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Fuel, Ignition and Engine Control Systems - Specifications, Electrical/electronic (Convertible): Other Volvo C70 I

Engine Control Systems 17 illustrations ~3256 words

Speed (km/h)

Measurement range 0 -255 km/h

The value displays the vehicle speed.

HINT: Miles per hour in certain markets.

Engine speed (RPM)

Measurement range 0-10400 RPM.

The control module derives the engine speed (RPM) from the engine speed (RPM) sensor signal.

The idle speed varies depending on the engine coolant temperature (ECT) (850 50 RPM).

Battery voltage (V)

Measurement range 0-20 V.

The normal value is 13-14.5 V when the generator (GEN) is charging.

The value indicates the voltage at the engine control module (ECM).

Engine coolant temperature (ECT) (°C)

Measurement range -40 - +120°C.

The control module derives the temperature from the engine coolant temperature (ECT) sensor signal.

Engine coolant temperature sensor (V)

Measurement range 0-5 V.

Operating range 0.28 - 4.83 V. The voltage drops as the temperature rises.

Atmospheric pressure (Pa)

Measurement range 0-2267 hPa.

The value indicates atmospheric pressure at the engine control module (ECM).

Normal value at sea level is 1,013 hPa.

Outside temperature (°C)

Measurement range -40 - +120°C.

The engine control module (ECM) derives the temperature from the outside temperature sensor signal.

Outside temperature sensor, signal (V)

Measurement range 0-5 V.

Operating range 0.09-4.62 V. The voltage drops as the temperature rises.

Assisted air control valve control (%)

Measurement range 0-100%.

Normal value with engine at operating temperature, approximately 35 - 50%.

Only applies to engines with assisted air control valve.

Accelerator pedal (AP), analog (%)

Measurement range 0-100%.

Analog signal from the accelerator pedal (AP) position sensor to the engine control module (ECM).

The value indicates the accelerator pedal (AP) position.

Approximately 8% = the accelerator pedal (AP) completely released.

Approximately 88% = the accelerator pedal (AP) completely depressed.

The analog signal is usually used by the engine control module (ECM).

HINT: The value must follow the parameter "Accelerator pedal (AP), PWM".

Accelerator pedal (AP), PWM (%)

Measurement range 0 -100%.

PWM signal from the accelerator pedal (AP) position sensor to the engine control module (ECM).

The value indicates the accelerator pedal (AP) position.

Approximately 8%= the accelerator pedal (AP) completely released.

Approximately 88%= the accelerator pedal (AP) completely depressed.

The PWM signal is used if there is a fault with the analog signal.

HINT: The value must follow the parameter "Accelerator pedal (AP), analog".

Accelerator pedal (AP) input signal, analog (V)

Measurement range 0-5 V.

The value is close to 0.4 V when the accelerator pedal (AP) is unaffected.

The voltage falls as the pedal is pressed.

Brake pedal position (%)

Measurement range 0-100%.

The value indicates the brake pedal position.

The value is between 15 - 25% when the brake pedal is unaffected. The value increases as the pedal is depressed.

Brake pedal position sensor (V)

Measurement range 0-5 V.

Operating range approx. 2-4.5 V. The voltage drops as the pedal is pressed.

Clutch pedal position (%)

Measurement range 0-100%.

The engine control module (ECM) calculates the value from the clutch pedal sensor signal.

The value indicates the clutch pedal position.

The value is approximately 5 - 15% when the clutch pedal is fully released. The value increases as the pedal is depressed.

Clutch pedal position sensor (V)

Measurement range 0-5 V.

Operating range approx. 2-3.5 V. The voltage drops as the pedal is pressed.

Throttle angle, desired value (%)

Measurement range 0-100%.

The value indicates the deployment signal from the engine control module (ECM) to the throttle unit.

0% = throttle shut.

100% = throttle fully open. This corresponds to an opening angle of approximately 84 degrees.

Throttle angle, actual value (%)

Measurement range 0-100%.

The control module derives the value from the signal from the electronic throttle module (ETM). The value indicates the throttle opening.

0% = throttle shut.

100% = throttle fully open. This corresponds to an opening angle of approximately 84 degrees.

Must follow the parameter "Throttle angle, desired value".

