Signal specification (B5244SG/SG2)
General
All values given below are between the terminals stated in column 1 and breakout box terminal #B2. Control module terminals #A1-#A60 correspond to terminals #A1-#A60 on the breakout box, terminals #A61-#A70 correspond to terminals #B1-#B11 on the breakout box and terminals #B1-#B50 correspond to terminals #B10-#B60 on the breakout box.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
HINT: If the numbering of the connector is different from the numbering on the breakout box, the connector number is given first, terminal #A61, followed by the breakout box number in brackets, (terminal #B1). Example: #A61 (#B1).
| U= | DC voltage in volts (V) | U A/C = | AC voltage in volts (V) |
| U bat = | Battery voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| U low = | Voltage near 0V or 0V | %pulse = | Pulse ratio (%) |
| t = | Time in milliseconds (ms) |
Connector terminals #A1-#A70
| Terminal | Breakout box | Signal type | Ignition on | Idling speed | Other |
|---|---|---|---|---|---|
| #A1 | (#A1) | Shut-off valve control signal | U = Ubat | PWM signal during control of the shut-off valve | |
| #A2 | (#A2) | Control signal Canister purge (CP) valve |
U = Ubat | PWM signal during activation of the EVAP canister shut-off valve | |
| #A3 | (#A3) | - | - | - | - |
| #A4 | (#A4) | Signal (+) intake temperature sensor, integrated in the mass air flow (MAF) sensor |
- | (+10°C) U= 2.90V (+20°C) U=2.38V (+30°C) U=1.89V |
- |
| #A5 | (#A5) | Control signal engine cooling fan (FC) high-speed |
Engine cooling fan (FC) off U = Ubat Engine cooling fan (FC) on U = Ulow |
- | - |
| #A6 | (#A6) | Control signal engine cooling fan (FC) low-speed |
Engine cooling fan (FC) off U = Ubat Engine cooling fan (FC) on U = Ulow |
- | - |
| #A7 | (#A7) | - | - | - | - |
| #A8 | (#A8) | - | - | - | - |
| #A9 | (#A9) | - | - | - | - |
| #A10 | (#A10) | - | - | - | - |
| #A11 | (#A11) | Control signal preheating rear heated oxygen sensor (HO2S) |
U = Ubat | Preheating off U = Ubat Preheating |
- |
| #A12 | (#A12) | - | - | - | - |
| #A13 | (#A13) | - | - | - | - |
| #A14 | (#A14) | Control signal injector no. 5 |
U = Ubat | t = 2-3 ms | t increases with engine speed (RPM) and load |
| #A15 | (#A15) | Control signal injector no. 3 |
U = Ubat | tlow = 2-3 ms | t increases with engine speed (RPM) and load |
| #A16 | (#A16) | Control signal injector no. 1 |
U = Ubat | tlow = 2-3 ms | t increases with engine speed (RPM) and load |
| #A17 | (#A17) | - | - | - | - |
| #A18 | (#A18) | Control signal preheating front heated oxygen sensor (HO2S) |
U = Ubat | Preheating off U = Ubat Preheating U = Ubat |
- |
| #A19 | (#A19) | - | - | - | - |
| #A20 | (#A20) | - | - | - | - |
| #A21 | (#A21) | Signal A/C pressure sensor |
U=0.9V (at approximately 20°C) | - | U increases with increased pressure in the system |
| #A22 | (#A22) | Mass air flow (MAF) sensor signal | U=0.58V | U=1.33V Unloaded, engine at operating temperature |
U increases with increasing air mass |
| #A23 | (#A23) | Signal manifold absolute pressure (MAP) sensor |
U= 1.64V atmospheric pressure at sea level |
- | U increases with increasing pressure in the intake manifold |
| #A24 | (#A24) | Signal (+) front heated oxygen sensor (HO2S) signal (+) |
- | λ=0.95V>700mV λ=1.10V<200mV |
- |
| #A25 | (#A25) | - | - | - | - |
