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HOMESERVICE MANUALSVOLVO2017XC60 T6 INSCRIPTIONREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSIGNITION AND CONTROL SYSTEMS - SPECIFICATIONS, ELECTRICAL/ELECTRONICSIGNAL DESCRIPTION, ENGINE CONTROL MODULESIGNAL DESCRIPTION, ENGINE CONTROL MODULE (ECM) [2009-2010, B6304T2 | 2011-2016, B6304T4]SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)
2017 Volvo XC60 T6 Inscription
Signal Specification, Engine Control Module (ECM)
2017 Volvo XC60 T6 InscriptionSECTION Signal Specification, Engine Control Module (ECM)
General
All the values given below apply between the respective terminal (column 1) and power ground (#C2, #C4 or #C6 on the breakout box). If this is not the case, it is indicated within brackets.
NOTE:
Connect the breakout box and check the ground connections before starting to measure.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds (s) |
| PWM = | Pulse-width modulation |
Connector A
Connector A (96-pin) corresponds to terminals #A1 - #B36 on the breakout box.
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Miscellaneous |
| #A1 | #A1 | - | - | - | |
| #A2 | #A2 | - | - | - | |
| #A3 | #A3 | - | - | - | |
| #A4 | #A4 | - | - | - | |
| #A5 | #A5 | - | - | - | |
| #A6 | #A6 | Impulse sensor, signal (-) | U=Ulow | Measured to terminal #A30 (#A30). | |
| #A7 | #A7 | Camshaft sensor intake, ground | U = Ulow | U = Ulow | |
| #A8 | #A8 | Camshaft sensor exhaust, ground | U = Ulow | U = Ulow | |
| #A9 | #A9 | Front heated oxygen sensor (HO2S), bank 1, signal (+) | λ = 1 when current is 0 mA | Measurement range 0 ± 12 mA. Negative current indicates a rich fuel/air mixture. |
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| #A10 | #A10 | Front heated oxygen sensor (HO2S), bank 1, signal (-) | λ = 1 when current is 0 mA | Measurement range 0 ± 12 mA. Negative current indicates a rich fuel/air mixture. |
|
| #A11 | #A11 | Camshaft sensor intake, supply voltage | U = 5 V | U = 5 V | |
| #A12 | #A12 | Camshaft sensor exhaust, supply voltage | U = 5 V | U = 5 V | |
| #A13 | #A13 | Charge pressure sensor (-) | U = 5 V | U = 5 V | |
| #A14 | #A14 | Mass air flow (MAF) sensor, signal ground | U = Ulow | U = Ulow | |
| #A15 | #A15 | - | - | - | |
| #A16 | #A16 | - | - | - | |
| #A17 | #A17 | Electronic throttle module (ETA), ground | U = Ulow | U = Ulow | |
| #A18 | #A18 | Rear heated oxygen sensor (HO2S), bank 1, signal (-). | |||
| #A19 | #A19 | Knock sensor (KS) 1, signal (-) | U=Ulow | ||
| #A20 | #A20 | Knock sensor (KS) 2, signal (-) | U=Ulow | ||
| #A21 | #A21 | Fuel temperature/fuel pressure sensor, ground | U = Ulow | U = Ulow | |
| #A22 | #A22 | Mass air flow (MAF) sensor, signal ground | U = Ulow | U = Ulow | |
| #A23 | #A23 | Manifold absolute pressure (MAP) sensor, ground | U = Ulow | U = Ulow | |
| #A24 | #A24 | Manifold absolute pressure (MAP) sensor, supply voltage | U = 5 V | ||
| #A25 | #A25 | - | - | - | |
| #A26 | #A26 | - | - | - | |
| #A27 | #A27 | - | - | - | |
| #A28 | #A28 | - | - | - | |
| #A29 | #A29 | - | - | - | |
| #A30 | #A30 | Impulse sensor, signal (+) | U=Ulow | U = sinus voltage U≈ 1.7 to 1.9 V |
Measured to terminal #A6 (#A6). The voltage increases with increased engine speed (rpm). |
| #A31 | #A31 | - | - | - | |
| #A32 | #A32 | - | - | - | |