Air conditioning (A/C) linear pressure sensor (V)

Measurement range 0-5 V.

The value indicates the air conditioning (A/C) pressure sensor signal. The sensor must detect any change in pressure in the high pressure section of the air conditioning (A/C) system.

Air conditioning (A/C) pressure (Pa)

Measurement range 0- +3100 kPa.

The engine control module (ECM) calculates the value from the signal from the air conditioning (A/C) pressure sensor.

The value indicates the pressure at the high-pressure side of the air conditioning (A/C) system.

The engine control module (ECM) calculates the pressure based on the signal from the air conditioning (A/C) pressure sensor. The pressure is given as a value relative to the atmospheric pressure.

Purge valve, flow (liters per minute)

Measurement range 0-100 liters per minute.

The value indicates the estimated flow of the system through the purge valve. Used as an input parameter during compensation for other parts of the system.

Normal value at idle is 0 liters per minute when there is no purging and 5 - 40 liters per minute during purging.

EVAP valve, operating time on (s)

Measurement range 0-100,000 μs.

The value indicates the time that the PWM signal to the EVAP signal is high, i.e. the time that the valve is open and purging. 1000 μs corresponds to 1% opening.

The normal value at idle is 0 μs when there is no purging and 0 - 35,000 μs during purging.

Fuel tank pressure (Pa)

Certain markets only.

Measurement range -41 - +21 hPa.

The engine control module (ECM) derives the pressure in the fuel tank from the fuel tank pressure sensor signal.

The pressure is given as a value relative to the atmospheric pressure.

Intake pressure sensor, signal (V)

Measurement range 0-5 V.

Normal value approx. 3.6 V with the ignition on and atmospheric pressure at sea level.

The voltage increases with pressure in the intake manifold.

Pressure, intake manifold (Pa)

Measurement range -400 - +2267 hPa.

The pressure is given as a value relative to the atmospheric pressure.

Intake air temperature (IAT) (°C)

Measurement range -40 - +120°C.

The engine control module (ECM) calculates the temperature from the temperature sensor for intake air (integrated in the mass air flow (MAF) sensor).

Intake air temperature (IAT) sensor (V)

Measurement range 0-5 V.

Operating range 0.21-4.87 V. The voltage drops as the temperature rises.

The engine control module (ECM) retrieves the value from the temperature sensor for intake air (integrated in the mass air flow (MAF) sensor).

Mass air flow (Ga, g/s)

Measurement range 0-200 g/s.

The value indicates the mass air flow that passes through the mass air flow (MAF) sensor.

The engine control module (ECM) calculates the value based on the signal from the mass air flow (MAF) sensor.

Normal value with the engine at operating temperature and idling and under no load, neutral and air conditioning (A/C) switched off: approximately 4 g/s.

Note. Other values apply if the generator (GEN) is under load, if for example, high beam is on, the heated rear windshield is on etc.

Mass air flow (Gn, g/rev)

Measurement range 0 - 2 g/rev.

The normal value with an unloaded engine idling at operating temperature is approximately 0.24 g/rev.

The value indicates the mass air flow that passes through the mass air flow (MAF) sensor.

Air mass (V)

Measurement range 0-5 V.

Operating range approximately 0.5 - 4.5 V. The voltage increases with load.

Misfire counter 1-5

Counts the number of misfires in each cylinder.

Normal value is 0.

Knock sensor (CA)

Knock retardation requested due to knock in the cylinders.

Measurement range 0-72 CA.

Normal value 0 CA.

This value indicates the mean value of the timing retardation for all cylinders.

CA = Crank Angle.

Ignition advance (°)

Measurement range -20 - +62° btdc.

Normal value at idle, engine at operating temperature, A/C off, is approximately +12° btdc.

Injection period (s)

Measurement range 0-262,140 μs.

The control module controlled signal for injection period.

Normal value when the engine is idling at operating temperature: 2000 - 4000 μs.

Front heated oxygen sensor (HO2S), power consumption heater pad (A)

Probe heating in the front heated oxygen sensor (HO2S).

Measurement range -63 - +3163 mA.

Actual electrical consumption required to maintain the correct probe temperature.

Front heated oxygen sensor (HO2S)

Measurement range 0-2.

