Signal Specification
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.
All the values given below are between the terminals stated in column 1 and terminal #D6 in column 2 (power ground). This applies unless otherwise indicated in the last column.
NOTE:
It is important that the breakout box is connected and that the ground connections have been checked before starting to measure.
| U= | DC voltage in volts (V) | t = | Time in milliseconds (ms) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | % duty | Duty cycle (pulse ratio) as a percentage (%) |
| Connector A | |||||
|---|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active/Not active |
Ignition on Active/Not active |
Miscellaneous |
| #1 | #A1 | Reserve | - | - | - |
| #2 | #A2 | Reserve | - | - | - |
| #3 | #A3 | Extended X-supply (3) | Ulow | Ubat (Ignition switch position I & II) | XC90, Infotainment. |
| #4 | #A4 | Bifuel, power supply to the rear electronic module (REM) | Ulow | Ubat (Ignition switch position II & III) | - |
| #5 | #A5 | Reserve | - | - | - |
| #6 | #A6 | X supply (Voltage supply from ignition switch) | Ulow | Ubat (Ignition switch position I & II) | RTI/Radio |
| #7 | #A7 | Reserve | - | - | - |
| #8 | #A8 | 15-supply (Power supply from ignition switch) | Ulow | Ubat (Ignition switch position II & III) | - |
| #9 | #A9 | Reserve | - | - | - |
| #10 | #A10 | Extended X-supply (1) | Ubat | Ubat | Certain climate functions |
| #11 | #A11 | Reserve | - | - | - |
| #12 | #A12 | Left turn signal lamp | Ulow | Ulow -Ubat (Ignition position II) / Ulow | Pulsed signal, f = approximately 1.5 Hz |
| #13 | #A13 | Reserve | - | - | - |
| #14 | #A14 | Reserve | - | - | - |
| #15 | #A15 | Stop lamps, power supply | Ubat /Ulow | Ubat /Ulow | Does not go to the centrally located brake light (CAN-signal) |
| #16 | #A16 | Fuel pump (FP), power supply | Ulow | Ubat /Ulow | - |
| #17 | #A17 | Cigarette lighter, power supply | Ulow | Ubat | - |
| #18 | #A18 | Passenger seat heater, power supply | Ubat | Ubat | - |
| #19 | #A19 | Driver seat heater, power supply | Ubat | Ubat | - |
| #20 | #A20 | Collision signal | Ulow | Ubat /Ubat | Active in the event of a collision |
| #21 | #A21 | Reserve | - | - | - |
| #22 | #A22 | Power passenger seat, power supply | Ulow | Ubat | - |
| #23 | #A23 | Circulation pump saddle tank, voltage feed | Ulow | Ubat /Ulow | Only applies to vehicles from model year 2007 |
| #24 | #A24 | Reserve | - | - | - |
| #25 | #A25 | Extended X-supply (2) | Ubat | Ubat | Ubat
for 10 seconds after the key is removed, then Ulow Gear selector module (GSM). |
| #26 | #A26 | Reserve | - | - | - |
| #27 | #A27 | Steering wheel angle sensor module (SAS), power supply | Ulow | Ubat (Ignition switch position II & III) | - |
| #28 | #A28 | Reserve | - | - | - |
| #29 | #A29 | Rear right-hand turn signal lamp, power supply | Ulow | Ulow -Ubat (Ignition position II) / Ulow | Pulsed signal, f = approximately 1.5 Hz |
| #30 | #A30 | Reserve | - | - | - |
| #31 | #A31 | Reserve | - | - | - |
| #32 | #A32 | Reserve | - | - | - |
| Connector B | |||||
|---|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active/Not active |
Ignition on Active/Not active |
Miscellaneous |
| #1 | #B1 | Contact breaker, vacuum pump | Ulow | Ubat (Ignition switch position II & III) | - |
| #2 | #B2 | 30-supply to the central electronic module (CEM) | Ubat | Ubat | Right low beam |
| #3 | #B3 | 30-supply to the central electronic module (CEM) | Ubat | Ubat | Left low beam |
| #4 | #B4 | Right low beam | Ulow | Ubat /Ulow | Ulow when turning the engine |
| #5 | #B5 | Reserve | - | - | - |
| #6 | #B6 | Reserve | - | - | - |
| #7 | #B7 | Left low beam | Ulow | Ubat /Ulow | Ulow when turning the engine |
| #8 | #B8 | Daytime running lamps left | Ubat /Ulow | Ubat /Ulow | - |
