separate outputs. The value displays processor control of the transistor that grounds the relay circuit.
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Fan Control Output 3
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ON/OFFON/OFF
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The cooling fans are energized via a relay unit that is controlled by the engine management system with 3 separate outputs. The value displays processor control of the transistor that grounds the relay circuit.
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Glowing
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ON/OFF
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Displays whether the control module has requested the glow function.
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Glow feedback
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ON/OFF
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Displays the status of power amplifier feedback to the control module. The value is used to generate fault codes in case of malfunction.
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Brake Light Switch
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ON/OFF
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+30 feeds the brake light switch. Normally open. When the brake pedal is depressed, +30 is fed to the brake lights via the REC and directly to the engine management system.
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Clutch Pedal Switch
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ON/OFF
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+15 feeds the clutch pedal switch. Normally closed to the engine management system. When the clutch pedal is depressed, the power supply is interrupted.
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Brake Pedal Switch
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ON/OFF
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+15 feeds the brake pedal switch. Normally closed to the engine management system. When the brake pedal is depressed, the power supply is interrupted.
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A/C In
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ON/OFF
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A/C request is sent on the bus by the ACC.
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A/C Out
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ON/OFF
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The A/C relay is controlled by the engine management system. Displays processor control of the transistor that grounds the relay circuit.
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Oil Level Switch
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ON/OFF
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Displays the status of the engine oil. The contact grounds the circuit if the level is too low.
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Remaining Oil Life
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%
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Displays the calculated service life of the oil as a percent.
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Engine Torque
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Nm
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Shows current engine torque.
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ESP Max Engine Torque
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Nm
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Max. permitted engine torque. Data sent by the ESP.
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Transmission Max Engine Torque
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Nm
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Max. permitted engine torque for the automatic gearbox. Data sent by the TCM.
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Ignition +15
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Shows that the control module is supplied with +15 voltage.
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Cruise SET
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ON/OFF
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Cruise control system's SET control module input.
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Cruise RES
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ON/OFF
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Cruise control system's RES control module input.
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Cruise CANCEL
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ON/OFF
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Cruise control system's CANCEL control module input.
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Check Engine
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ON/OFF
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Displays whether MIL is requested.
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CONDITIONS FOR CRUISE CONTROL
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CONDITIONS FOR CRUISE CONTROL
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Cruise Control
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ON/OFF
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Shows if cruise control is active.
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Vehicle speed within limit values
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ON/OFF
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Displays whether engine speed allows the engagement of cruise control.
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2nd gear or higher engaged
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ON/OFF
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Displays whether the current gear position permits the use of cruise control.
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Valid Brake Signal
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ON/OFF
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Displays that the control module has received a valid brake signal (cruise control function switched off prior to reception of valid signal).
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REASON CC WAS SWITCHED OFF
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CANCEL Was Used
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ON/OFF
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Displays whether the cruise control function was turned with the CANCEL button.
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Trouble Code Detected
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ON/OFF
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Displays that a DTC that prohibits cruise control is present in the control module.
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Engine RPM is out of Range
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ON/OFF
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Displays whether the cruise control was disengaged due to the engine speed being too high.
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TCS was Active (Bus from TC/ABS)
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ON/OFF
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Displays whether the cruise control was disengaged due to activation of the anti-spin function.
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Ignition Key Position
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ON/OFF
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Displays whether the cruise control was disengaged due to the incorrect position of the ignition key.
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Deviation from Requested Cruise Speed
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ON/OFF
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Displays whether the cruise control was disengaged due to vehicle speed varying too greatly from the requested cruise control speed.
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Decleration was too high
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ON/OFF
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Displays whether the cruise control was disengaged due to heavy braking.
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Gear Was Disengaged
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ON/OFF
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Displays whether the cruise control was disengaged due to gear disengagement.
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Brake Switch. Cruise Control
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ON/OFF
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Displays whether the cruise control was disengaged due to a signal from the brake pedal sensor.
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Clutch Switch. Cruise Control
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ON/OFF
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Displays whether the cruise control was disengaged due to a signal from the clutch pedal switch.
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