Component Specifications, Engine Control Module (ECM)
The component specification gives the value of the component when the connector is disconnected. Where no value is given, it is not possible to measure a relevant value at the component.
Numbers in parenthesis indicate to which pin of the component the value corresponds.
| Designation | Type | Supply voltage | Value | Miscellaneous |
| Air conditioning (A/C) relay | Mechanical relay | 12 V | 92 Ω ± 10 % at 23 °C | |
| System relay Starter relay |
Mechanical relay | 12 V | 82 Ω ± 10 % at 23 °C (coil) | |
| Battery Relay | Mechanical relay | 12 V | 43 Ω ± 10 % 23 °C (coil) | |
| A/C pressure sensor | Absolute pressure sensor | 5 V (#3) | Air conditioning (A/C) high pressure | |
| Brake light switch | Position switch | 12 V (#1) | The switch is closed when the pedal is depressed (terminals #1 - #5) | |
| Intake pressure sensor | 5 V (#3) | |||
| Fuel temperature sensor | NTC resistor | 5 V (#3) | 2500 Ω ± 6 % at 20 °C (#1 - #2) | Integrated in the fuel pressure sensor |
| Fuel pressure sensor | Piezo resistive pressure sensor | 5 V (#3) | ||
| Engine cooling fan (FC) control module | - | 12 V (#2) | ||
| Evaporative emission system (EVAP) valve | Electromagnetic valve | 12 V (#1) | 20.5 Ω ± 1.5 Ω | |
| Relief valve | Electromagnetic valve | 12 V | Coil 13.3 Ω | Off/On function |
| Accelerator pedal (AP) position sensor | Electronic pedal sensor with two output signals, PWM and a linear analog signal | 12 V (#1) power supply digital position sensor 5 V (#6) Power supply analog position sensor |
Only certain versions also have the analogue signals | |
| Throttle unit | Electronic throttle module (ETM) with two integrated potentiometers and a throttle motor | 5 V (#5) | 1.2Ω (#1-#2 motor winding) at normal operating temperature. | - |
| Fuel injector | Electromagnetic injector valve | 12 V (#2) | Approximately 12 Ω at 20 °C (#1 - #2) | |
| Camshaft position (CMP) sensor | Magneto-resistive sensor | 5 V (#1) | ||
| Knock sensor (KS) | Piezo electric component | Greater than 1 MΩ at 25 ± 10 °C (#1-#2) | ||
| Oil level and oil temperature sensor | 12 V (#1) | An oscilloscope must be used to detect changes in the oil level if a defective sensor is suspected. This is because the signals are based on a series of pulses consisting of temperature, level and quality. | ||
| Ignition coil | 12 V (#1) | Approximately 0.73 Ω (primary winding) | ||
| Preheating, front heated oxygen sensor | PTC resistor | 12 V (#3) | 2.18 - 2.68 Ω at 20 °C (#1 - #2) | |
| Preheating, rear heated oxygen sensor (HO2S) | PTC resistor | 12 V (#1) | Approx. 13 Ω ± 1, 3 Ω (#1 - #2) | |
| Leak diagnostic unit | Consists of pump, electromagnetic valve and an internal heating element (PTC resistor) | 12 V (#4) | 118Ω (#1-#4 pump motor winding) 29.5 Ω ± 10% (terminals #3-#4 Valve coil) 30Ω (#2-#4 Heating element) |
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| Engine coolant temperature (ECT) sensor | NTC resistor | 5 V (#1) | 15040 Ω at -20 °C 2450 Ω at 20 °C 318 Ω at 80 °C (#1 - #2) |
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| Reset valve camshaft | Electromagnetic valve | 12 V (#1) | 7.4 Ω ± 0.5 Ω at 20 °C (#1-#2) | |
| Engine speed (RPM) sensor | Hall sensor | 5 V (#3) | - | - |
| Outside temperature sensor | NTC resistor | 5 V (#1) | 18702 Ω at -20 °C 6318 Ω at 0 °C 2424 Ω at 20 °C 1034 Ω at 40 °C (#2 - #3) |
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| Charge pressure sensor | Piezo-resistive pressure sensor (pressure) NTC sensor (temperature) |
5V | 2.5 kΩ at 20 °C (temp) Max pressure 500 kPa |
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| Turbocharger (TC) control valve | Electromagnetic valve | 12 V | Coil 23 ± 1.2 Ω Current consumption 0.72 A at 12 V -40 °C and 100 % deployment. |
Adjustable 0 - 100 % (duty cycle) |
| Brake vacuum sensor | Piezo-resistive pressure sensor (pressure) | 5 V | -100 kPa = 4.5 V 0 kPa = 0.5 V |