Normal value is lambda=1.

At rich mixture is lambda < 1.

At lean mixture is lambda>1.

Front heated oxygen sensor (HO2S), preheating resistance value (ohms)

The internal resistance of the front heated oxygen sensor (HO2S).

Measurement range 0.5 -3.0 ohms.

The normal value is approximately 2 ohms when the probe is at operating temperature.

Signal, rear heated oxygen sensor (V)

Measurement range 0-5 V.

The signal from the rear heated oxygen sensor (HO2S) to the engine control module (ECM).

Normal value when the engine is running at even load is approximately 0.6 V.

Long term fuel trim

The parameter displays the adaptation factor of the lambda probe.

Measurement range 0-2 lambda-adap.

Compensates the injection period at the relevant load so that the lambda value can be correctly reached.

Normal value 1.

There are five adaptation windows. Which window is active depends on the load.

Works together with "Lambda compensation".

When there is adjustment, this is visible in "Adaptation area 1-5".

Lambda compensation

The parameter displays the compensation factor of the lambda probe.

Measurement range 0-2.

lambda value compensation increases or reduces the injection period depending on the deviation.

Normal value 1.

Works together with "Long term fuel trim".

Actual adaptation range

This parameter displays which of the five adaptation ranges the engine is in.

Range 1 corresponds to idle speed. The range number increases with increased load and speed.

HINT: The adaptations are weighted between the values of each adaptation point in an adaptation area.

Adaptation area 1-5

This parameter displays the actual adaptation value for each adaptation area.

Measurement range 0-2.

Normal operating range 0.8-1.2.

Air conditioning (A/C) compressor, active

The deployment signal from the control module to the air conditioning (A/C) compressor relay.

OFF = The engine control module (ECM) does not activate the air conditioning (A/C) compressor relay.

ON = The engine control module (ECM) activates the air conditioning (A/C) compressor relay.

Engine cooling fan (FC)

ON = The engine control module (ECM) activates the engine cooling fan (FC).

OFF = The engine control module (ECM) does not activate the engine cooling fan (FC).

Stop lamp switch

The engine control module (ECM) calculates the value from the stop lamp switch signal.

ON = stop lamp switch on.

OFF = stop lamp switch unaffected.

Fuel pump (FP) relay

OFF = The engine control module (ECM) does not activate the fuel pump (FP) relay.

ON = The engine control module (ECM) activates the fuel pump (FP) relay via the central electronic module (CEM), 12 V.

EVAP canister shut-off valve

Certain markets only.

Displays whether the EVAP canister shut-off valve is open or closed.

The valve is normally open but closes when the leak diagnostic is run.

Camshaft sensor

Displays the pulses from the camshaft position (CMP) sensor (intake).

Switches between high and low as the camshaft rotates.

Adaptation status

Activated = The adaptation has been activated.

Not activated = Adaptation is inactive.

When all conditions are met for fuel system adaptation, the adaptation is considered to be active.

Ignition key in position II

OFF = ignition off.

ON = ignition on.

Ignition key in position III

OFF = starting mode off.

ON= start mode on.

Cruise control ON/OFF button

OFF = ON/OFF button unaffected.

ON = ON/OFF button affected.

Cruise control RESUME button

The cruise control must be on when reading this parameter.

OFF = resume button unaffected.

ON = resume button activated.

Cruise control SET- button

The cruise control must be on when reading this parameter.

OFF= SET- button unaffected.

ON = SET- button affected.

Cruise control SET+ button

The cruise control must be on when reading this parameter.

OFF= SET+ button unaffected.

ON = SET+ button affected.

Measurement range 0-100%.

The value indicates the signal sent from the engine control module (ECM) to the electronic throttle module (ETM).

0% = throttle shut.

100% = throttle fully open. This corresponds to an opening angle of approximately 84 degrees.

Measurement range 0-100%.

The control module derives the value from the signal from the electronic throttle module (ETM). The value indicates the throttle opening.

0% = throttle shut.

100% = throttle fully open. This corresponds to an opening angle of approximately 84 degrees.

Must follow the parameter "Throttle angle, desired value".

Injectors 1-5

Injectors 1-5 open and close approximately 6 times per second for 30 seconds.

The injector clicks.

