Signal specification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
General
All values listed below should be measured between the respective terminal in column 1 (control module terminal) and terminal #B3 unless stated otherwise in column 6 (Other). Control module terminals #A1-#A70 correspond to terminals #A1-#B10 on the breakout box, terminals #B1-#B50 correspond to #B11 - #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, (#B1). Example: #A61 (#B1).
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | % duty = | Duty cycle (pulse ratio) as a percentage (%) |
| t = | Time in milliseconds (ms) | I = | Current in amperes (A) |
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Engine idling | Other |
| #A1 | #A1 | Throttle unit signal, potentiometer 1 (circuit 1) | U ≈ 0.4-4 V | - | The voltage varies depending on the position of the throttle. U increases with throttle opening. |
| #A2 | #A2 | - | - | - | - |
| #A3 | #A3 | - | - | - | - |
| #A4 | #A4 | Engine coolant temperature (ECT) sensor signal | - | (+30°C) U=1.22 V (+80°C) U = 0.29 V (+100°C) U = 0.17 V |
- |
| #A5 | #A5 | Signal intake air temperature (IAT) sensor | - | (+20°C) U = 3.50 V (+30°C) U = 3.00 V (+40°C) U = 2.50 V |
Turbocharged engines: Intake air temperature (IAT) sensor is integrated in the boost pressure sensor. Naturally aspirated engines: Intake air temperature (IAT) sensor is integrated in the mass air flow (MAF) sensor |
| #A6 | #A6 | Control signal, preheating, bank 1, rear heated oxygen sensor (HO2S) | U = Ubat | Preheating off: U = Ubat Preheating on U=Ulow |
- |
| #A7 | #A7 | Engine cooling fan (FC) control signal | Pulse width modulation (PWM) signal Uhigh at least 70% of Ubat Ulow = 1.2 V f = 100 Hz Pulse ratio = 10-95% |
- | - |
| #A8 | #A8 | Control signal, preheating, bank 2, rear heated oxygen sensor (HO2S) | U = Ubat | Preheating off: U = Ubat Preheating on U=Ulow |
- |
| #A9 | #A9 | Control signal, canister purge (CP) valve | U = Ubat | - | PWM signal during activation of the canister purge (CP) valve |
| #A10 | #A10 | Signal (+) rear heated oxygen sensor (HO2S), bank 2 | - | - | - |
| #A11 | #A11 | Signal (-) rear heated oxygen sensor (HO2S), bank 2 | - | - | - |
| #A12 | #A12 | - | - | - | - |
| #A13 | #A13 | Control signal, intake camshaft reset valve | - | PWM signal Utop
=Ubat f = 250 Hz (+-12.5 Hz) Pulse ratio 20-95% |
The pulse ratio governs control of the camshaft |
| #A14 | #A14 | Injector no. 6 control signal | U = Ubat | t= 2-3 ms | t increases with engine speed (RPM) and load |
| #A15 | #A15 | Injector no. 2 control signal | U = Ubat | t= 2-3 ms | t increases with engine speed (RPM) and load |
| #A16 | #A16 | Injector no. 1 control signal | U = Ubat | t= 2-3 ms | t increases with engine speed (RPM) and load |
| #A17 | #A17 | Power supply | U = Ubat | - | Supplied via the system relay |
| #A18 | #A18 | Control signal, preheating, bank 1, front heated oxygen sensor (HO2S) |
U = Ubat | Preheating off: U = Ubat Preheating on: U=Ulow |
- |
| #A19 | #A19 | Signal ground, throttle unit, potentiometers 1 and 2 | U=Ulow | - | - |
| #A20 | #A20 | Throttle unit signal, potentiometer 2 (circuit 2) | U ≈ 4 -0.4 V | - | The voltage varies depending on the position of the throttle. U decreases with increasing throttle opening |
