Signal Specification
General
All values given below are between the terminals stated in column 1 (and breakout box terminal in the terminal) and terminal #B1 (#C1) unless otherwise indicated in column 6 (Miscellaneous).
Control module terminals:
- #A1-#A60 correspond to adapter connector A (breakout box #A1-#A60)
- #A61-#A96 correspond to adapter connector B (breakout box #B1-#B36)
- #B1-#B58 correspond to adapter connector C (breakout box #C1-#C58).
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| U= | DC voltage in volts (V) | Ulow = | Voltage approximately 0 V |
| Ubat = | Battery voltage (V) |
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Engine idling | Other |
|---|---|---|---|---|---|
| #A1 | #A1 | - | - | - | - |
| #A2 | #A2 | - | - | - | - |
| #A3 | #A3 | Mass air flow (MAF), signal ground, intake air temperature (IAT) sensor | U=Ulow | U=Ulow | - |
| #A4 | #A4 | Manifold absolute pressure (MAP) sensor, signal ground | U=Ulow | U=Ulow | - |
| #A5 | #A5 | Fuel pressure sensor, signal ground | U=Ulow | U=Ulow | - |
| #A6 | #A6 | - | - | - | - |
| #A7 | #A7 | - | - | - | - |
| #A8 | #A8 | - | - | - | - |
| #A9 | #A9 | - | - | - | - |
| #A10 | #A10 | - | - | - | - |
| #A11 | #A11 | Rear and center heated oxygen sensor (HO2S), signal (-) | - | - | Center heated oxygen sensor (HO2S): certain markets only. Not measured. |
| #A12 | #A12 | Misfire signal | - | - | Pulse width modulation (PWM) signal |
| #A13 | #A13 | Fuel pressure sensor, power supply 5 V | U =5 V | - | - |
| #A14 | #A14 | - | - | - | - |
| #A15 | #A15 | Throttle position (TP) sensor, power supply 5 V | U =5 V | - | - |
| #A16 | #A16 | Manifold absolute pressure (MAP) sensor, power supply 5V | U =5 V | - | - |
| #A17 | #A17 | Intake camshaft position (CMP) sensor, power supply 5 V | U =5 V | - | - |
| #A18 | #A18 | - | - | - | - |
| #A19 | #A19 | Intake camshaft position (CMP) sensor, signal ground | U=Ulow | U=Ulow | - |
| #A20 | #A20 | Knock sensor (KS), signal (-) | U=Ulow | - | - |
| #A21 | #A21 | Engine speed (RPM) sensor, signal (-) | U=2.5 V | U = sine wave voltage Utop =5 V Uoffset = 2.5 V |
Measure to terminal #A62 (#A62). The voltage and the frequency increase with engine speed |
| #A22 | #A22 | Engine coolant temperature (ECT) sensor, signal ground | U=Ulow | U=Ulow | - |
| #A23 | #A23 | Mass air flow (MAF) sensor, signal ground | U=Ulow | U=Ulow | - |
| #A24 | #A24 | Throttle position (TP), signal ground | U=Ulow | U=Ulow | - |
| #A25 | #A25 | - | - | - | - |
| #A26 | #A26 | - | - | - | - |
| #A27 | #A27 | - | - | - | - |
| #A28 | #A28 | - | - | - | - |
| #A29 | #A29 | - | - | - | - |
| #A30 | #A30 | - | - | - | - |
| #A31 | #A31 | - | - | - | - |
| #A32 | #A32 | - | - | - | - |
| #A33 | #A33 | - | - | - | - |
| #A34 | #A34 | Ignition coil cyl 4, control signal | U=Ulow | - | The frequency increases with engine speed (RPM) |
| #A35 | #A35 | Ignition coil cyl 5, control signal | U=Ulow | - | The frequency increases with engine speed (RPM) |
| #A36 | #A36 | - | - | - | - |
| #A37 | #A37 | - | - | - | - |
| #A38 | #A38 | - | - | - | - |
| #A39 | #A39 | Exhaust camshaft position (CMP) sensor, power supply 5V | U=5 V | - | - |
| #A40 | #A40 | - | - | - | - |
| #A41 | #A41 | - | - | - | - |
| #A42 | #A42 | - | - | - | - |
| #A43 | #A43 | Exhaust camshaft position (CMP) sensor, signal ground | U=Ulow | U=Ulow | - |
| #A44 | #A44 | - | - | - | - |
| #A45 | #A45 | - | - | - | - |
| #A46 | #A46 | Knock sensor (KS), signal (+) | U=Ulow | - | - |
| #A47 | #A47 | Front heated oxygen sensor (HO2S), signal (+) | - | - | Not measured. |
