Signal Description Central Electronic Module (CEM)
All values given below are between the terminals stated in column 1 and terminal #D5 (power ground). This applies unless otherwise indicated in the last column.
NOTE:
It is important to 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 (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse-width modulated signal in % | - | - |
SIGNAL TABLE
| 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 | Reserve | - | - | - |
| #A3 | #C1:3 | Collision signal, output signal | Ulow | Ubat/ /Ulow | Collision signal to Engine control module (ECM) |
| #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, input 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=Ubat /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 | Left headlamp control unit (LHCU), LIN communication | The voltage is 0 V - Ubat during communication | Spare on vehicles before model year 2012 | |
| #A20 | #C1:20 | Right headlamp control unit (RHCU), LIN communication | The voltage is 0 V - Ubat during communication | 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 litre |
- | |
| #A29 | #C1:29 | Reversing switch, input signal | - | - | Only manual |
| #A30 | #C1:30 | Communication CAN_H, Average speed network | During communication the voltage is 2.0 - 3.5 V | MS-CAN | |
| #A31 | #C1:31 | Communication CAN_L, Average speed network | During communication the voltage is 1.5 - 2.5 V | MS-CAN | |
| #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 /Ulow | U = 0-5V with ignition on | Spare on vehicles before model year 2012 |
| #A36 | #C1:36 | Sensor front axle and rear axle, power supply | Ulow /Ulow | Ubat with ignition on | Spare on vehicles before model year 2012 |
| #A37 | #C1:37 | Reserve | - | - | - |
| #A38 | #C1:38 | Reserve | - | - | - |
| #A39 | #C1:39 | Engine hood, switch | Ulow
with the hood closed Ulow -Ubat with the hood open |
Pulsed signal, f = 100 Hz | |
| #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 | Reserve | - | - | - |
| #A44 | #C1:44 | Reserve | - | ||
| #A45 | #C1:45 | Reserve | - | - | - |
| #A46 | #C1:46 | Reserve | - | - | - |
| #A47 | #C1:47 | Communication LIN bus 2 | During communication the voltage is 0 V - Ubat | Siren control module (SCM) | |
| #A48 | #C1:48 | Communication LIN bus 8 | During communication the voltage is 0 V - Ubat | Wiper motor module (WMM) | |
| #A49 | #C1:49 | Communication LIN bus 8 | During communication the voltage is 0 V - Ubat | Battery Monitoring Module (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 /Ulow | Ubat /Ulow | - |
| #A56 | #C1:56 | Reserve | - | - | - |
| #A57 | #C1:57 | Reserve | - | - | - |
| #A58 | #C1:58 | Reserve | - | - | - |
| #A59 | #C1:59 | Reserve | - | - | - |
| #A60 | #C1:60 | Siren (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 washer motor, voltage feed | Ulow | Ubat /Ulow | - |
| #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 washer motor, power supply | Ulow | Ubat /Ulow | - |
| 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 | Ubat | Ulow /Ubat | - |
| #C4 | #C2:4 | Rear wiper motor, control signal | - | Ulow /Ubat | - |
| #C5 | #C2:5 | Relay 15-feed, control signal | Ubat | Ulow | Electric distribution box in luggage compartment |
| #C6 | #C2:6 | Parking brake switch | - | Ulow /Ubat | Not on vehicles with electric parking brake (EPB) |
| #C7 | #C2:7 | Communication 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 fr vehicles before model year 2011.) | |
| #C8 | #C2:8 | Communication 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 | Reserve | - | - | - |
| #C14 | #C2:14 | Reserve | - | - | - |
| #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 (AP) position sensor, power supply | Ulow | U = 5 V | - |
| #C17 | #C2:17 | Voltage secondary battery | Ubat | Ubat | Only on vehicles with the function "Automatic engine start/stop". 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 the same as for other voltage in the vehicle. |
| #C18 | #C2:18 | Reserve | - | - | - |
| #C19 | #C2:19 | Reserve | - | - | - |
| #C20 | #C2:20 | Reserve | - | - | - |
| #C21 | #C2:21 | Reserve | - | - | - |
| #C22 | #C2:22 | Reserve | - | - | - |
| #C23 | #C2:23 | Seat belt reminder sensor, passenger seat | - | Ulow /Ubat | - |
| #C24 | #C2:24 | Lock unit tailgate | Ulow /Ubat | Ulow /Ubat | Open signal |
| #C25 | #C2:25 | Reserve | - | - | - |
| #C26 | #C2:26 | Brake lamp switch | Ulow | Ulow /Ubat | - |
| #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 unit boot lid: V70 | |