| #9 | #B9 | Daytime running lamps right | Ubat /Ulow | Ubat /Ulow | - |
| #10 | #B10 | Extended X-supply (1) | Ubat | Ubat | Parking heater. Certain climate control functions. |
| #11 | #B11 | 30-supply to the stop lamp switch | Ubat | Ubat | - |
| #12 | #B12 | Reserve | - | - | - |
| #13 | #B13 | Reserve | - | - | - |
| #14 | #B14 | Reserve | - | - | - |
| #15 | #B15 | Power supply to the horn | Ubat /Ulow | Ubat /Ulow | - |
| #16 | #B16 | 30-supply, fuel pump (FP) | Ubat | Ubat | - |
| #17 | #B17 | Front fog lamp, left | Ulow | Ubat /Ulow | - |
| #18 | #B18 | Front fog lamp, right | Ulow | Ubat /Ulow | - |
| #19 | #B19 | Headlamp washer | Ulow | Ubat (Ignition switch position I & II) | - |
| #20 | #B20 | Extended X-supply (2) | Ubat | Ubat | Ubat for 10 seconds after the key is removed, then Ulow Transmission control module (TCM) |
| #21 | #B21 | Front washer motor | Ulow | Ubat /Ulow | - |
| #22 | #B22 | Power supply ABS/DSTC | Ulow | Ubat (Ignition switch position II & III) | - |
| #23 | #B23 | Voltage supply headlamp alignment | Ulow | Ubat at ignition switch positions II and III/U low | - |
| #24 | #B24 | Power supply to the parking lamps | Ubat | Ubat | - |
| #25 | #B25 | Siren control module (SCM) | Ubat /Ulow | Ubat /Ulow | - |
| #26 | #B26 | 30-supply to the engine control module (ECM) | Ubat | Ubat | - |
| #27 | #B27 | Full beam, left | Ubat /Ulow | Ubat /Ulow | - |
| #28 | #B28 | High beam, right | Ubat /Ulow | Ubat /Ulow | - |
| #29 | #B29 | Rear washer motor | Ulow | Ubat /Ulow | - |
| #30 | #B30 | Headlamp washer | Ulow | Ubat /Ulow | - |
| #31 | #B31 | Left turn signal lamp | Ulow | Ulow -Ubat / U low | - |
| #32 | #B32 | Right turn signal lamp | Ulow | Ulow -Ubat / U low | - |
| Connector C | |||||
|---|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active/Not active |
Ignition on Active/Not active |
Miscellaneous |
| #1 | #C1 | Status signal from the left-hand gas discharge lamp module (GDL) | Ulow | Ubat minus approx. 1.5 V in ignition position II, Ubat in ignition position I; regardless of being active/not active | - |
| #2 | #C2 | Status signal from the right-hand gas discharge lamp module (GDL) | Ulow | Ubat minus approx. 1.5 V in ignition position II, Ubat in ignition position I; regardless of being active/not active | - |
| #3 | #C3 | Windshield wiper, high speed | Ulow | Ulow if wipers not on; Ubat only when wipers move intermittently; Ubat when wipers move continuously at low speed; Ulow when the wipers move at high speed | - |
| #4 | #C4 | Windshield wipers Off/On | Ubat | Ubat if the wipers are not on; U low only during intermittent wiping; U low when low speed wiping; Ulow during high speed wiping | - |
| #5 | #C5 | 50-supply to the engine control module (ECM) | Ulow | Ubat only in ignition switch position III | - |
| #6 | #C6 | Starter motor relay | Ulow | U= 2.7 V | - |
| #7 | #C7 | Control signal, starter motor relay | Ulow | Ubat /Ulow | Ubat in ignition switch position 3, otherwise U low |
| #8 | #C8 | Reserve | - | - | - |
| #9 | #C9 | Auxiliary lamps | Ulow | Ubat /Ulow | - |
| #10 | #C10 | Washer fluid level sensor | Ubat if the tank is not empty; Ulow if less than 1 litre. | - | |
| #11 | #C11 | Control signal for the right-hand headlamp alignment motor | Ulow | Ubat /Ulow | - |
| #12 | #C12 | Control signal for the left-hand headlamp alignment motor | Ulow | Ubat /Ulow | - |
| #13 | #C13 | Reserve | - | - | - |
| #14 | #C14 | 15-supply to the engine control module (ECM) | Ulow | Ubat (Ignition switch position II & III) / U low otherwise | - |
| #15 | #C15 | Wake up signal to ECM | U = 0V/Ubat . | Ignition position I: U = 0V/Ubat. Ignition position II & III: U = Ubat | Ubat a time after ignition position 0 or I has been selected. Then 0 V. |
| #16 | #C16 | LIN bus communication | During communication the voltage is 0V - Ubat | - | |