| #A48 | #A48 | Front heated oxygen sensor (HO2S), signal (-) | - | - | Not measured. |
| #A49 | #A49 | Rear heated oxygen sensor (HO2S), preheating, control signal | - | Utop =12 V, pulse ratio 30-60% | Pulsed 12 V signal. |
| #A50 | #A50 | Center heated oxygen sensor (HO2S), preheating, control signal | - | Utop =12 V, pulse ratio 30-60% | Pulsed 12 V signal. Certain markets only. |
| #A51 | #A51 | - | - | - | - |
| #A52 | #A52 | - | - | - | - |
| #A53 | #A53 | Evaporative emission system (EVAP) valve, control signal | U = Ubat | - | Pulse width modulation (PWM) signal during opening (control) of the evaporative emission system (EVAP) valve. % duty varies depending on control. |
| #A54 | #A54 | - | - | - | - |
| #A55 | #A55 | - | - | - | - |
| #A56 | #A56 | - | - | - | - |
| #A57 | #A57 | - | - | - | - |
| #A58 | #A58 | Ignition coil cyl 1, control signal | U=Ulow | - | The frequency increases with engine speed (RPM) |
| #A59 | #A59 | Ignition coil cyl 2, control signal | U=Ulow | - | The frequency increases with engine speed (RPM) |
| #A60 | #A60 | Ignition coil cyl 3, control signal | U=Ulow | - | The frequency increases with engine speed (RPM) |
| #A61 | #B1 | - | - | - | - |
| #A62 | #B2 | Engine speed (RPM) sensor, signal (+) | U=2.5 V | U=sine wave voltage Utop =5 V Uoffset =2.5V | Measured to terminal #A21 (#A21). The frequency increases with engine speed |
| #A63 | #B3 | Intake camshaft position (CMP) sensor, signal | U=5 V | U = Pulsed signal Utop = 5 V Uoffset = 2.5V | The frequency varies according to engine speed (RPM) |
| #A64 | #B4 | Exhaust camshaft position (CMP) sensor, signal | U=5 V | U = Pulsed signal Utop = 5 V Uoffset = 2.5V | The frequency varies according to engine speed (RPM) |
| #A65 | #B5 | - | - | - | - |
| #A66 | #B6 | - | - | - | - |
| #A67 | #B7 | Engine coolant temperature (ECT) sensor, signal | (+30°C) U=1.22 V (+80°C) U=0.29 V (+100°C) U=0.17 V | (+30°C) U=1.22 V (+80°C) U=0.29 V (+100°C) U=0.17 V | U drops with increased engine coolant temperature. |
| #A68 | #B8 | Rear heated oxygen sensor (HO2S), signal (+) | - | - | Not measured. |
| #A69 | #B9 | Manifold absolute pressure (MAP) sensor, signal | U≈2 V | U<≈2 V | U increases with higher air pressure |
| #A70 | #B10 | Mass air flow (MAF) sensor, signal | U=1 V | U≈1.7 V | U increases with increasing air mass |
| #A71 | #B11 | Fuel pressure sensor, signal fuel temperature | U≈ 0.5 V-4.5 V | U≈ 0.5 V-4.5 V | U drops with increased fuel temperature. The fuel temperature sensor is integrated in the fuel pressure sensor. |
| #A72 | #B12 | Throttle position (TP) sensor circuit 2, signal | U ≈ 0.4 - 4.5 V | U ≈ 0.4 - 4.5 V | The voltage varies depending on the position of the throttle. U decreases with increasing throttle opening. |
| #A73 | #B13 | - | - | - | - |
| #A74 | #B14 | Throttle unit motor, control signal (-) | - | PWM signal Utop =Ubat Pulse ratio 0-100%. The polarity of the control signal switches when the damper motor is to be deployed in the opposite direction. | The damper motor is controlled using a pulse width modulation (PWM) signal from the integrated power stage in the engine control module (ECM) measured to terminal #A75 (#B15) |
| #A75 | #B15 | Throttle unit motor, control signal (+) | - | PWM signal Utop =Ubat Pulse ratio 0-100%. The polarity of the control signal switches when the damper motor is to be deployed in the opposite direction. | The damper motor is controlled using a pulse width modulation (PWM) signal from the integrated power stage in the engine control module (ECM) measured to terminal #A74 (#B14) |
