Component Specifications, Engine Control Module (ECM) [2014-2016, B4204T11 | 2014-2016, B4204T12]
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.
Supply voltage can often be measured in the connector.
| Designation | Type | Supply voltage | Value | Miscellaneous |
| A/C pressure sensor | Absolute manifold absolute pressure (MAP) sensor | 5 V (#2) | - | - |
| Brake light switch | Position switch | 12 V (#2) | The switch is closed when the pedal is depressed (terminals #1-#2) | - |
| Brake vacuum sensor | - | 5 V (#3) | - | - |
| Fuel pressure sensor high pressure side | - | 5 V (#1) | 0.7 Ω at 20 °C (coil) | - |
| Fuel pressure sensor low pressure side | - | 5 V (#1) | 2.7 Ω at 20 °C (coil) | - |
| Fuel quantity valve | Pulse width modulation (PWM) signal controlled | 12 V (#2) | 0.5 Ω at 20 °C (coil) | - |
| Supercharger control valve bypass | Pulse width modulation (PWM) signal controlled | 5 V (#5) | 2 ±10 % Ω at 25 °C | - |
| Control module engine cooling fan / engine cooling fan | Pulse width modulation (PWM) signal controlled | 12 V (#1) | - | - |
| Control valve, engine oil pump | Pulse width modulation (PWM) signal controlled | 12 V (#1) | 10.1 Ω ± 10 % at 20°C | - |
| Electric thermostat | Pulse width modulation (PWM) signal controlled | 12 V (#1) | 15.3 ± 2 Ω at 20°C | - |
| Evaporative emission system (EVAP) valve | Pulse width modulation (PWM) signal controlled | 12 V (#1) | 24.5 Ω at 20°C | - |
| Front heated oxygen sensor (HO2S) | Linear probe | 12 V (#1) | 2.4 Ω +0.48/-0.24 Ω at 20°C Min 1.7 Ω at -40 °C |
- |
| Middle heated oxygen sensor (HO2S) | Binary probe | 12 V (#1) | (6.6 W) 13 +2.4/-1.3 Ω at 20 °C (6.6 W) 10.5 Ω at -40 °C (12 W) 5.6 +1.2/-0.6 Ω at 20 °C (12 W) 4.7 Ω at -40 °C |
- |
| Rear heated oxygen sensor | Binary probe | 12 V (#1) | 2 ±0.2 Ω at 20°C Min 1.3 Ω at -40 °C |
- |
| Accelerator pedal position sensor | Electronic pedal position sensor with two output signals that are independent of one another - one PWM and one linear analog signal. | - | - | The analogue signal is connected to the Central Electronic Module (CEM). |
| Engine speed (RPM) sensor | Inductive sensor with permanent magnet | - | 125.5 ±17 % Ω at 20°C (#1 - #2) | - |
| Fuel injectors | Pulse width modulation (PWM) signal controlled | - | ~1.9 Ω at 20°C (#1 - #2) | - |
| Intake/exhaust camshaft position sensor | Hall sensor | 5 V (#1) | - | - |
| Knock sensor | Piezo | - | 200 kΩ ±40 % | - |
| Clutch pedal switch 75 % | Position switch | 12 V (#1) | - | - |
| Supercharger clutch | Pulse width modulation (PWM) signal controlled | - | 4.1 Ω ±10 % at 20°C | - |
| Coolant temperature sensor | NTC resistor | 5 V (#1) | 5740 Ω at 0 °C 3700 Ω at 10 °C 2450 Ω at 20 °C 1150 Ω at 40 °C 584 Ω at 60 °C 318 Ω at 80 °C 141 Ω at 110 °C (#1 - #2) |
- |
| Boost pressure sensor after compressor | - | 5 V (#1) | - | - |
| Absolute pressure sensor inlet manifold | - | 5 V (#1) | - | - |
| Mass air flow sensor and Intake temperature sensor intake | Mass air flow sensor: Hot film sensor Temperature sensor: NTC-resistor |
12 V (#3) | Mass air flow sensor: Frequency modulated (FM) 5 V signal. 1-15 kHz. The frequency increases with increased mass air flow. Temperature sensor: 16 ±1.6 kΩ at -20 °C 2.45 ±1 kΩ at 20°C 580 ±50 % Ω at 60 °C |
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| Leak diagnostic unit | - | 12 V (#4) | Valve 29.5 Ω ±10 % at 20°C Pump 118 Ω at 20 °C Preheating 20 - 50 Ω at 20 °C |
- |
| Neutral Position Sensor | Position sensor with two independent output signals | 5 V (#2) | Two PWM signals for redundancy: PWM1: 10 % - 90 % PWM2: 10 % - 70 % |
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| Engine oil pressure and engine oil temperature sensor | Combined absolute pressure and temperature sensor | 5 V (#1) | Pulse train consisting of three separate PMW signals. 1) Diagnostic signal (max pulse width = 1024 μs): 25 % (256 μs) of the sensor is trouble-free. >35 % (>350 μs) of the sensor is faulty. 2) Temperature signal (max pulse width = 4096 μs): 3 % (128 μs) corresponds to -40 °C. 97 % (3968 μs) corresponds to 160 °C. 3) Pressure signal (max pulse width = 4096 μs): 3 % (128 μs) corresponds to 50 kPa. 97 % (3968 μs) corresponds to 1050 kPa. |
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| Engine oil level sensor | - | 5 V (#1) | 10 - 20 Ω | - |
| Throttle unit | Electronic throttle module with pulse width modulation (PWM) signal controlled DC motor and two integrated position sensors. | 5 V (#3) | 1.38 Ω (#1-#2 motor winding) | - |
| Camshaft control valve, intake/exhaust | Pulse width modulation (PWM) signal controlled | 12 V (#1) | 6.2 ±0.5 Ω at -40 °C 8.5 ±0.5 Ω at 20°C 12.2 ±0.5 Ω at 150°C |
- |
| System relay | Mechanical relay | 12 V (#1) 12 V (#2) |
~70 Ω (coil), (#2 and #4) | - |
| Starter motor relay | Mechanical relay | 12 V (#1) 12 V (#2) |
~70 Ω (coil), (#2 and #4) | - |
| Boost pressure and air temperature sensor 1 | - | 5 V (#3) | 15.45 kΩ at -20 °C 5.9 kΩ at 0 °C 2.5 kΩ at 20 °C 1.15 kΩ at 40 °C |
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| Relief valve | Pulse width modulation (PWM) signal controlled | 12 V (#1) | ~10.5 ±0.7 Ω at 20°C | Turbo control valve By-pass |
| Turbocharger (TC) control valve | PWM-controlled, On/Off-type | 12 V (#1) | ~10.5 ±0.7 Ω at 20°C | Turbo control valve Wastegate |
| Air conditioning (A/C) compressor | Pulse width modulation (PWM) signal controlled | 12 V (#B2) | ~10.6 ±0.5 Ω | - |
| Ignition coils | Pulse signal | 12 V (#3) | Nominal 350 Ω 245 - 504 Ω |
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| Outside temperature sensor | - | - | ~18.7 kΩ at -20°C ~10.7 kΩ at -10 °C ~6.3 kΩ at 0°C ~2.4 kΩ at 20°C ~1.0 kΩ at 40°C |
Analog signal U=0-5 V |
| Fuel pump control module | Pulse width modulation (PWM) signal controlled | Powered via the Central Electronic Module (CEM). | - | - |
| Battery Relay | Mechanical relay | - | - | - |
| Secondary Battery Relay | Mechanical relay | - | - | - |