| #A26 | (#A26) | - | - | - | - |
| #A27 | (#A27) | - | - | - | - |
| #A28 | (#A28) | Signal ignition discharge module (IDM) check, ignition coils |
- | - | - |
| #A29 | (#A29) | Control signal ignition coil no. 3 |
U = Ulow | U = 2.5 volt thigh = 2 ms |
the frequency varies according to engine speed (RPM) |
| #A30 | (#A30) | Control signal ignition coil no. 2 |
U = Ulow | U = 2.5 volt thigh = 2 ms |
the frequency varies according to engine speed (RPM) |
| #A31 | (#A31) | Control signal ignition coil no. 1 |
U = Ulow | U = 2.5 volt thigh = 2.5 ms |
the frequency varies according to engine speed (RPM) |
| #A32 | (#A32) | - | - | - | - |
| #A33 | (#A33) | Control signal injector no. 4 |
U = Ubat | tlow = 2-3 ms | t increases with engine speed (RPM) and load |
| #A34 | (#A34) | Control signal injector no. 2 |
U = Ubat | tlow = 2-3 ms | t increases with engine speed (RPM) and load |
| #A35 | (#A35) | - | - | - | - |
| #A36 | (#A36) | Power ground preheating, front heated oxygen sensor (HO2S) |
U = Ulow | - | - |
| #A37 | (#A37) | Communication cable control modules (CAN H) |
- | - | Between the engine control module (ECM) and the throttle unit |
| #A38 | (#A38) | Control signal stop lamp switch |
U = Ulow (not activated) U = Uhigh (activated) |
- | Between the engine control module (ECM) and the throttle unit |
| #A39 | (#A39) | Oil pressure switch | U = Ulow (no oil pressure) | U = Ubat | - |
| #A40 | (#A40) | Signal (+) the engine coolant temperature (ECT) sensor |
- | (+20°C) U=3.1V (+30°C) U=2.6V (+80°C) U=0.9V (+100°C) U=0.5V |
- |
| #A41 | (#A41) | Signal (-) front heated oxygen sensor (HO2S) |
- | λ= 1 when the current is approximately +0.2 mA | Negative current when the fuel air mixture is rich. Range: -12 mA, +12 mA |
| #A42 | (#A42) | Signal (+) front heated oxygen sensor (HO2S) |
- | λ= 1 when the current is approximately +0.2 mA | Positive current when the fuel air mixture is lean. Range: -12 mA, +12 mA |
| #A43 | (#A43) | - | - | - | - |
| #A44 | (#A44) | - | - | - | - |
| #A45 | (#A45) | - | - | - | - |
| #A46 | (#A46) | Signal (+) knock sensor (KS) |
- | - | - |
| #A47 | (#A47) | Signal (+) the camshaft position (CMP) sensor |
U≈5 V or U=Ulow | f≈35 Hz U≈2.5 V | The frequency increases with engine speed (RPM) |
| #A48 | (#A48) | Signal (+) engine speed (RPM) sensor |
U=2.5V U = Ulow |
U = sine wave voltage | - |
| #A49 | (#A49) | - | - | - | - |
| #A50 | (#A50) | Control signal ignition coil no. 5 |
U = Ulow | U = 2.5 volt thigh = 2 ms |
the frequency varies according to engine speed (RPM) |
| #A51 | (#A51) | Control signal ignition coil no. 4 |
U = Ulow | U = 2.5 volt thigh = 2 ms |
the frequency varies according to engine speed (RPM) |
| #A52 | (#A52) | Control signal Air assisted control valve (AACV) |
- | - | - |
| #A53 | (#A53) | Power ground terminal 3 | Ulow | - | - |
| #A54 | (#A54) | Power ground terminal 2 | Ulow | - | - |
| #A55 | (#A55) | Communication cable control modules (CAN L) |
- | - | Between the engine control module (ECM) and the throttle unit |
| #A56 | (#A56) | Control signal accelerator pedal (AP) position sensor, pulse width modulation (PWM) signal |
Utop=12V t = 4 ms pulse ratio = 8%-88% |
- | Between the engine control module (ECM) and the throttle unit |
| #A57 | (#A57) | Power supply, camshaft position (CMP) sensor | U=5 volt | - | - |
