Signal Specification Central Electronic Module (CEM)
General
All the values given below apply between the respective connection (column 1) and power ground (#D5). If this is not the case, it is indicated in brackets.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| 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 modulated signal in % |
CONNECTOR C1 (GREEN)
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active / Not active |
Ignition on Active / Not active |
Miscellaneous |
|---|---|---|---|---|---|
| #A1 | #C1:1 | Reserve | - | - | - |
| #A2 | #C1:2 | Relay heated windscreen, control signal | Ubat | Ulow / Ubat | Applies to V70, XC70, S80, S80L with structure week 201320- |
| #A3 | #C1:3 | Collision signal, output signal | Ulow | Ubat /Ulow | Collision signal to Engine Control Module (ECM) For hybrid vehicles, the signal also goes to the Battery Energy Control Module (BECM) |
| #A4 | #C1:4 | Front left-hand turn signal lamp, power supply | Ulow | Ubat -Ulow /Ulow | Flashing hazard lights also work with ignition off. |
| #A5 | #C1:5 | Brake light switch, output signal | Ubat /Ulow | Ubat /Ulow | Signal to Engine Control Module (ECM) |
| #A6 | #C1:6 | Engine Control Module (ECM), waking | Ulow | Ubat /Ulow | - |
| #A7 | #C1:7 | Reserve | - | - | - |
| #A8 | #C1:8 | Auxiliary light relay, control signal | U = 0 V | U = Ulow / U = 0 V | Extra accessory |
| #A9 | #C1:9 | Comfort relay, control signal | Ubat | Ulow / Ubat | - |
| #A10 | #C1:10 | Headlamp cleaning, control signal | Ubat | Ulow / Ubat | - |
| #A11 | #C1:11 | Relay, horn, control signal | Ulow / Ubat | Ulow / Ubat | - |
| #A12 | #C1:12 | Electronic power steering module, control signal | Ubat
with ignition off Frequency signal otherwise |
- | |
| #A13 | #C1:13 | Relay 15-feed, control signal | Ubat | ulow | Electric distribution box, engine compartment |
| #A14 | #C1:14 | Reserve | - | - | - |
| #A15 | #C1:15 | Running light right front, side running light right, voltage feed | Ubat /Ulow | Ubat /Ulow | For S60/V60/XC60 also right LED-light in the front. |
| #A16 | #C1:16 | Clutch pedal sensor, external, voltage supply | Ulow | U = 5 V | - |
| #A17 | #C1:17 | Reserve | - | - | - |
| #A18 | #C1:18 | Running light left front, side running light left, voltage feed | Ubat /Ulow | Ubat /Ulow | For S60/V60/XC60 also left LED-light in the front. |
| #A19 | #C1:19 | LIN, Left Headlamp Control Unit (LHCU) | During communication the voltage is 0 V - Ubat | Spare on vehicles before model year 2012 | |
| #A20 | #C1:20 | LIN, Right Headlamp Control Unit (RHCU) | During communication the voltage is 0 V - Ubat | Spare on vehicles before model year 2012 | |
| #A21 | #C1:21 | Reserve | - | - | - |
| #A22 | #C1:22 | Reserve | - | - | - |
| #A23 | #C1:23 | Reserve | - | - | - |
| #A24 | #C1:24 | Reserve | - | - | - |
| #A25 | #C1:25 | Reserve | - | - | - |
| #A26 | #C1:26 | Reserve | - | - | - |
| #A27 | #C1:27 | Reserve | - | - | - |
| #A28 | #C1:28 | Washer fluid level, switch | Ulow
at normal level Ubat at level below 1 liter |
- | |
| #A29 | #C1:29 | Reversing switch, input signal | - | Only manual | |
| #A30 | #C1:30 | MS-CAN H | During communication the voltage is 2.0 - 3.5 V | - | |
| #A31 | #C1:31 | MS-CAN L | During communication the voltage is 1.5 - 2.5 V | - | |