The engine must be switched off.

Air conditioning (A/C) relay

Activated using the start button and stopped using the stop button. Air conditioning A/C must be requested from the control panel.

The air conditioning A/C magnetic clutch clicks.

Engine cooling fan (FC) low speed/high speed

The fan is activated using the start button and stopped using the stop button.

The fan can be heard.

MIL lamp

Malfunction indicator lamp (MIL). The engine must be running and the lamp out before activation. The lamp lights when the start button is pressed and goes out when the stop button is pressed.

Canister purge (CP) valve

The evaporative emission system (EVAP) valve opens and closes 5 times per second. Activated using the start button and stopped using the stop button.

The EVAP valve clicks.

Fuel pump

The engine control module (ECM) controls the fuel pump (FP) relay at 50 Hz. The fuel pump is activated using the start button and stopped using the stop button.

Fuel pump noise is heard from the fuel tank.

The engine must be switched off.

The EVAP canister shut-off valve is activated using the start button and stopped using the stop button.

The EVAP canister shut-off valve clicks.

A/C pressure sensor

The sensor gives the engine control module (ECM) information about the pressure in the air conditioning (climate unit).

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Absolute manifold absolute pressure (MAP) sensor5 V (#1)0.25 kPa = 0 V 517 kPa = 1 V 1206 kPa = 2 V 1894 kPa = 3 V 3100 kPa = 4.75 V (#2 - #3)(#2) output signal, (#3) signal ground

A/C pressure sensor

Accelerator pedal (AP) position sensor

The accelerator pedal sensor gives the engine control module (ECM) information about the accelerator pedal's position.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Electronic sensor12 V (#1) (PWM) 5 V (#6) (analogue)(#2) digital PWM output signal (#3) signal ground (PWM) (#5) analogue linear output signal (#4) signal ground (analogue)

Accelerator pedal (AP) position sensor

Air conditioning (A/C) pressostat

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (kPa)Miscellaneous
Magnetic clutch2950-3250Status, relay for the air conditioning (A/C) compressor: off
Magnetic clutch1600-1810Status, relay for the air conditioning (A/C) compressor: on

Air conditioning (A/C) pressostat

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Mechanical relay12 V (#1)96 ohms (coil) (#1-#2)(#2) (#3) (#4) (#5)

Air conditioning (A/C) relay

Air pressure sensor intake manifold (MAP)

Air pressure sensor intake manifold (MAP) gives the engine control module (ECM) information about the pressure of the air being sent into the engine.

The pressure is given in kPa and sinks with increased engine load (vacuum).

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Absolute manifold absolute pressure (MAP) sensor5 V (#3)3.6 V = 101 kPa 3.3 V = 90 kPa 2.7 V = 70 kPa 2.1 V = 50 kPa (#1 - #2)(#1) output signal (#2) signal ground

Air pressure sensor intake manifold (MAP)

Brake light switch

The brake light is activated when the brake light switch is closed.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Position switch12 V (#1)The switch is closed when the brake pedal is pressed down. (#1-#2)(#2) signal ground

Brake light switch

Brake pedal sensor

Position, mmResistance ohms
01300-2100
201000-1800
30900-1700
50600-1400

Brake pedal sensor

Camshaft position sensor

The sensor gives engine control module (ECM) information about the engine's work cycle. Certain vehicles have two camshaft position sensors, one on the intake side and one on the exhaust side.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Magneto-resistive sensor5 V (#1)(#2) signal ground (#3) output signal

Camshaft sensor

The valve controls the steam flow from canister to the engine.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Electromagnetic valve12 V (#1)20.5 10 ohms at 20°C (#1 - #2)(#2) control signal

Canister purge (CP) valve

Clutch pedal sensor

Position, mmResistance ohms
01500-2500
251000-2000
50750-1750
100500-1000

Clutch pedal sensor

Note. The table shows which values apply when taking readings from the piston rod for the clutch pedal position sensor!