| #A33 | #A33 | Exhaust camshaft position (CMP) sensor, signal | U = 5 V or Ulow | U= pulsed signal Umax. > 4.5 V Umin. < 1 V |
Measure against #A8 (#A8). The frequency varies with engine rpm. Measure with advanced measuring tool. |
| #A34 | #A34 | Intake camshaft position (CMP) sensor, signal | U = 5 V or Ulow | U= pulsed signal Umax. > 4.5 V Umin. < 1 V |
Measure against #A7 (#A7). The frequency varies with engine rpm. Measure with advanced measuring tool. |
| #A35 | #A35 | - | - | - | |
| #A36 | #A36 | - | - | - | |
| #A37 | #A37 | Charge pressure sensor, pressure signal | 0.4V corresponds to approx. 20 kPa 4.65V corresponds to approx. 300 kPa |
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| #A38 | #A38 | - | - | - | |
| #A39 | #A39 | - | - | - | |
| #A40 | #A40 | Rear heated oxygen sensor (HO2S), bank 1, signal (+) | λ = 1 at approx. 700 mV λ > 1 at approx. 200 mV |
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| #A41 | #A41 | - | - | - | |
| #A42 | #A42 | Knock sensor (KS) 1, signal (+) | U = 2.5 V | Measured to terminal #A19 (#A19). | |
| #A43 | #A43 | Knock sensor (KS) 2, signal (+) | U = 2.5 V | Measured to terminal #A20 (#A20). | |
| #A44 | #A44 | - | - | - | |
| #A45 | #A45 | Engine coolant temperature (ECT) sensor, signal (-) | |||
| #A46 | #A46 | Fuel temperature sensor, signal | Measurement range: -40 °C to +130 °C. -40 °C corresponds to approx.13.5Ω 20 °C corresponds to approx. 2500Ω 130 °C corresponds to approx. 85Ω |
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| #A47 | #A47 | Fuel temperature/fuel pressure sensor, supply voltage | U = 5 V | ||
| #A48 | #A48 | Electronic throttle module (ETA), voltage feed | U = 5 V | U = 5 V | |
| #A49 | #A49 | - | - | - | |
| #A50 | #A50 | - | - | - | |
| #A51 | #A51 | - | - | - | |
| #A52 | #A52 | - | - | - | |
| #A53 | #A53 | - | - | - | |
| #A54 | #A54 | - | - | - | |
| #A55 | #A55 | - | - | - | |
| #A56 | #A56 | Ignition coil cyl 4, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #A57 | #A57 | Ignition coil cyl 2, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #A58 | #A58 | Ignition coil cyl 6, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #A59 | #A59 | Ignition coil cyl 3, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #A60 | #A60 | Ignition coil cyl 5, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #B1 | #A61 | Ignition coil cyl 1, control signal | U=Ulow | Utop = 12 V pulse ratio 30% f=240 Hz | Pulse ratio and frequency increases with increased engine speed (rpm) |
| #B2 | #A62 | Misfire signal | Pulse width modulation (PWM) signal, for ignition coil cyl. 1, 4 and 6 | ||
| #B3 | #A63 | Oil level and oil temperature sensor, signal | Pulse width modulation (PWM) signal | ||
| #B4 | #A64 | - | - | - | |
| #B5 | #A65 | Electronic throttle module (ETA), throttle position sensor circuit 1, signal | Unaffected: U≈0.8 V Fully depressed accelerator pedal: U≈4 V |
Voltage varies depending on the position of the throttle. Voltage increases with increased throttle opening. | |
| #B6 | #A66 | Intake air temperature (IAT) sensor signal | (+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. |
| #B7 | #A67 | Electronic throttle module (ETA), throttle position sensor circuit 2, signal | Unaffected: U≈1.7 V Fully depressed accelerator pedal: U≈4.1 V |