| #A32 | #C1:32 | Reserve | - | - | - |
| #A33 | #C1:33 | Reserve | - | - | - |
| #A34 | #C1:34 | Clutch pedal sensor, external, input signal | - | 0-5 V | - |
| #A35 | #C1:35 | Front axle sensor, control signal | Ulow | U=0-5V with ignition on | Spare on vehicles before model year 2012 |
| #A36 | #C1:36 | Front axle sensor, power supply | Ulow | U = 5 V | Spare on vehicles before model year 2012 |
| #A37 | #C1:37 | Reserve | - | - | - |
| #A38 | #C1:38 | Reserve | - | - | - |
| #A39 | #C1:39 | Engine hood, switch 1 | Ulow
with the hood closed Ulow -Ubat with the hood open |
Pulsed signal, f=100Hz | |
| #A40 | #C1:40 | Brake fluid level, switch | Ulow
at normal level Ubat at low level |
- | |
| #A41 | #C1:41 | Start button 1, output signal | Ubat /Ulow | Ubat /Ulow | Connection of #C3-3 to Engine Control Module (ECM). |
| #A42 | #C1:42 | Coolant level sensor, switch | Ulow
at normal level Ubat at low level |
- | |
| #A43 | #C1:43 | Engine hood, switch 2 | Ulow
with the bonnet open Ulow -Ubat with the bonnet closed |
Pulsed signal, f=100Hz Only vehicles with Remote start, engine with structure week 201420- |
|
| #A44 | #C1:44 | Reserve | - | - | - |
| #A45 | #C1:45 | Reserve | - | - | - |
| #A46 | #C1:46 | Reserve | - | - | - |
| #A47 | #C1:47 | LIN bus 2 | During communication the voltage is 0 V - Ubat | Siren Control Module (SCM) | |
| #A48 | #C1:48 | LIN bus 8 | During communication the voltage is 0 V - Ubat | Wiper Motor Module (WMM) | |
| #A49 | #C1:49 | LIN bus 8 | During communication the voltage is 0 V - Ubat | Battery Monitoring Sensor (BMS) | |
| #A50 | #C1:50 | Reserve | - | - | - |
| #A51 | #C1:51 | Reserve | - | - | - |
| #A52 | #C1:52 | Clutch pedal sensor, external, ground | Ulow | Ulow | - |
| #A53 | #C1:53 | Front axle sensor, ground | Ulow /Ulow | Ulow /Ulow | Spare on vehicles before model year 2012 |
| #A54 | #C1:54 | Electronic ground | U = Ulow | U = Ulow | - |
| #A55 | #C1:55 | Left high beam, power supply | Ubat | Ubat /Ulow | - |
| #A56 | #C1:56 | Front, left daytime running lights ------------------------------- Left/right parking light, power supply |
Ulow | Ubat /Ulow | Front left daytime running light only applies to vehicles with structure week 201320- equipped with dedicated parking lights ------------------------------ Left/right parking lights, power supply applies to S60, XC60, V60, S60L with structure week 201320- |
| #A57 | #C1:57 | Front, right daytime running lights | Ulow | Ubat /Ulow | Only applies to vehicles with structure week 201320- equipped with dedicated daytime running lights |
| #A58 | #C1:58 | Reserve | - | - | - |
| #A59 | #C1:59 | Reserve | - | - | - |
| #A60 | #C1:60 | Siren Control Module (SCM), voltage feed | Ubat | Ubat | - |
| #B1 | #C1:61 | Reserve | - | - | - |
| #B2 | #C1:62 | Reserve | - | - | - |
| #B3 | #C1:63 | Relay 15-feed, voltage feed | Ulow | Ubat | Electric distribution box, engine compartment |
| #B4 | #C1:64 | Right low beam, power supply | Ulow | Ubat /Ulow | - |
| #B5 | #C1:65 | Rear washing, washer motor, power supply --------------------------------- Heated Steering Wheel Module (HSWM), power supply |
Ulow | Ubat /Ulow | For vehicles with structure week 201320-, this only applies to washer motors for S80 and V70, XC70 ----------------------------------- Power supply Heated Steering Wheel Module (HSWM) only S60, S60L, V60 and XC60 structure week 201320- |
