Signal description
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-#B10 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) | - | - | - | - |
| #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= 2.01 V (+20 C) U=2.62 V (+30 C) U=3.21 V |
- |
| #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 U=Ulow |
- |
| #A12 | (#A12) | - | - | - | - |
| #A13 | (#A13) | - | - | - | - |
| #A14 | (#A14) | Control signal injector 5 |
U=Ubat | t= 2-3ms | t increases with engine speed (RPM) and load |
| #A15 | (#A15) | Control signal injector 3 |
U=Ubat | tlow=2-3 ms | t increases with engine speed (RPM) and load |
| #A16 | (#A16) | Control signal injector 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=0.9 V (at approximately 20 C) | - | U increases with increased pressure in the system |
| #A22 | (#A22) | Mass air flow (MAF) sensor signal | U=0.58 V | U=1.33 V Unloaded, engine at operating temperature |
U increases with increasing air mass |
| #A23 | (#A23) | Signal manifold absolute pressure (MAP) sensor |
U= 1.64 V atmospheric pressure at sea level |
- | U increases with increasing pressure in the intake manifold |
| #A24 | (#A24) | Signal (+) front heated oxygen sensor (HO2S) signal (+) |
- | λ=0.95 V>700 mV λ=1.10 V<200 mV |
- |
| #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 4 |
U=Ubat | tlow=2-3 ms | t increases with engine speed (RPM) and load |
| #A34 | (#A34) | Control signal injector 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 (brake) 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 (+) Engine coolant temperature (ECT) sensor |
- | (+20 C) U=3.1 V (+30 C) U=2.6 V (+80 C) U=0.9 V (+100 C) U=0.5 V |
- |
| #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 (+) camshaft position (CMP) sensor |
- | - | - |
| #A48 | (#A48) | Signal (+) flywheel sensor |
U=2.5 V | U=sine wave voltage Utop=3.5 V U offset=2.5 V |
- |
| #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 3 | Ulow | - | - |
| #A54 | (#A54) | Power ground 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, PWM signal |
Utop=12 V t=4ms 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) | - | - | - | - |
| #A60 | (#A60) | Signal ground Mass air flow (MAF) sensor |
U=Ulow | - | - |
| #A61 | (#B1) | Signal ground intake temperature Engine coolant temperature (ECT) sensor rear heated oxygen sensor (HO2S) |
U=Ulow | - | - |
| #A62 | (#B2) | Power ground 1 | U=Ulow | - | - |
| #A63 | (#B3) | - | - | - | - |
| #A64 | (#B4) | Signal (-) knock sensor (KS) |
- | - | - |
| #A65 | (#B5) | Signal ground camshaft position (CMP) sensor |
U=Ulow | - | - |
| #A66 | (#B6) | Signal ground flywheel sensor |
U=Ulow | - | - |
| #A67 | (#B7) | - | - | - | - |
| #A68 | (#B8) | - | - | - | - |
| #A69 | (#B9) | Control signal preheating front 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 | Idling speed | Other |
| #B1 | (#B11) | Communication cable control modules (CAN L) |
- | - | Between the engine control module (ECM) and the CAN driver module |
| #B2 | (#B12) | - | - | - | |
| #B3 | (#B13) | - | - | - | - |
| #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) | Engine coolant level switch | 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 V (unaffected) U=2.2 volt (fully depressed, 100 mm) |
- | Varies depending on the position of the clutch pedal |
| #B16 | (#B26) | Signal brake sensor |
U=3.1 V (unaffected) U=2.6 V (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 V (idle) U=4.4 V (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) | Output signal (+) engine speed |
U=Ulow | U=quadratic wave voltage Utop=Ubat |
frequency increases with engine speed (RPM) |
| #B22 | (#B32) | Diagnostic lead C-link | U=90% of Ubat | If a generic fault-tracing instrument is connected to the data link connector (DLC), other values apply |
- |
| #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 (brake) 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 |
(0C) U=2.34V (+10C) U=1.82 V (+20C) U=1.38 V (+25C) U=1.19 V (+30C) U=1.03 V |
- | Temperature range: -40C to +110C |
| #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) | Control signal System relay |
U=Ubat | - | The system relay runs on (2-15 mins) |
| #B39 | (#B49) | - | - | - | - |
| #B40 | (#B50) | Control signal EVAP canister shut-off valve |
U=3.82 V | - | - |
| #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) | - | - | - | - |