Voltage varies depending on the position of the throttle. Voltage increases with increased throttle opening. | |
| #B8 | #A68 | 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. |
| #B9 | #A69 | Manifold absolute pressure (MAP) sensor, signal | U≈3.7 V at 1000 mbar | ||
| #B10 | #A70 | Mass air flow (MAF) sensor, signal | U≈0.6 V | U≈1.4 V | U increases with increasing air mass |
| #B11 | #A71 | Fuel pressure sensor, signal | 0.5V corresponds to approx. 50 kPa 4.5V corresponds to approx. 1000 kPa |
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| #B12 | #A72 | Charge pressure sensor, temperature signal | Measurement range: -40 °C to +130 °C. -40 °C corresponds to approx. 48 kΩ 20 °C corresponds to approx. 2500Ω 130 °C corresponds to approx. 85Ω |
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| #B13 | #A73 | Power supply from system relay | U = Ubat | U = Ubat | |
| #B14 | #A74 | Electronic Throttle Module (ETA) engine, control signal (-) | Idle = -1.5 V Full speed = 2 V |
Pulse width modulation (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 | Electronic Throttle Module (ETA) engine, control signal (+) | Idle = -1.5 V Full speed = 2 V |
Pulse width modulation (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. |
| #B16 | #A76 | Front heated oxygen sensor (HO2S) bank 1 preheating, control signal | Utop = 12 V pulse ratio 30 - 60 % f=8 Hz | Pulsed 12 V-signal. | |
| #B17 | #A77 | - | - | - | |
| #B18 | #A78 | Injector 1, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B19 | #A79 | Injector 5, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B20 | #A80 | Injector 3, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B21 | #A81 | Injector 6, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B22 | #A82 | Injector 2, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B23 | #A83 | Injector 4, control signal | U = Ubat | t = 2-3 ms | t increases with engine speed and load |
| #B24 | #A84 | Evaporative emission system (EVAP) valve, control signal (signal ground) | U = Ubat | Pulse width modulation (PWM) signal during opening (control) of the evaporative emission system (EVAP) valve. The pulse ratio varies with regulating. | |
| #B25 | #A85 | Variable A/C compressor, control signal | Utop = 12 V pulse ratio 30 - 75 % f=400 Hz | Pulsed 12 V-signal. | |
| #B26 | #A86 | Reset valve camshaft intake (VVT), control signal | Pulse width modulation (PWM) signal Utop = Ubat f = 300 Hz Pulse ratio 5% |
The pulse ratio varies during regulation. | |
| #B27 | #A87 | - | - | - | |
| #B28 | #A88 | Rear heated oxygen sensor preheating bank 1, control signal | Utop
= 12 V pulse ratio 30 - 60 % |
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| #B29 | #A89 | - | - | - | |
| #B30 | #A90 | Relief valve | U = Ubat | U = Ubat | |
| #B31 | #A91 | - | - | - | |
| #B32 | #A92 | LIN signal, alternator | |||
| #B33 | #A93 | Exhaust damper B (left), PWM signal | PWM (0-12 V) | PWM (0-12 V) | - |
| #B34 | #A94 | Exhaust damper A (right), PWM signal | PWM (0-12 V) | PWM (0-12 V) | - |
| #B35 | #A95 | Turbocharger (TC) control valve | U = Ubat | U = Ubat | PWM signal during opening (control) of the turbocharger (TC) control valve. % duty varies depending on control. |
| #B36 | #A96 | - | - | - | |
Connector B
Connector B (58-pin) corresponds to terminals #C1 - #58 on the breakout box.