| #B6 | #C1:66 | Front right-hand turn signal lamp, power supply | Ulow | Ubat -Ulow /Ulow | Flashing hazard lights also work with ignition off. |
| #B7 | #C1:67 | Reserve | - | - | - |
| #B8 | #C1:68 | Reserve | - | - | - |
| #B9 | #C1:69 | Reserve | - | - | - |
| #B10 | #C1:70 | Reserve | - | - | - |
| #B11 | #C1:71 | Front left fog lamp, power supply | Ulow | Ubat /Ulow | Spare on S60 / V60 |
| #B12 | #C1:72 | Front right fog lamp, power supply | Ulow | Ubat /Ulow | Spare on S60 / V60 |
| #B13 | #C1:73 | Right high beam, power supply | Ubat /Ulow | Ubat /Ulow | - |
| #B14 | #C1:74 | Forward Looking Radar (FLR), 15-voltage feed | Ulow | Ubat | - |
| #B15 | #C1:75 | Left low beam, power supply | Ulow | Ubat /Ulow | - |
| #B16 | #C1:76 | Front washing, washer motor, power supply -------------------------------- Heated windscreen, control signal relay |
Ubat | Ubat
/Ulow --------------- Ulow / Ubat |
For vehicles with structure week 201320-, this only applies to washer motors for S80 and V70. ----------------------------------- Relay control heated windscreen only S60, S60L, V60 and XC60 structure week 201320- |
CONNECTOR C2 (BROWN)
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active / Not active |
Ignition on Active / Not active |
Miscellaneous |
| #C1 | #C2:1 | Reserve | - | - | - |
| #C2 | #C2:2 | Rear window defroster, control signal | Ubat | Ulow / Ubat | - |
| #C3 | #C2:3 | Foldable head restraint ------------------------------------------- Relay washer motor, rear washing, control signal |
Ubat | Ulow / Ubat | Applies to folding head restraints for vehicles with structure week -201319 ---------------------------------------------- Relay washer motor only applies to V60 and XC60 with structure week 201320- |
| #C4 | #C2:4 | Rear wiper motor, control signal | - | Ulow / Ubat | - |
| #C5 | #C2:5 | Relay 15-feed, control signal | Ubat | Ulow | Electrical distribution box in passenger compartment |
| #C6 | #C2:6 | Parking brake switch | - | Ulow / Ubat | Not used on vehicles with electric parking brake (EPB). For certain versions with electric parking brake (EPB) pin C2:6 is connected to pin C1:8 on Park Brake Module (PBM), but without function. |
| #C7 | #C2:7 | LIN bus 2 | During communication the voltage is 0 V - Ubat | Heart beat sensor (HBS) and mass movement sensor (MMS). (Mass movement sensor only for XC60 with panorama roof.) (Heart beat sensor only for vehicles before model year 2011.) | |
| #C8 | #C2:8 | LIN bus 0 | During communication the voltage is 0 V - Ubat | - | |
| #C9 | #C2:9 | Central high level brake light, power supply | Ubat /Ulow | Ubat /Ulow | Only station wagon |
| #C10 | #C2:10 | Lock motor central lock rear door left, switch | Ubat
if door open Ulow in others |
Door switch | |
| #C11 | #C2:11 | Lock motor central lock front door left, switch | Ubat
if door open Ulow in others |
Door switch | |
| #C12 | #C2:12 | Reserve | - | - | - |
| #C13 | #C2:13 | Extended CAN L, termination | During communication the voltage is 1.5 - 2.5 V | During communication the voltage is 1.5 - 2.5 V | - |
| #C14 | #C2:14 | Extended CAN H, termination | During communication the voltage is 2.0 - 3.5 V | During communication the voltage is 2.0 - 3.5 V | - |