| #A21 | #A21 | Exhaust camshaft reset valve control signal (turbocharged engines only) | - | Pulse width modulation (PWM) signal Utop =Ubat f=250 Hz (+-12.5 Hz) Pulse ratio 20-95% |
The pulse ratio governs control of the camshaft |
| #A22 | #A22 | Mass air flow (MAF) sensor signal | U = 1 V | U = 1.7 V | U increases with increasing air mass |
| #A23 | #A23 | Boost pressure sensor signal (turbocharged engines only) | U = 1.96 V | - | U increases with increasing boost pressure |
| #A24 | #A24 | Front heated oxygen sensor (HO2S), bank 1, pump current | - | - | Pulsed current supply, not measured |
| #A25 | #A25 | Front heated oxygen sensor (HO2S), bank 2, pump current | - | - | Pulsed current supply, not measured |
| #A26 | #A26 | Oil pressure switch signal | U=Ulow | U = Ubat | - |
| #A27 | #A27 | Signal camshaft position (CMP) sensor 2 exhaust camshaft (Turbocharged engines only) | U =5 V | U = Pulsed signal Utop = 5 V Uoffset = 2.5 V |
The frequency varies according to engine speed (RPM) |
| #A28 | #A28 | Front heated oxygen sensor (HO2S), bank 1, calibration current | - | - | Not measured |
| #A29 | #A29 | Power supply, 5 V camshaft position (CMP) sensor | U =5 V | - | - |
| #A30 | #A30 | Ignition coil no. 5 control signal | U=Ulow | U=2.5 V thigh =2 ms |
The frequency varies according to engine speed (RPM) |
| #A31 | #A31 | Ignition coil no. 1 control signal | U=Ulow | U=2.5 V thigh =2.5 ms |
The frequency varies according to engine speed (RPM) |
| #A32 | #A32 | Injector no. 4 control signal | U = Ubat | tlow =2-3 ms | t increases with engine speed (RPM) and load |
| #A33 | #A33 | Injector no. 3 control signal | U = Ubat | tlow =2-3 ms | t increases with engine speed (RPM) and load |
| #A34 | #A34 | Injector no. 5 control signal | U = Ubat | tlow =2-3 ms | t increases with engine speed (RPM) and load |
| #A35 | #A35 | Control signal (+) damper motor for the throttle unit | - | PWM signal Utop =Ubat |
The damper motor is controlled from the integrated power stage in the engine control module (ECM) measured to terminal #36 (breakout box terminal #A36) |
| #A36 | #A36 | Control signal (-) damper motor for the throttle unit | - | PWM signal Utop =Ubat |
The damper motor is controlled from the integrated power stage in the engine control module (ECM) measured to terminal #35 (breakout box terminal #A35) |
| #A37 | #A37 | - | - | - | - |
| #A38 | #A38 | Control signal for the turbocharger (TC) control valve (turbocharged engines only) | U = Ubat | - | During turbocharger (TC) control: PWM signal f = 32 Hz |
| #A39 | #A39 | Power supply 5 V, boost pressure sensor, A/C pressure sensor, mass air flow (MAF) sensor | U =5 V | - | - |
| #A40 | #A40 | - | - | - | - |
| #A41 | #A41 | Signal (+), front heated oxygen sensor (HO2S) bank 1 |
- | - | Pulsed current signal, not measured |
| #A42 | #A42 | Signal (-), front heated oxygen sensor (HO2S) bank 1 |
- | - | Pulsed current signal, not measured |
| #A43 | #A43 | Signal (+), front heated oxygen sensor (HO2S) bank 2 |
- | - | Pulsed current signal, not measured |
| #A44 | #A44 | Signal (-), front heated oxygen sensor (HO2S) bank 2 |
- | - | Pulsed current signal, not measured |
| #A45 | #A45 | Signal (+), rear knock sensor (KS) | U=Ulow | - | - |
| #A46 | #A46 | Signal (+) front knock sensor (KS) | U=Ulow | - | - |