| #C31 | #C2:31 | Reserve | - | - | - |
| #C32 | #C2:32 | Reserve | - | - | - |
| #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 = 0-5 V with ignition on | Spare on vehicles before model year 2012 |
| #C36 | #C2:36 | Reserve | - | - | - |
| #C37 | #C2:37 | Reserve | - | - | - |
| #C38 | #C2:38 | Reserve | - | - | - |
| #C39 | #C2:39 | Lock unit tailgate | - | - | Lock signal, only V70 Spare from structure week 2010 46. |
| #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 | Reserve | - | - | - |
| #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 | Emergency brake light, power supply | Ubat /Ulow | Ubat /Ulow | Certain markets only |
| #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 | Rear fog lamp, 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 both left and right brake light is connected to #C2:59. |
| #C60 | #C2:60 | Right brake light | Ubat /Ulow | Ubat /Ulow | Spare on V70. |
| #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 luggage compartment, switch closing tailgate, lock unit tailgate, control unit electrically operated passenger seat (PSM) and switch power window driver door, voltage feed | Ulow | Ubat | - |
| #D11 | #C2:71 | Lock unit tailgate, locking | Ubat /Ulow | Ubat /Ulow | Only V70 Spare from structure week 201046. |
| #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 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 (FP), 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 | Communication CAN_H high speed network | During communication the voltage is 2.0 - 3.5 V | HS CAN | |
| #E7 | #C3:7 | Communication CAN_L high speed network | During communication the voltage is 1.5 - 2.5 V | HS CAN | |
| #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 | Communication LIN, Remote Receiver Module (RRX/RKE) | The voltage is 0 V - Ubat during communication | Remote receiver (RKE) for vehicles with keyless entry (KVM) Remote receiver (RRX) for vehicles without keyless entry (KVM) |
|
| #E45 | #C3:45 | Reserve | - | - | - |
| #E46 | #C3:46 | Communication LIN bus 3 | During communication the voltage is 0 V - Ubat | Steering column lock module (SCL) | |
| #E47 | #C3:47 | Communication LIN bus 3 | During communication the voltage is 0 V - Ubat | Start control module (SCU) For V70, Ignition antenna unit (IAU) |
|
| #E48 | #C3:48 | Communication LIN bus 1 | During communication the voltage is 0 V - Ubat | Steering wheel module (SWM) | |
| #E49 | #C3:49 | Communication 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 | Lighting instep front right and left, voltage feed | Ulow /Ubat | Ulow /Ubat | For V70 from model year 2012 the LED lighting can also be lit when driving in the dark. |
| #E56 | #C3:56 | Lighting glove compartment, | 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 | - |
| #F6 | #C3:66 | Supplemental restraint system module (SRS), voltage feed | Ulow | Ubat | - |
| #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 | Safety lighting, lighting ashtray, symbol lighting parking brake, voltage feed | Ubat -Ulow/ /Ulow | Ubat -Ulow | V70 also voltage feed for symbol lighting, rear headphone socket. |
| #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 module (SCU) For V70, Ignition antenna unit (IAU) |
| #F15 | #C3:75 | Sun roof module (SRM), voltage feed | Ubat | Ubat | - |
| #F16 | #C3:76 | Relay, steering column lock module (SCL), power supply | Ubat /Ulow | Ubat /Ulow | - |
| 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 | Ubat | Ulow /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 | Communication LIN bus 2 | During communication the voltage is UV low - Ubat | Movement sensor (IMS) | |
| #B30 | #C4:10 | Communication 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 | - |
| #B32 | #C4:12 | Reserve | - | - | - |
| #B33 | #C4:13 | Reserve | - | - | - |
| #B34 | #C4:14 | Interior lighting roof, voltage feed | - | Ulow /Ubat | - |
| #B35 | #C4:15 | Reserve | - | - | - |
| #B36 | #C4:16 | Reserve | - | - | - |
| #B37 | #C4:17 | Reserve | - | - | - |
| #B38 | #C4:18 | Rain sensor (RMS), make-up mirror lighting, rear roof light, front roof light, voltage feed | Ulow | Ubat | - |
| #B39 | #C4:19 | Remote receiver (RKE, RRX), voltage feed | Ubat | Ubat | Remote receiver (RKE) for vehicles without keyless entry (KVM). Remote receiver (RRX) for vehicles with keyless entry (KVM). |
| #B40 | #C4:20 | Movement sensor (IMS), 30-power supply | Ubat | Ubat | - |