| #C15 | #C2:15 | Fuel level sensor, ejector side | Ulow | U=0.5-4 V | Pulsed signal (PWM), f = 5 Hz (f = 1 Hz for flexifuel vehicles) |
| #C16 | #C2:16 | Accelerator pedal position sensor, power supply | Ulow | U = 5 V | - |
| #C17 | #C2:17 | Voltage secondary battery | Ubat | Ubat | Only on vehicles with the function Automatic start/stop of engine. The voltage may differ from the vehicle's other voltage. First when the secondary battery is connected to the vehicle's electrical system (secondary battery relay activated) when, e.g., charging the battery, the voltage is as high as for other voltages in the vehicle. |
| #C18 | #C2:18 | Ground lighting, control voltage | Ulow / Ubat | Ulow / Ubat | Certain versions only |
| #C19 | #C2:19 | Luggage compartment lighting tailgate, output grounded control signal | - | - | Only V60 and XC60 with structure week 201320- |
| #C20 | #C2:20 | Relay washer motor, front washing, control signal -------------------------------- Relay Heated Steering Wheel Module (HSWM), control signal |
Ubat | Ulow / Ubat | Relay washer motor only applies to S60, S60L, V60 and XC60 with structure week 201320- ----------------------------------- Relay Heated Steering Wheel Module (HSWM) only applies to V70, XC70, S80 and S80L |
| #C21 | #C2:21 | Reserve | - | - | - |
| #C22 | #C2:22 | Sun curtain, control signal up | - | Ulow / Ubat | Only S60L |
| #C23 | #C2:23 | Seat belt reminder sensor, passenger seat | Ulow / Ubat | - | |
| #C24 | #C2:24 | Lock unit tailgate | Ulow / Ubat | Ulow / Ubat | Signal open |
| #C25 | #C2:25 | Reserve | - | - | - |
| #C26 | #C2:26 | Data link connector brake light | Ulow | Ulow / Ubat | Also designated brake pedal switch |
| #C27 | #C2:27 | Start button 1, input / output signal | Ubat /Ulow | Ubat /Ulow | Signal to Keyless Vehicle Module (KVM) |
| #C28 | #C2:28 | Lock motor central lock rear door right, switch | Ubat
if door open Ulow in others |
Door switch | |
| #C29 | #C2:29 | Lock motor central lock front door right, switch | Ubat
if door open Ulow in others |
Door switch | |
| #C30 | #C2:30 | Lock unit tailgate/ Lock motor central lock tailgate, switch | Ubat
if tailgate open Ulow in others |
Lock motor central lock boot lid: S80/S60/XC60 Lock unit boot lid: V70/XC70/V60 |
|
| #C31 | #C2:31 | Extended CAN L | During communication the voltage is 1.5 - 2.5 V | During communication the voltage is 1.5 - 2.5 V | - |
| #C32 | #C2:32 | Extended CAN H | During communication the voltage is 2.0 - 3.5 V | During communication the voltage is 2.0 - 3.5 V | - |
| #C33 | #C2:33 | Fuel level sensor, pump side | Ulow | U=0.5-4 V | Pulsed signal (PWM), f= 5 Hz (f = 1 Hz for flexifuel vehicles) |
| #C34 | #C2:34 | Accelerator pedal position sensor, input signal | - | U=0-5 V | - |
| #C35 | #C2:35 | Rear axle sensor, control signal | Ulow /Ulow | U=0-5V with ignition on | Spare on vehicles before model year 2012 |
| #C36 | #C2:36 | Rear axle sensor, power supply | Ulow /Ulow | U = 5 V | Spare on vehicles before model year 2012 |
| #C37 | #C2:37 | Sun curtain, control signal down -------------------------------- Input signal feedback diagnostic luggage compartment lighting |
Ubat | Ulow / Ubat | Sun curtain only applies to S60L ----------------------------------- Feedback signal only applies to V60 and XC60 structure week 201320- The signal is used to diagnose that one of the luggage compartment lamps is not connected |