Electric cooling fan engine control module (ECM)

The function of the electric cooling fan is to keep the control module's temperature below 70°C.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Engine cooling fan (FC)12 V (#1)(#2) signal ground

Electric cooling fan engine control module (ECM)

Electronic throttle unit (ETM)

The throttle module controls the engine's torque in all driving conditions (from idle to highest speed) by controlling the throttle unit with an electric motor.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Electronic throttle control module with two integrated potentiometers and a damper motor.5 V (#6)(#5) signal ground (#4) CAN L (connected to ECM) (#3) CAN H (connected to ECM) (#2) input signal brake light switch (#1) input signal accelerator pedal position sensor (PWM-signal)

Electronic throttle unit

Engine coolant level sensor

The function of the coolant level sensor is to indicate low coolant level.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Level-controlled switch12 V (#1)The switch is closed at normal coolant level.(#2) signal ground

Engine coolant level sensor

Engine coolant temperature (ECT) sensor

The engine temperature sensor gives engine control module (ECM) information about the coolant temperature. Engine control module (ECM) sends the signal on to Driver information module (DIM).

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
NTC resistor5 V (#1)15 kohms at -20°C 2.5 kohms at 20°C 0.3 kohms at 80°C (#1 - #2)(#2) signal ground

Engine coolant temperature (ECT) sensor

Fuel pump module (PEM) (only vehicles with demand-controlled fuel pump)

Fuel pump module (PEM) controls the endless variable fuel pressure control in cooperation with Engine control module (ECM), fuel pressure sensor with fuel temperature sensor, demand-controlled fuel pump with overflow valve, and atmospheric pressure sensor.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
12 V (#4)(#1) signal ground (fuel pump) (#2) ground (chassis) (#3) output signal (PWM-signal to fuel pump) (#5) input signal (from engine control module (ECM)) (#6 to #10) not used

Fuel pump module (PEM)

Ignition coil

The ignition coil generates a spark to a spark plug when the engine control module (ECM) says to do so. The diagnostics signal indicates if the component works.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Coil12 V (#4)(#1) control signal (#2) diagnostics signal (#3) signal ground

Ignition coil

Impulse sensor

The inductive sensor gives engine control module (ECM) information about the crankshaft's position and speed.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Hall sensor125.5 17 ohms at 20°C (#1 - #2)

Impulse sensor

Injector

There is an injector/cylinder. The function of the injector is to supply the cylinder with fuel.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Electromagnetic valve12 V (#1)13.8 ohms at 20°C (#1 - #2)(#2) control signal

Injector

Intake air temperature (IAT) sensor inlet

Temperature, °CResistance ohmsVoltage, V
060001.55
1040002.01
2024502.62
2520002.13
3018002.00

Intake air temperature (IAT) sensor inlet

Knock sensor

The knock sensor gives engine control module (ECM) information if it registers damaging knocking ignition. Some engines have both a front and rear knock sensor.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Piezo-electric crystal200 80 kohms (#1 - #2)(#1) + (#2)

Knock sensor

Mass air flow (MAF) sensor

The mass airflow sensor gives engine control module (ECM) information about the air mass that passes through the sensor, which then is sent into the engine as well as the temperature of that air.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Combined mass airflow sensor with air temperature sensor12 V (#1) (air mass) 5 V (# 4) (air temperature)1 V = 1.3 g/s at 20°C 4.4 V = 170 g/s at 20°C (#3 - #2) 16 kohms at -20°C 6 kohms at 0°C 2.5 kohms at 20°C 0.6 kohms at 60°C (#4 - #5)(#2) signal ground (air mass) (#3) output signal (air mass) (#5) signal ground (air temperature)

Mass air flow (MAF) sensor

Mass air flow (g/s)RPM at unloaded engine, warm engine (RPM)(V)(# component pin)
3,38501,3(#3 - #2)
5,715001,6(#3 - #2)
7,320001,7(#3 - #2)
9,325001,8(#3 - #2)

Comparison table

Oil pressure sensor

The oil pressure monitor's function is to send information to engine control module (ECM) at low oil pressure. Engine control module (ECM) sends the signal on to Driver information module (DIM) that activates the oil light.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Level-controlled switch12 V (#1)The switch is closed at normal oil level

Oil pressure sensor

Outside temperature sensor

Outside temperature sensor gives the engine control module (ECM) information about the temperature outside the vehicle.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
NTC resistor5 V (#1)18.7 kohms at -20°C 6.3 kohms at 0°C 2.4 kohms at 20°C 1 kohms at 40°C (#1 - #3)(#3) signal ground