| #17 | #C17 | Speed signal | Ulow | Ulow -Ubat | Frequency signal, increases with speed |
| #18 | #C18 | Reserve | - | - | - |
| #19 | #C19 | Parking lamps, left-hand front | Ubat /Ulow | Ubat /Ulow | - |
| #20 | #C20 | Parking lamps, right front | Ubat /Ulow | Ubat /Ulow | - |
| #21 | #C21 | Communication CAN_H high speed network | The voltage is 2.0-3.5 V during communication | - | |
| #22 | #C22 | Communication CAN_L high speed network | The voltage is 1.5-2.5 V during communication | - | |
| #23 | #C23 | Communication CAN_H high speed network | The voltage is 2.0-3.5 V during communication | Brake control module | |
| #24 | #C24 | Communication CAN_L high speed network | The voltage is 1.5-2.5 V during communication | Brake control module | |
| #25 | #C25 | High-pressure cleaning pump | Ubat | Ulow / Ubat | - |
| #26 | #C26 | Reserve | - | - | - |
| #27 | #C27 | Reserve | - | - | - |
| #28 | #C28 | Control signal, gear selector module (GSM) P/N position | - | Ubat /Ulow | - |
| #29 | #C29 | Reserve | - | - | - |
| #30 | #C30 | Reserve | - | - | - |
| #31 | #C31 | Input signal, windshield wipers | U= 10.9 V | Ulow as long as the wiper arm is not in the start position. When the wiper arm is in the start position, the voltage increases to U = 10.9 V/Not active: U= 10.9 V | - |
| #32 | #C32 | Volcano Lite CAN H | The voltage is 8.5-9.5 V during communication | - | |
| #33 | #C33 | Reserve | - | - | - |
| #34 | #C34 | Stop lamp switch signal | Ubat /Ulow | Ubat /Ulow | - |
| #35 | #C35 | Stop lamp switch signal | Ubat /Ulow | Ubat /Ulow | - |
| #36 | #C36 | Reserve | - | - | - |
| Connector D | |||||
|---|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active/Not active |
Ignition on Active/Not active |
Miscellaneous |
| #1 | #D1 | Courtesy lighting left front | Ulow -Ubat / U low | Ulow -Ubat / U low | Pulsed signal, f = approximately 100 Hz. |
| #2 | #D2 | Courtesy lighting right front | Ulow -Ubat / U low | Ulow -Ubat / U low | Pulsed signal, f = approximately 100 Hz. |
| #3 | #D3 | Courtesy lighting, left rear | Ulow -Ubat / U low | Ulow -Ubat / U low | Pulsed signal, f = approximately 100 Hz. |
| #4 | #D4 | Courtesy lighting, right rear | Ulow -Ubat / U low | Ulow -Ubat / U low | Pulsed signal, f = approximately 100 Hz. |
| #5 | #D5 | Reserve | - | - | - |
| #6 | #D6 | Power ground | U low /Ulow | - | |
| #7 | #D7 | Windshield wipers (Limp Home) | Ubat /Ulow | Ubat /Ulow | - |
| #8 | #D8 | X supply (Voltage supply from ignition switch) | U bat (Ignition switch positions I and II); Ulow otherwise | - | |
| #9 | #D9 | Signal (+) glove compartment lighting | Ubat | Ubat | 30 minutes after the ignition is switched off, Ulow |
| #10 | #D10 | Seat position sensor, driver | Ubat / | Ubat / | - |
| #11 | #D11 | Rain sensor | Ulow / Ubat | Ulow / Ubat | - |
| #12 | #D12 | Pulse width modulated signal (+) to rheostat | Ulow -Ubat if active, Ulow otherwise | - | |
| #13 | #D13 | Signal (+) ignition switch illumination | Ubat /Ulow | Ubat /Ulow | - |
| #14 | #D14 | Lamp, switch, hazard warning signal flashers, power supply. | Ubat -U low if activated; Ulow otherwise | - | |
| #15 | #D15 | S-supply (Power supply from ignition switch) | U bat (Ignition switch positions 0, I, II and III); Ulow otherwise | Ulow with key removed. | |
| #16 | #D16 | 15-supply (Power supply from ignition switch) | U bat (Key in positions II and III); Ulow otherwise | - | |
| #17 | #D17 | Signal (-) from horn switch | Ulow /Ubat | Ulow /Ubat | - |
| #18 | #D18 | Seat position sensor, passenger | Ulow | Ubat | Reference. |
| #19 | #D19 | Collision output signal to the phone (from the Supplemental Restraint System Module (SRS)) | - | - | - |
| #20 | #D20 | Signal (-) from the SRS-control module (airbag OK) | Ubat below 200 ms if the airbag is triggered, U low if the airbag has not deployed. | - | |