| #C38 | #C2:38 | Reserve | - | - | - |
| #C39 | #C2:39 | Lock unit tailgate | - | - | Lock signal, only V70/V60/XC70 Spare for vehicles with structure week 201046-. |
| #C40 | #C2:40 | Reserve | - | - | - |
| #C41 | #C2:41 | Clutch pedal switch, internal, 75%. | Ulow / Ubat | Ulow / Ubat | Signal to Engine Control Module (ECM) and Transmission Control Module (TCM) |
| #C42 | #C2:42 | Clutch pedal switch, internal, 75%. | Ulow / Ubat | Ulow / Ubat | - |
| #C43 | #C2:43 | LIN-bridge between Keyless Vehicle Module (KVM) and remote receiver (RKE) | During communication the voltage is UV low - Ubat | Only vehicles with keyless entry (KVM) | |
| #C44 | #C2:44 | Rear left turn signal lamp, power supply | Ulow | Ubat -Ulow /Ulow | Flashing hazard lights also work with ignition off. |
| #C45 | #C2:45 | Brake light switch, input signal | Ubat /Ulow | Ubat /Ulow | - |
| #C46 | #C2:46 | Ground lighting rear, front and rear sill molding lighting, control voltage | - | Ulow / Ubat | Certain versions only |
| #C47 | #C2:47 | Rear right parking lamp, power supply | Ubat /Ulow | Ubat /Ulow | - |
| #C48 | #C2:48 | License plate lighting, power supply | Ubat /Ulow | Ubat /Ulow | - |
| #C49 | #C2:49 | Rear left parking lamp, power supply | Ubat /Ulow | Ubat /Ulow | - |
| #C50 | #C2:50 | For vehicles with model year -2012: Emergency brake lamp, power supply. For vehicles with model year 2013-: Rear fog lamp right, power supply. |
Ubat /Ulow | Ubat /Ulow | - |
| #C51 | #C2:51 | Fuel level sensor, ground | Ulow | Ulow | - |
| #C52 | #C2:52 | Accelerator pedal position sensor, ground | Ulow | Ulow | - |
| #C53 | #C2:53 | Rear axle sensor, ground | Ulow /Ulow | Ulow /Ulow | Spare on vehicles before model year 2012. |
| #C54 | #C2:54 | For vehicles with model year -2012-: Rear fog lamp, power supply. For vehicles with model year 2013-: Rear fog lamp left, power supply. |
Ulow | Ubat /Ulow | - |
| #C55 | #C2:55 | Brake light switch, 30-power supply | Ubat | Ubat | - |
| #C56 | #C2:56 | Reserve | - | - | - |
| #C57 | #C2:57 | Reserve | - | - | - |
| #C58 | #C2:58 | Sensor accelerator pedal, 15-voltage feed Ulow | Ulow | Ubat | Via relay 15-feed, electrical distribution box engine compartment |
| #C59 | #C2:59 | Left brake light, Brake light signal for trailer |
Ubat /Ulow | Ubat /Ulow | For V70 / XC70 both left and right brake light is connected to #C2:59. |
| #C60 | #C2:60 | Right brake light | Ubat /Ulow | Ubat /Ulow | Spare on V70 / XC70. |
| #D1 | #C2:61 | Reserve | - | - | - |
| #D2 | #C2:62 | Tank hatch, voltage feed for unlocking | Ubat /Ulow | Ubat /Ulow | - |
| #D3 | #C2:63 | Lock unit tailgate, unlocking, voltage feed | Ubat /Ulow | Ubat /Ulow | - |
| #D4 | #C2:64 | Rear wiper motor, voltage feed | Ulow | Ubat | - |
| #D5 | #C2:65 | Power ground | Ulow | Ulow | - |
| #D6 | #C2:66 | Heartbeat sensor (HBS) and Mass movement sensor (MMS), 30-power supply | Ubat | Ubat | Mass movement sensor only for XC60 with panorama roof. Heart beat sensor only for vehicles before model year 2011. |
| #D7 | #C2:67 | Reserve | - | - | - |
| #D8 | #C2:68 | Reserve | - | - | - |
| #D9 | #C2:69 | Rear right turn signal lamp, power supply | Ulow | Ubat -Ulow /Ulow | Flashing hazard lights also work with ignition off |