Outside temperature sensor

Preheating, front heated oxygen sensor

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
PTC resistor12 V (#1)2.4 0.24 ohms at 20°C (#1 - #2)(#2) preheater (#3) signal ground (#4) output signal

Preheating, front heated oxygen sensor

Preheating, rear heated oxygen sensor

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
PTC resistor12 V (#1)2.4 0.24 ohms at 20°C (#1 - #2)(#2) preheater (#3) signal ground (#4) output signal

Preheating, rear heated oxygen sensor

Sensor for fuel pressure and fuel temperature (only for vehicles with demand-controlled fuel pump)

The pressure and temperature sensor gives the engine control module (ECM) information about the vehicle's fuel pressure and fuel temperature.

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
The sensor consists of both an NTC-resistor and a piezo-resistive pressure sensor5 V (#3)0.5 V = 50 kPa 4.5 V = 600 kPa (#2 - #1) 5.9 kohms at 0°C 3.8 kohms at 10°C 2.5 kohms at 20°C 1.7 kohms at 30°C 1.2 kohms at 40°C (#4 - #1)(#1) signal ground (#2) output signal (temperature) (#4) output signal (pressure)

Sensor for fuel pressure and fuel temperature

System relay

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Mechanical relay12 V (#1)470 ohms (coil)(#2) (#3) (#4)

System relay

VVT-valve camshaft (only certain markets)

The values should be regarded as approximate.

TypeVoltage feed (# component pin)Value (# component pin)Miscellaneous (# component pin)
Electromagnetic valve12 V (#1)3,7 - 11,1 ohms (#1 - #2)(#2) control signal

Preheating, front heated oxygen sensor (HO2S)

Resistance approximately 3 ohms (at 20°C)

Scheme 138

Scheme 138: Rear heated oxygen sensor (HO2S)

Binary probe

Preheating, rear heated oxygen sensor (HO2S)

Resistance approximately 10 ohms (at 20°C)

Scheme 139

Scheme 139: Ignition coil

Individually mounted ignition coil with integrated power driver

Scheme 140

Scheme 140: Spark plugs

Multi electron

Scheme 141

Scheme 141: Outside temperature sensor

NTC resistance.

Temperature (°C)010202530
R (ohms)1407912.8607.5500.0413.8
V (Volt)2.922.391.891.671.46

Scheme 142

Scheme 142: A/C pressure sensor

Linear pressure sensor. Measurement range 0-3100 kPa.

V (Volt)0.251.002.003.004.75
P (kPa)0517120618943100

Air conditioning (A/C) pressure switch (Pressostat)

Pressure controlled switch.

P (kPa)295-325160-180
StatusOnOff

Scheme 143

Scheme 143: Canister purge (CP) valve

Pulse ratio controlled valve. Resistance 29.7 1.4 ohms

Scheme 144

Scheme 144: EVAP canister shut-off valve

Solenoid valve. Resistance 17 1 ohms

Scheme 145

Scheme 145: Fuel tank pressure sensor

Piezo electric lineal pressure sensor.

P (kPa)2.01.500.5
V (Volt)1.702.103.303.70

Scheme 146

Scheme 146: Fuel pump (FP) relay

Frequency controlled mechanical relay

Scheme 147

Scheme 147: Air conditioning (A/C) relay

Mechanical relay. Resistance coil 96 ohms

Scheme 148

Scheme 148: Engine cooling fan (FC) relay

Two pole mechanical relay. Resistance 80 ohms

Scheme 149

Scheme 149: System relay (1)

Mechanical relay. Resistance 80 ohms

Scheme 150

Scheme 150: Clutch pedal sensor

Self-adjusting.

Position (mm)02550100
R (ohms)1500-25001000-2000750-1750500-1000

Scheme 151

Scheme 151: Brake pedal sensor

Self-adjusting.

Position (mm)0203050
R (ohms)1300-21001000-1800900-1700600-1400

Scheme 152

Scheme 152: Stop (brake) lamp switch

Two separate switches.

Scheme 153

Scheme 153: Engine coolant level switch

Level indicator

Scheme 154

Scheme 154: Oil pressure switch

Pressure controlled switch.