| #A47 | #A47 | Signal camshaft position (CMP) sensor 1, intake camshaft | U =5 V | U = Pulsed signal Utop =5 V Uoffset = 2.5 V |
The frequency varies according to engine speed (RPM) |
| #A48 | #A48 | Signal (+), flywheel sensor | U=2.5 V | U= sine wave voltage Utop =5 V Uoffset = 2.5 V |
Measured to terminal #A66 (terminal #B6 on the breakout box) The frequency increases with engine speed (RPM) |
| #A49 | #A49 | Ignition coil no. 4 control signal | U=Ulow | U=2.5 V thigh =2 ms |
The frequency varies according to engine speed (RPM) |
| #A50 | #A50 | Ignition coil no. 2 control signal | U=Ulow | U=2.5 V thigh =2 ms |
The frequency varies according to engine speed (RPM) |
| #A51 | #A51 | Ignition coil no. 6 control signal | U=Ulow | U=2.5 V thigh =2 ms |
The frequency varies according to engine speed (RPM) |
| #A52 | #A52 | Ignition coil no. 3 control signal | U=Ulow | U=2.5 V thigh =2 ms |
The frequency varies according to engine speed (RPM) |
| #A53 | #A53 | Power ground 3 | Ulow | - | Ground terminal connected to the chassis |
| #A54 | #A54 | Power ground 2 | Ulow | - | Ground terminal connected to the chassis |
| #A55 | #A55 | - | - | - | - |
| #A56 | #A56 | - | - | - | - |
| #A57 | #A57 | - | - | - | - |
| #A58 | #A58 | Signal ground, mass air flow (MAF) sensor | U=Ulow | - | - |
| #A59 | #A59 | Power supply 5 V throttle unit, potentiometers 1 and 2 | U =5 V | - | - |
| #A60 | #A60 | Signal ground Air conditioning (A/C) pressure sensor, boost pressure sensor, engine coolant temperature (ECT) sensor |
U=Ulow | - | - |
| #A61 | #B1 | Signal (+), rear heated oxygen sensor (HO2S) bank 1 |
U≈0.50 V | Above 0.6 V or below 0.3 V | - |
| #A62 | #B2 | Signal (-) rear heated oxygen sensor (HO2S) bank 1 |
U=Ulow | U=Ulow | - |
| #A63 | #B3 | Signal ground | U=Ulow | - | Ground terminal connected to the chassis |
| #A64 | #B4 | Signal (-) front knock sensor (KS) | U=Ulow | U=Ulow | - |
| #A65 | #B5 | Camshaft position (CMP) sensor signal ground | U=Ulow | - | - |
| #A66 | #B6 | Signal (-) flywheel sensor | U=2.5 V | U = sine wave voltage Utop =5 V Uoffset = 2.5 V |
Measured to terminal #A48 (terminal #A48 on the breakout box) The frequency increases with engine speed (RPM) |
| #A67 | #B7 | Signal (-) rear knock sensor (KS) | U=Ulow | U=Ulow | - |
| #A68 | #B8 | Air conditioning (A/C) pressure sensor signal | U = 0.9 V (at 20°C) | - | U increases with pressure in the air conditioning (A/C) system |
| #A69 | #B9 | Front heated oxygen sensor (HO2S), bank 2, calibration current | - | - | Not measured |
| #A70 | #B10 | Control signal, preheating, bank 2, front heated oxygen sensor (HO2S) | U = Ubat | Preheating off: U = Ubat Preheating on: U=Ulow |
- |
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Engine idling | Other |
| #B1 | #B11 | Control modules communication cable (CAN L) | - | - | - |
| #B2 | #B12 | - | - | - | - |
| #B3 | #B13 | - | - | - | - |
| #B4 | #B14 | Signal ground clutch pedal position sensor, outside temperature sensor |
U=Ulow | - | - |
| #B5 | #B15 | Signal ground, accelerator pedal (AP) position sensor | U=Ulow | - | - |
| #B6 | #B16 | - | - | - | - |
| #B7 | #B17 | Control signal, leak diagnostic unit, pump | Pump motor running: U=Ulow Pump motor not running: U = Ubat | - | - |
| #B8 | #B18 | Signal, coolant level sensor | U=Ulow | Low engine coolant level: U = Ubat Normal engine coolant level: U=Ulow |