| #D10 | #C2:70 | Interior lighting for cargo compartment, switch closing tailgate, lock unit tailgate, power seat module (PSM) front, power window regulator switch driver's door, refrigerator lighting, ground lighting rear, front and rear sill molding lighting, rear courtesy lighting, power supply | Ulow | Ubat | Refrigerator lighting, rear ground lighting, front and rear sill molding lighting, rear courtesy lighting certain versions only |
| #D11 | #C2:71 | Lock unit tailgate, locking ------------------------------------------- Foldable head restraint |
Ubat /Ulow | Ubat /Ulow | Only V70/XC70/V60 structure week -201046. ---------------------------------------------- Applies to folding head restraints for vehicles with structure week 201320- |
| #D12 | #C2:72 | Occupant Weight Sensor (OWS), power supply | Ulow | Ubat | - |
| #D13 | #C2:73 | Back-up light left, power supply | Ulow | Ubat /Ulow | For V70 / XC70 both left and right back-up light are supplied with voltage from #C2:73. |
| #D14 | #C2:74 | Back-up light right, power supply | Ulow | Ubat /Ulow | - |
| #D15 | #C2:75 | Reserve | - | - | - |
| #D16 | #C2:76 | Fuel pump, power supply | Ulow | Ubat /Ulow | - |
CONNECTOR C3 (BLUE)
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active / Not active |
Ignition on Active / Not active |
Miscellaneous |
| #E1 | #C3:1 | Solar sensor left / right, dusk sensor and alarm diode, ground | Ulow | Ulow | - |
| #E2 | #C3:2 | Sun sensor left | Ulow | U = 0.25 - 4.75 V | - |
| #E3 | #C3:3 | Start button, input signal 1 | Ubat /Ulow | Ubat /Ulow | - |
| #E4 | #C3:4 | Start button, input signal 2 | Ubat /Ulow | Ubat /Ulow | - |
| #E5 | #C3:5 | Forward Sensing Module (FSM), 15-power supply | Ulow | Ubat | Voltage feed via relay 15-feed, electrical distribution box engine compartment |
| #E6 | #C3:6 | HS-CAN H | During communication the voltage is 2.0 - 3.5 V | - | |
| #E7 | #C3:7 | HS-CAN L | During communication the voltage is 1.5 - 2.5 V | - | |
| #E8 | #C3:8 | Reserve | - | - | - |
| #E9 | #C3:9 | Reserve | - | - | - |
| #E10 | #C3:10 | Symbol lighting start button, voltage feed | Ubat | Ulow | Only vehicles with ignition antenna unit (IAU) |
| #E11 | #C3:11 | Reserve | - | - | - |
| #E12 | #C3:12 | Horn, switch | Ulow / Ubat | Ulow / Ubat | - |
| #E13 | #C3:13 | Hazard flashers, switch | Ulow / Ubat | Ulow / Ubat | - |
| #E14 | #C3:14 | ITO collision signal from Supplemental Restraint System Module (SRS) Collision signal to telematic module (PHM / TEM) (Volvo On Call) |
Normal, f = 10 Hz, PWM = 50 %. Impact registered, f = 250 Hz, PWM = 50 %, for up to 5 seconds. |
- | |
| #E15 | #C3:15 | Reserve | - | - | - |
| #E16 | #C3:16 | Reserve | - | - | - |
| #E17 | #C3:17 | Reserve | - | - | - |
| #E18 | #C3:18 | Reserve | - | - | - |
| #E19 | #C3:19 | Twilight sensor | Ulow | U = 0.25 V - 4.75 V | - |
| #E20 | #C3:20 | Sun sensor right | Ulow | U = 0.25 V - 4.75 V | - |
| #E21 | #C3:21 | Reserve | - | - | - |
| #E22 | #C3:22 | Reserve | - | - | - |
| #E23 | #C3:23 | Reserve | - | - | - |
| #E24 | #C3:24 | Reserve | - | - | - |
| #E25 | #C3:25 | Reserve | - | - | - |
| #E26 | #C3:26 | Reserve | - | - | - |
| #E27 | #C3:27 | Reserve | - | - | - |
| #E28 | #C3:28 | Reserve | - | - | - |
| #E29 | #C3:29 | Reserve | - | - | - |