| #21 | #D21 | Reserve | - | - | - |
| #22 | #D22 | Signal (-) switch for the hazard warning signal flasher. | Ulow if button is held in, Ubat otherwise | - | |
| #23 | #D23 | Gear-shift position sensor | Ulow | Ulow / Ubat | Ulow in positions P and N |
| #24 | #D24 | LIN bus communication | During communication the voltage is 0V - Ubat | - | |
| #25 | #D25 | Seat position sensor, driver | - | - | (Only XC90 USA/CDN) |
| #26 | #D26 | Seat position sensor, passenger | - | - | (Only XC90 USA/CDN) |
| #27 | #D27 | Sensor, set belt reminder (+) | Ulow / Ubat | Ubat /Ubat | - |
| #28 | #D28 | Sensor, seat belt reminder (-) | U low /Ulow | U low /Ulow | - |
| #29 | #D29 | Twilight sensor | U low /Ulow | U=0.25-4.75V | - |
| #30 | #D30 | Sun sensor | U low /Ulow | U=0.25-4.75V | - |
| #31 | #D31 | Communication CAN_H high speed network | The voltage is 2.0-3.5 V during communication | - | |
| #32 | #D32 | Communication CAN_H high speed network | The voltage is 2.0-3.5 V during communication | - | |
| #33 | #D33 | Communication CAN_H high speed network | The voltage is 2.0-3.5 V during communication | OBD out | |
| #34 | #D34 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | - | |
| #35 | #D35 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | - | |
| #36 | #D36 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | - | |
| #37 | #D37 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | Via SRS | |
| #38 | #D38 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | Via UEM | |
| #39 | #D39 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | Via DDM | |
| #40 | #D40 | Communication CAN_H low speed network | The voltage is 2.0-3.5 V during communication | OBD out | |
| #41 | #D41 | Volcano Lite CAN H | The voltage is 8.5-9.5 V during communication | - | |
| #42 | #D42 | The sun sensor, twilight sensor and alarm LED share a common ground | U low /Ulow | U low /Ulow | - |
| #43 | #D43 | Fuel level sensor, left-hand side (+). Switched signal, 5/35 ms. | U~Ulow | U=0.54-3.96 V | Full: 0.54 V Empty: 3.96 V |
| #44 | #D44 | Fuel level sensor, right-hand side (+). Switched signal, 5/35 ms. | U~Ulow | U=0.54-3.96 V | Full: 0.54 V Empty: 3.96 V |
| #45 | #D45 | Fuel level sensor common ground | U low /Ulow | U low /Ulow | - |
| #46 | #D46 | Communication CAN_L high speed network | The voltage is 1.5-2.5 V during communication | - | |
| #47 | #D47 | Communication CAN_L high speed network | The voltage is 1.5-2.5 V during communication | - | |
| #48 | #D48 | Communication CAN_L high speed network | The voltage is 1.5-2.5 V during communication | OBD | |
| #49 | #D49 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | - | |
| #50 | #D50 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | - | |
| #51 | #D51 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | - | |
| #52 | #D52 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | Via SRS | |
| #53 | #D53 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | Via UEM | |
| #54 | #D54 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | Via DDM | |
| #55 | #D55 | Communication CAN L low speed network | The voltage is 1.5-2.5 V during communication | OBD out | |
| #56 | #D56 | IMMO Data | U low /Ulow | The voltage is 0.5-2.5 V during communication | Antenna ring/lighting ignition switch |
| #57 | #D57 | IMMO Clock | U low /Ulow | The voltage is 0.5-2.5 V during communication | Antenna ring/lighting ignition switch |
| #58 | #D58 | LIN bus 2 | During communication the voltage is 0 V - U bat | SWM/SAS | |
| #59 | #D59 | Speed signal | Ulow | Ulow -Ubat | Output signal Frequency signal, increases with speed |
| #60 | #D60 | 50-supply (Power supply from ignition switch) | U bat (Key in position III); Ulow otherwise | - | |