| #A76 | #B16 | Front heated oxygen sensor (HO2S), preheating, control signal | - | Utop =12 V, pulse ratio 30-60% | Pulsed 12 V signal |
| #A77 | #B17 | - | - | - | - |
| #A78 | #B18 | Reset valve camshaft intake (VVT), control signal | PWM-signal Utop =Ubat f=250 Hz (±12.5 Hz) | % duty varies depending on control. | - |
| #A79 | #B19 | - | - | - | - |
| #A80 | #B20 | Injector no. 5, control signal | U = Ubat | t=2-3 ms | t increases with engine speed (RPM) and load |
| #A81 | #B21 | Injector no. 4, control signal | U = Ubat | t=2-3 ms | t increases with engine speed (RPM) and load |
| #A82 | #B22 | Injector no. 3, control signal | U = Ubat | t=2-3 ms | t increases with engine speed (RPM) and load |
| #A83 | #B23 | Injector no. 2, control signal | U = Ubat | t=2-3 ms | t increases with engine speed (RPM) and load |
| #A84 | #B24 | Injector no. 1, control signal | U = Ubat | t=2-3 ms | t increases with engine speed (RPM) and load |
| #A85 | #B25 | - | - | - | - |
| #A86 | #B26 | - | - | - | - |
| #A87 | #B27 | - | - | - | - |
| #A88 | #B28 | LIN A (Local Interconnect Network), Alternator Control Module (ACM), Premair sensor. | - | - | Alternator Control Module (ACM): MY 2005- only. Premair sensor: MY 2006- and certain markets only. |
| #A89 | #B29 | - | - | - | - |
| #A90 | #B30 | - | - | - | - |
| #A91 | #B31 | Oil pressure sensor | - | - | Supplied with Ubat from the engine control module (ECM). Closed switch (oil pressure): Ulow . Switch open-circuit (no/low oil pressure):Ubat . |
| #A92 | #B32 | - | - | - | - |
| #A93 | #B33 | Mass air flow (MAF), signal, intake air temperature (IAT) sensor | (+20°C) U=3.50 V (+30°C) U=3.00 V (+40°C) U=2.50 V | (+20°C) U=3.50 V (+30°C) U=3.00 V (+40°C) U=2.50 V | The intake air temperature (IAT) sensor is integrated in the mass air flow (MAF) sensor. |
| #A94 | #B34 | Fuel pressure sensor, signal fuel pressure | 480 +/- 5 kPa (absolute pressure) U = 1.8 - 2 V | The voltage increases with higher fuel pressure. | |
| #A95 | #B35 | Center heated oxygen sensor (HO2S), signal (+) | - | - | Not measured. Certain markets only. |
| #A96 | #B36 | Throttle position (TP) sensor circuit 1, signal | U ≈ 0.4 - 4.5 V | U ≈ 0.4 - 4.5 V | U varies depending on the position of the throttle. U increases with increased throttle opening. |
CONNECTOR B
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Engine idling | Other |
|---|---|---|---|---|---|
| #B1 | #C1 | Power ground 1 | Ulow | - | Ground terminal, connected to the chassis at the right-hand suspension turret |
| #B2 | #C2 | Power ground 2 | Ulow | - | Ground terminal, connected to the chassis at the right-hand suspension turret |
| #B3 | #C3 | Power ground 3 | Ulow | - | Ground terminal, connected to the chassis at the right-hand suspension turret |
| #B4 | #C4 | Power supply from the system relay | Ubat | - | Power supply 12 V engine control module (ECM) from the system relay. |
| #B5 | #C5 | - | - | - | - |
| #B6 | #C6 | Power supply from the system relay | Ubat | - | Power supply 12V engine control module (ECM) from the system relay. |
| #B7 | #C7 | Engine cooling fan control module, control signal | - | - | PWM signal to the engine cooling fan control module |
| #B8 | #C8 | Starter relay, control signal (-) | - | - | - |
| #B9 | #C9 | - | - | - | - |
| #B10 | #C10 | A/C relay, control signal | - | - | Air conditioning (A/C) relay activated: U=Ulow Air conditioning relay not activated: U = Ubat |
| #B11 | #C11 | - | - | - | - |
| #B12 | #C12 | - | - | - | - |
| #B13 | #C13 | - | - | - | - |