| #E30 | #C3:30 | Reserve | - | - | - |
| #E31 | #C3:31 | Reserve | - | - | - |
| #E32 | #C3:32 | Reserve | - | - | - |
| #E33 | #C3:33 | Reserve | - | - | - |
| #E34 | #C3:34 | Reserve | - | - | - |
| #E35 | #C3:35 | Reserve | - | - | - |
| #E36 | #C3:36 | Reserve | - | - | - |
| #E37 | #C3:37 | Hazard flashers, lighting for switches, voltage feed | Ubat
- Ulow
if activated Ulow in others |
Ubat - Ulow when activated | |
| #E38 | #C3:38 | Reverse lockout, power supply | - | ||
| #E39 | #C3:39 | Alarm diode, power supply | Alarm activated: approx. 2 V 0.5 Hz 5% duty Alarm triggered: approx. 2 V 4 Hz 25% duty |
- | |
| #E40 | #C3:40 | Reserve | - | - | - |
| #E41 | #C3:41 | Reserve | - | - | - |
| #E42 | #C3:42 | Positive temperature coefficient (PTC) heater, control signal | Ubat | Ubat -Ulow /Ubat | - |
| #E43 | #C3:43 | Switch, trunk lid/tailgate private locking | Ulow | Ulow / Ubat | - |
| #E44 | #C3:44 | LIN, Remote Receiver Module (RRX / RKE) | The voltage is 0 V - Ubat during communication | Spare on S60 / V60. Remote receiver (RKE) for vehicles with keyless entry (KVM) Remote Receiver Module (RRX) for vehicles without keyless entry (KVM) |
|
| #E45 | #C3:45 | Reserve | - | - | - |
| #E46 | #C3:46 | LIN bus 3 | During communication the voltage is 0 V - Ubat | Steering Column Lock Module (SCL) | |
| #E47 | #C3:47 | LIN bus 3 | During communication the voltage is 0 V - Ubat | Start Control Unit (SCU) For S60, V60, XC60 (XC60 with structure week from 1046) and from model year 2012 also S80, S80L, V70, XC70 Ignition antenna unit (IAU) |
|
| #E48 | #C3:48 | LIN bus 1 | During communication the voltage is 0 V - Ubat | Steering Wheel Module (SWM) | |
| #E49 | #C3:49 | LIN bus 1 | During communication the voltage is 0 V - Ubat | Light Switch Module (LSM) | |
| #E50 | #C3:50 | Reserve | - | - | - |
| #E51 | #C3:51 | Reserve | - | - | - |
| #E52 | #C3:52 | Reserve | - | - | - |
| #E53 | #C3:53 | Reserve | - | - | - |
| #E54 | #C3:54 | Reserve | - | - | - |
| #E55 | #C3:55 | Front courtesy lighting right and left, control voltage | Ulow / Ubat | Ulow / Ubat | For S80, S80L, V70 and XC70 from model year 2012 the LED lighting can also be lit when driving in the dark. |
| #E56 | #C3:56 | Glove compartment lighting, front courtesy lighting, power supply | Ulow | Ubat | Voltage feed for alcolock (option) |
| #E57 | #C3:57 | Reserve | - | - | - |
| #E58 | #C3:58 | Reserve | - | - | - |
| #E59 | #C3:59 | Reserve | - | - | - |
| #E60 | #C3:60 | Reserve | - | - | - |
| #F1 | #C3:61 | Steering Wheel Module (SWM), power supply | Ubat | Ubat | - |
| #F2 | #C3:62 | Driver Information Module (DIM), power supply | Ulow | Ubat | - |
| #F3 | #C3:63 | Forward Sensing Module (FSM) and Forward Looking Radar (FLR) power supply | Ulow | Ubat | - |
| #F4 | #C3:64 | Reserve | - | ||
| #F5 | #C3:65 | Infotainment Control Module (ICM) and Integrated Audio Module (IAM), 30-voltage feed | Ubat | Ubat | Not used on S60 / V60 |
| #F6 | #C3:66 | Supplemental Restraint System Module (SRS), voltage feed | Ulow | Ubat | For XC60/S60/V60, also voltage feed of Closing Velocity Module (CVM) |
| #F7 | #C3:67 | PTC-heater and switch electrically heated rear seat, 15-voltage feed | Ubat
with ignition in position II Ulow in others |
- | |
| #F8 | #C3:68 | Diagnostics socket (OBDII), voltage feed | Ubat | Ubat | - |