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Miscellaneous |
| #C1 | #B1 | - | - | - | |
| #C2 | #B2 | Power ground | U = Ulow | U = Ulow | Ground terminal connected to chassis. |
| #C3 | #B3 | Power supply from system relay | U = Ubat | U = Ubat | |
| #C4 | #B4 | Power ground | U = Ulow | U = Ulow | Ground terminal connected to chassis. |
| #C5 | #B5 | Power supply from system relay | U = Ubat | U = Ubat | |
| #C6 | #B6 | Power ground | U = Ulow | U = Ulow | Ground terminal connected to chassis. |
| #C7 | #B7 | - | - | - | |
| #C8 | #B8 | Cooling fan control module, control signal | Pulse width modulation (PWM) signal to engine cooling fan (FC) control module | ||
| #C9 | #B9 | Start relay, signal (-) | U = Ubat | U = Ubat | |
| #C10 | #B10 | Air conditioning (A/C) relay, control signal (signal ground) | |||
| #C11 | #B11 | Starter relay, control signal (+) | U = Ubat | U = Ubat | |
| #C12 | #B12 | - | - | - | |
| #C13 | #B13 | Automatic: Transmission control module (TCM), signal gear position. Manual: Clutch pedal switch |
With P/N connected: U = Ulow With P/N disconnected U = Ubat |
Grounded in the transmission control module (TCM) when in P/N. | |
| #C14 | #B14 | Power supply (wake up, 15-feed | U = Ubat | U = Ubat | |
| #C15 | #B15 | Start, signal 50-feed | U = Ubat | U = Ubat | Ignition off: U = Ulow |
| #C16 | #B16 | Supply from B+ | |||
| #C17 | #B17 | Start, signal 50-feed | U = Ubat at crank | The engine control module (ECM) requests engine starting via the central electronic module (CEM). | |
| #C18 | #B18 | - | - | - | |
| #C19 | #B19 | - | - | - | |
| #C20 | #B20 | - | - | - | |
| #C21 | #B21 | Fuel pump (FP) control module (PEM), control signal | Control signal (PWM) from electronic control module (ECM) to fuel pump control module (PEM). Fuel pump control module (PEM) controls the fuel pump in turn. | ||
| #C22 | #B22 | - | - | - | |
| #C23 | #B23 | Leak diagnostic unit, pump | U = Ubat | U = Ubat | Certain markets only. |
| #C24 | #B24 | - | - | - | |
| #C25 | #B25 | - | - | - | |
| #C26 | #B26 | Accelerator pedal (AP) position sensor, PWM signal | PWM signal Utop =Ubat t=5 ms pulse ratio 8 - 88 % | Pulse width modulation (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. |
| #C27 | #B27 | System relay, control signal | U=Ulow | Engine control module (ECM) grounds with ignition on and releases after afterrun. | |
| #C28 | #B28 | - | - | - | |
| #C29 | #B29 | - | - | - | |
| #C30 | #B30 | Brake light switch | |||
| #C31 | #B31 | A/C high pressure sensor, power supply | U = 5 V | ||
| #C32 | #B32 | - | - | - | |
| #C33 | #B33 | - | - | - | |
| #C34 | #B34 | Outside temperature sensor, ground | U=Ulow | ||
| #C35 | #B35 | Outside temperature sensor, Signal | (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 +130 °C. Ref: 1.87 V at 21 °C. |
|
| #C36 | #B36 | - | - | - | |
| #C37 | #B37 | - | - | - | |
| #C38 | #B38 | - | - | - | |
| #C39 | #B39 | - | - | - | |
| #C40 | #B40 | - | - | - | |
| #C41 | #B41 | Communication cable control modules (HS-CAN L) | |||
| #C42 | #B42 | - | - | - | |
| #C43 | #B43 | - | - | - | |
| #C44 | #B44 | - | - | - | |
| #C45 | #B45 | Leak diagnostic unit, preheating, control signal | Heating element activated: U = Ulow Heating element not activated: U = Ubat Certain markets only. |
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| #C46 | #B46 | Leak diagnostic unit valve, control signal | Valve activated: U = Ulow Valve not activated: U = Ubat Certain markets only. |
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| #C47 | #B47 | - | - | - | |
| #C48 | #B48 | - | - | - | |
| #C49 | #B49 | - | - | - | |
| #C50 | #B50 | - | - | - | |
| #C51 | #B51 | A/C high pressure sensor, signal | U = 1.4 V | The voltage increases with increased pressure. | |
| #C52 | #B52 | - | - | - | |
| #C53 | #B53 | A/C high pressure sensor, ground | U=Ulow | ||
| #C54 | #B54 | Communication cable control module (HS-CAN H) | |||
| #C55 | #B55 | - | - | - | |
| #C56 | #B56 | - | - | - | |
| #C57 | #B57 | - | - | - | |
| #C58 | #B58 | - | - | - |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.