| #B14 | #C14 | - | - | - | - |
| #B15 | #C15 | Transmission control module, signal gear position | With engaged: U=Ulow With disengaged: U=Ubat | - | Grounded in the Transmission Control Module at. |
| #B16 | #C16 | System relay, control signal | - | U=Ulow | Relay activated: U=Ulow Relay not activated: U=Ubat Note that the relay can be closed after ignition off due to time for "after run". |
| #B17 | #C17 | Start, signal 50-supply | - | - | Signal from the ignition switch. The cable is shared with the central electronic module (CEM). When the ignition is in position for start: U=Ulow |
| #B18 | #C18 | - | - | - | - |
| #B19 | #C19 | - | - | - | - |
| #B20 | #C20 | Fuel pump control module, control signal | - | PWM signal pulse ratio 50% (+/-10%) engine at operating temperature | PWM signal transmitted by the engine control module (ECM) to the fuel pump control module. The pulse ratio varies with the requested fuel pressure. |
| #B21 | #C21 | - | - | - | - |
| #B22 | #C22 | - | - | - | - |
| #B23 | #C23 | Leak diagnostic unit, preheating, control signal | - | - | Heating element activated: U=Ulow Heating element not activated: U=Ubat Only certain markets. |
| #B24 | #C24 | - | - | - | - |
| #B25 | #C25 | - | - | - | - |
| #B26 | #C26 | Accelerator pedal (AP) position sensor, PWM signal | PWM signal Utop =Ubat t=5 ms pulse ratio≈ 6-90% | PWM signal Utop =Ubat t=5 ms pulse ratio≈ 6-14% | The PWM signal from the accelerator pedal (AP) position sensor to the engine control module (ECM). The pulse ratio increases as the accelerator pedal (AP) is depressed. |
| #B27 | #C27 | - | - | - | - |
| #B28 | #C28 | Air conditioning (A/C) low pressure switch, signal | - | - | High air conditioning (A/C) pressure: U=Ubat Low air conditioning A/C pressure: U=Ulow |
| #B29 | #C29 | - | - | - | - |
| #B30 | #C30 | Power supply (Wake up, 15-supply) | 12V | 12V | - |
| #B31 | #C31 | A/C high pressure sensor, power supply | - | - | - |
| #B32 | #C32 | - | - | - | - |
| #B33 | #C33 | Leak diagnostic unit, pump motor, power supply | Pump motor running: U=Ulow Pump motor not running: U=Ubat | - | Certain markets only. |
| #B34 | #C34 | - | - | - | - |
| #B35 | #C35 | - | - | - | - |
| #B36 | #C36 | - | - | - | - |
| #B37 | #C37 | - | - | - | - |
| #B38 | #C38 | - | - | - | - |
| #B39 | #C39 | - | - | - | - |
| #B40 | #C40 | - | - | - | - |
| #B41 | #C41 | Stop lamp switch, signal | When the brake pedal is depressed: U=Ubat When the brake pedal is unaffected U=Ulow | - | Signal via the central electronic module (CEM). |
| #B42 | #C42 | - | - | - | - |
| #B43 | #C43 | - | - | - | - |
| #B44 | #C44 | HS-CAN L, transmission control module (TCM) | - | - | - |
| #B45 | #C45 | HS-CAN L | - | - | Connected to #B58 (#C58) (HS-CAN H) via terminating resistor. |
| #B46 | #C46 | Leak diagnostic unit, valve, control signal | - | - | Valve activated: U=Ulow Valve not activated: U=Ubat Only certain markets. |
| #B47 | #C47 | A/C high pressure sensor, signal ground | U=Ulow | - | - |
| #B48 | #C48 | - | - | - | - |
| #B49 | #C49 | - | - | - | - |
| #B50 | #C50 | - | - | - | - |
| #B51 | #C51 | A/C high pressure sensor, signal | - | - | The voltage increases with increased pressure |
| #B52 | #C52 | - | - | - | - |
| #B53 | #C53 | - | - | - | - |
| #B54 | #C54 | Power supply, engine control module (ECM) (terminal 30) | - | - | - |
| #B55 | #C55 | - | - | - | - |
| #B56 | #C56 | - | - | ||
| #B57 | #C57 | HS-CAN H, transmission control module (TCM) | - | - | - |
| #B58 | #C58 | HS-CAN H | - | - | Connected to #B45 (#C45) (HS-CAN L) via terminating resistor. |