| #F9 | #C3:69 | Security lighting, ashtray lighting, symbol lighting parking brake, clock lighting and control panel rear seat functions, power supply, | Ubat -Ulow /Ulow | Ubat - Ulow | For S80L also voltage feed for symbol lighting sun blind switch as well as switch for passenger seat (from backseat). V70/XC70/S80 also voltage feed for symbol lighting, rear headphone socket. Control panel rear seat functions and clock only on certain models |
| #F10 | #C3:70 | Reserve | - | - | - |
| #F11 | #C3:71 | Reserve | - | - | - |
| #F12 | #C3:72 | Reserve | - | - | - |
| #F13 | #C3:73 | Climate control module (CCM), 30-voltage feed | -Ubat | Ubat | - |
| #F14 | #C3:74 | Ignition (SCU) and electronic immobilizer, voltage feed | Ubat | Ubat | Start Control Unit (SCU) For S60, V60, XC60 (XC60 with structure week from 1046) and from model year 2012 also S80, S80L, V70, XC70 Ignition antenna unit (IAU) |
| #F15 | #C3:75 | Sun Roof Module (SRM), voltage feed | Ubat | Ubat | - |
| #F16 | #C3:76 | Internal relay, Steering Column Lock Module (SCL), power supply | Ubat /Ulow | Ubat /Ulow | The relay is closed for a short period of time when the key is inserted or removed from the Start Control Unit (SCU). |
CONNECTOR C4 (BLACK)
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active / Not active |
Ignition on Active / Not active |
Miscellaneous |
| #B21 | #C4:1 | Roof hatch, speed signal | Ubat | Ubat -Ulow /Ubat | - |
| #B22 | #C4:2 | High level brake light, power supply | Ubat /Ulow | Ubat /Ulow | Only sedan model |
| #B23 | #C4:3 | Seat belt reminder LED, power supply | Ulow | Ubat /Ulow | - |
| #B24 | #C4:4 | Tank hatch, global closing, control signal | Ulow | Ulow during communication in pulses of 20 ms / Other time Ubat | During communication five pulses maximum are sent. Then the signal returns to Ubat. |
| #B25 | #C4:5 | Reserve | - | - | - |
| #B26 | #C4:6 | LIN-bridge between remote receiver (RKE) and Keyless Vehicle Module (KVM) | During communication the voltage is UV low - Ubat | Only for vehicles with keyless entry (KVM). | |
| #B27 | #C4:7 | Reserve | - | - | - |
| #B28 | #C4:8 | Reserve | - | - | - |
| #B29 | #C4:9 | LIN bus 2 | During communication the voltage is UV low - Ubat | Movement sensor (IMS) | |
| #B30 | #C4:10 | LIN bus 8 | During communication the voltage is UV low - Ubat | Rain Sensor Module (RSM) | |
| #B31 | #C4:11 | Automatic dimming interior rearview mirror and Rain sensor, 15-voltage feed | Ulow | Ubat | For S60 / V60 also voltage feed of humidity sensor (HUS). |
| #B32 | #C4:12 | Reserve | - | - | - |
| #B33 | #C4:13 | Reserve | - | - | |
| #B34 | #C4:14 | Interior lighting roof, control voltage | - | Ulow / Ubat | - |
| #B35 | #C4:15 | Reserve | - | - | - |
| #B36 | #C4:16 | Reserve | - | - | - |
| #B37 | #C4:17 | Reserve | - | - | - |
| #B38 | #C4:18 | Voltage feed to: rain sensor (RMS), make-up mirror lighting, rear headlining light, front headlining light | Ulow | Ubat | - |
| #B39 | #C4:19 | Remote receiver (RKE), Remote Receiver Module (RRX), voltage feed | Ubat | Ubat | Remote receiver (RKE) for vehicles without keyless entry (KVM). Remote Receiver Module (RRX) for vehicles with keyless entry (KVM). |
| #B40 | #C4:20 | Movement sensor (IMS), 30-power supply | Ubat | Ubat | - |