| #A58 | (#A58) | Power supply, manifold absolute pressure (MAP) sensor A/C pressure sensor |
U=5 volt | - | - |
| #A59 | (#A59) | Fuel tank pressure | - | - | U=0-5V depending on the amount of fuel |
| #A60 | (#A60) | Signal ground mass air flow (MAF) sensor |
U = Ulow | - | - |
| #A61 | (#B1) | Signal ground intake temperature the engine coolant temperature (ECT) sensor rear heated oxygen sensor (HO2S) |
U = Ulow | - | - |
| #A62 | (#B2) | Power ground terminal 1 | U = Ulow | - | - |
| #A63 | (#B3) | - | - | - | - |
| #A64 | (#B4) | Signal (-) knock sensor (KS) |
- | - | - |
| #A65 | (#B5) | Signal ground the camshaft position (CMP) sensor |
U = Ulow | - | - |
| #A66 | (#B6) | Signal ground engine speed (RPM) sensor |
U = Ulow | - | - |
| #A67 | (#B7) | - | - | - | - |
| #A68 | (#B8) | - | - | - | - |
| #A69 | (#B9) | Control signal preheating front heated oxygen sensor (HO2S) |
U = Ubat | Preheating off U = Ubat Preheating U = Ubat |
B+ from the system relay |
| #A70 | (#B10) | Power supply | U = Ubat | - | B+ from the system relay |
Connector terminals #B1-#B50
| Terminal | Breakout box | Signal type | Ignition on | Engine idling | Other |
| #B1 | (#B11) | Communication cable control modules (CAN L) |
- | - | Between the engine control module (ECM) and the CAN driver module |
| #B2 | (#B12) | - | - | - | - |
| #B3 | (#B13) | Gas / gasoline operation switch, control signal | - | - | The PWM signal for gas / gasoline is supplied with power from 11C/3:3 |
| #B4 | (#B14) | Signal ground intake air temperature (IAT) sensor fuel tank pressure sensor clutch pedal sensor brake pedal sensor |
U = Ulow | - | - |
| #B5 | (#B15) | Signal ground accelerator pedal (AP) position sensor |
U = Ulow | - | - |
| #B6 | (#B16) | - | - | - | - |
| #B7 | (#B17) | - | - | - | - |
| #B8 | (#B18) | Coolant level sensor | U = Ulow | - | - |
| #B9 | (#B19) | Power supply accelerator pedal (AP) position sensor, analog sensor |
U=5 volt | - | - |
| #B10 | (#B20) | Power supply fuel tank pressure sensor |
U=5 volt | - | - |
| #B11 | (#B21) | 30-supply (Power supply from the battery) | U = Ubat | - | - |
| #B12 | (#B22) | - | - | - | - |
| #B13 | (#B23) | Control modules communication cable (CAN H) | - | - | Between the engine control module (ECM) and the CAN driver module |
| #B14 | (#B24) | - | - | - | - |
| #B15 | (#B25) | Signal clutch pedal sensor |
U=3.3 volts (unaffected) U=2.2 volts (fully depressed, 100 mm) |
- | Varies depending on the position of the clutch pedal |
| #B16 | (#B26) | Signal brake sensor |
U=3.1 volts (unaffected) U=2.6 volts (25 mm depressed) |
- | Varies depending on the position of the brake pedal |
| #B17 | (#B27) | Signal accelerator pedal (AP) position sensor, analog signal |
U=0.4 volts (idling) U=4.4 volt (wide open throttle (WOT)) |
- | Varies depending on the position of the accelerator pedal (AP) |
| #B18 | (#B28) | - | - | - | - |
| #B19 | (#B29) | Signal (+) cruise control SET+ |
- | - | - |
| #B20 | (#B30) | Signal (+) cruise control RESUME |
- | - | - |
| #B21 | (#B31) | Gas / gasoline operation switch, output signal | - | - | PWM signal to the LED |
| #B22 | (#B32) | Immobilizer communication cable (also data link connector (DLC) communication link) | No communication on the cable: U=90% of Ubat
. During communication: Data communication, pulsed signal between Ubat and 0 V. |