- |
| #B9 | #B19 | Power supply, 5 V accelerator pedal (AP) position sensor | U =5 V | - | - |
| #B10 | #B20 | - | - | - | - |
| #B11 | #B21 | 30-supply (Power supply from the battery) | U = Ubat | U = Ubat | Ignition off: U = Ubat |
| #B12 | #B22 | - | - | - | - |
| #B13 | #B23 | Control module communication cable (CAN H) | - | - | - |
| #B14 | #B24 | - | - | - | - |
| #B15 | #B25 | Clutch pedal sensor signal | Unaffected: U = 3.3 V Fully depressed: 100 mm U = 2.2 V |
- | U varies depending on the position of the clutch pedal |
| #B16 | #B26 | - | - | - | - |
| #B17 | #B27 | Signal, accelerator pedal (AP) position sensor | Unaffected: U≈0.4 V Fully depressed accelerator pedal (AP): U≈4 V |
- | U varies depending on the position of the accelerator pedal (AP) |
| #B18 | #B28 | - | - | - | - |
| #B19 | #B29 | - | - | - | - |
| #B20 | #B30 | - | - | - | - |
| #B21 | #B31 | - | - | - | - |
| #B22 | #B32 | Diagnostic lead C-link | U=90% of Ubat | - | Other values apply if a generic fault-tracing instrument is connected to the data link connector (DLC) |
| #B23 | #B33 | Signal crank, 50-supply | U=Ulow | U=Ulow | At crank: U = Ubat |
| #B24 | #B34 | - | - | - | - |
| #B25 | #B35 | Signal, accelerator pedal (AP) position sensor | PWM signal Utop = Ubat t= 5 ms pulse ratio = 8-88% |
- | Pulse width modulation (PWM) signal from the accelerator pedal (AP) position sensor to the engine control module (ECM) |
| #B26 | #B36 | Stop lamp switch signal | When the brake pedal is depressed: U = Ubat When the brake pedal is not depressed U=Ulow |
- | - |
| #B27 | #B37 | - | - | - | - |
| #B28 | #B38 | - | - | - | - |
| #B29 | #B39 | Signal, outside temperature sensor | (0°C) U = 2.92 V (+10°C) U = 2.40 V (+20°C) U = 1.90 V (+30°C) U = 1.46 V |
- | Temperature range: -40 to +30°C |
| #B30 | #B40 | - | - | - | - |
| #B31 | #B41 | - | - | - | - |
| #B32 | #B42 | - | - | - | - |
| #B33 | #B43 | - | - | - | - |
| #B34 | #B44 | - | - | - | - |
| #B35 | #B45 | - | - | - | - |
| #B36 | #B46 | - | - | - | - |
| #B37 | #B47 | Signal, ignition on, 15-supply | U = Ubat | U = Ubat | Ignition off: U=Ulow |
| #B38 | #B48 | System relay, control signal | - | U=Ulow | Relay activated: U=Ulow Relay not activated: U = Ubat The system relay runs on (2-5 minutes) |
| #B39 | #B49 | - | - | - | - |
| #B40 | #B50 | Control signal, leak diagnostic unit, valve | - | - | Valve activated: U = Ulow Valve not activated: U = Ubat |
| #B41 | #B51 | - | - | - | - |
| #B42 | #B52 | - | - | - | - |
| #B43 | #B53 | - | - | - | - |
| #B44 | #B54 | Control signal, air conditioning (A/C) relay | - | - | Air conditioning (A/C) relay activated: U=Ulow Air conditioning (A/C) relay not activated: U = Ubat |
| #B45 | #B55 | Fuel pump (FP) activation control signal | - | - | Pulse width modulated (PWM) signal to the central electronic module (CEM) to control the fuel pump (FP) relay |
| #B46 | #B56 | Malfunction indicator lamp (MIL) control signal | U=Ulow | Not activated: U = Ubat Activated: U=Ulow |
- |
| #B47 | #B57 | - | - | - | - |
| #B48 | #B58 | Control signal, engine cooling fan (FC), control modules | - | Not activated: U = Ubat Activated: U=Ulow |
The engine cooling fan (FC) is controlled by the engine control module (ECM) |
| #B49 | #B59 | - | - | - | - |
| #B50 | #B60 | - | - | - | - |