Component Specifications, Engine Control Module (ECM) [2014-2016, B4204T11]
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.
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) |
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| 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 |
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| 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 |
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| 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 | - | - | - |