Other values apply if a generic fault-tracing instrument is connected to the data link connector (DLC). | The engine control module (ECM) and immobilizer control module communicate with each other for 2 seconds after the ignition is switched on to determine whether engine start should be permitted. After this time, the immobilizer control module changes internally so that the cable is connected to the communication port in the data link connector (DLC) (terminal #7). |
| #B23 | (#B33) | Signal (+) crank, +50 supply |
U = Ulow | U = Ulow | U = Ubat at crank |
| #B24 | (#B34) | - | - | - | - |
| #B25 | (#B35) | Signal (+) accelerator pedal (AP) position sensor, PWM signal |
Utop = Ubat T = 4 ms pulse ratio = 8%-88% |
- | Between the accelerator pedal (AP) position sensor and the engine control module (ECM) |
| #B26 | (#B36 | Signal (+) stop lamp switch |
U = Ubat when the brake pedal is depressed U = Ulow when the brake pedal is not depressed |
- | - |
| #B27 | (#B37) | Output signal Engine coolant temperature (ECT) to the air conditioning (A/C) system |
Utop = Ubat t = 4 ms pulse ratio = varies with engine coolant temperature (ECT) |
- | - |
| #B28 | (#B38) | - | - | - | - |
| #B29 | (#B39) | Signal outside temperature sensor |
(0°C) U=2.34V (+10°C) U=1.82V (+20°C) U=1.38V (+25°C) U=1.19V (+30°C) U=1.03V |
- | Temperature range: -40°C to +110°C |
| #B30 | (#B40) | - | - | - | - |
| #B31 | (#B41) | Signal fuel tank pressure sensor |
U=2.5 V at 1kPa negative pressure U=3.3 V at atmospheric pressure (0kPa overpressure) U=4.1 V at 1kPa overpressure |
- | - |
| #B32 | (#B42) | Signal A/C request |
U = Ubat on request, otherwise U = Ulow | - | - |
| #B33 | (#B43) | Signal cruise control on / off |
See terminal #B47 | - | - |
| #B34 | (#B44) | Signal cruise control SET- |
See terminal #B47 | - | - |
| #B35 | (#B45) | - | - | - | - |
| #B36 | (#B46) | - | - | - | - |
| #B37 | (#B47) | Signal ignition on signal, +15 supply |
U = Ubat | - | - |
| #B38 | (#B48) | System relay Control signal |
U = Ulow | U = Ulow | Relay activated: U = Ulow Relay not activated: U = Ubat System relay runs on (2-15 min) |
| #B39 | (#B49) | Gas (CNG or LPG) operation system relay, control signal | U = Ubat | - | The system relay is supplied with voltage from fuse 11C/12:2 |
| #B40 | (#B50) | Control signal EVAP canister shut-off valve |
U=3.82V | - | - |
| #B41 | (#B51) | Control signal Electronic throttle system (ETS) warning lamp |
U = Ulow | U = Ubat (not activated) U = Ulow (activated) |
- |
| #B42 | (#B52) | - | - | - | - |
| #B43 | (#B53) | - | - | - | - |
| #B44 | (#B54) | Control signal A/C activation |
U = Ubat (not activated) U = Ulow (activated) |
- | - |
| #B45 | (#B55) | Control signal fuel pump (FP) activation |
- | - | - |
| #B46 | (#B56) | Control signal malfunction indicator lamp (MIL) |
U = Ulow | U = Ubat (not activated) U = Ulow (activated) |
- |
| #B47 | (#B57) | Power supply cruise control |
U = Ubat (not activated) U = pulse train Utop = Ubat t = 20 ms thigh = 0.5 ms |
- | - |
| #B48 | (#B58) | Control signal engine start inhibiting |
U = Ulow (activated) U = Uhigh (not activated) |
- | In certain markets, the engine can only be started with the clutch pedal depressed (U = Ulow) |
| #B49 | (#B59) | - | - | - | - |
| #B50 | (#B60) | Fuel rail, control signal | - | - | PWM signal, normal range of control 16.7-83.3% |