Signal Specification, Supplemental Restraint System Module (SRS)
General
All the values indicated below are only described values, as the power supply is not permitted when the breakout box is connected.
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 in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds (s) |
| PWM = | Pulse-width modulation |
CONNECTOR C1
| Breakout box terminal | Control module terminal | Signal type | Ignition on (ignition position II or III) | Miscellaneous |
|---|---|---|---|---|
| #B1 | #C1:1 | Belt tensioner, rear left (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B2 | #C1:2 | Belt tensioner, rear left (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B3 | #C1:3 | Center rear belt tensioner (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B4 | #C1:4 | Center rear belt tensioner (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B5 | #C1:5 | Rear right seat belt tensioner (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B6 | #C1:6 | Rear right seat belt tensioner (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B7 | #C1:7 | Left inflatable curtain (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B8 | #C1:8 | Left inflatable curtain (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B9 | #C1:9 | Right inflatable curtain (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B10 | #C1:10 | Right inflatable curtain (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B11 | #C1:11 | Front passenger belt tensioner (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B12 | #C1:12 | Front passenger belt tensioner (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B13 | #C1:13 | Driver's seat belt tensioner (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B14 | #C1:14 | Driver's seat belt tensioner (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B15 | #C1:15 | Passenger's lap seatbelt tensioner (-) | Monitoring signal at normal position, Ignition pulse on activation. | Only XC60. Only certain markets. |
| #B16 | #C1:16 | Passenger's lap seatbelt tensioner (+) | Monitoring signal at normal position, Ignition pulse on activation. | Only XC60. Only certain markets. |
| #B17 | #C1:17 | Driver's lap seat belt tensioner (+) (Only certain markets) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B18 | #C1:18 | Driver's lap seat belt tensioner (-) (Only certain markets) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B19 | #C1:19 | Adaptive front passenger belt force limiter (-) (USA/CDN only) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B20 | #C1:20 | Adaptive front passenger belt force limiter (+) (USA/CDN only) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B21 | #C1:21 | Adaptive driver's seat belt force limiter (+) (only USA/CDN) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B22 | #C1:22 | Adaptive driver's seat belt force limiter (-) (Only USA/CDN) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B23 | #C1:23 | Front left side impact protection (SIPS) bag (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B24 | #C1:24 | Front left side impact protection (SIPS) bag (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #B25 | #C1:25 | - | - | - |
| #B26 | #C1:26 | - | - | - |
| #B27 | #C1:27 | CAN H | During communication U = 2.5 - 4.0 V. | - |
| #B28 | #C1:28 | CAN L | During communication U = 1.0 - 2.5 V. | - |
| #B29 | #C1:29 | Driver's seat position sensor, signal ground (USA/CDN only) | Ulow | - |
| #B30 | #C1:30 | Driver's seat position sensor (+) (Only USA/CDN) | - | - |
| #B31 | #C1:31 | Seat position sensor passenger front (+) (Only USA/CDN) | - | - |
| #B32 | #C1:32 | Passenger front seat position sensor, signal ground (Only USA/CDN) | Ulow | - |
| #B33 | #C1:33 | Passenger seat belt buckle, signal ground | Ulow | - |
| #B34 | #C1:34 | Passenger seat belt buckle (+) | - | - |
| #B35 | #C1:35 | Driver's seat belt buckle (+) | - | - |
| #B36 | #C1:36 | Driver's seat belt buckle, signal ground | Ulow | - |
| #B37 | #C1:37 | Rear left belt buckle, signal ground (certain markets only) | Ulow | - |
| #B38 | #C1:38 | Rear left belt buckle (+) (certain markets only) | - | - |
| #B39 | #C1:39 | Center rear belt buckle (+) (certain markets only) | - | - |
| #B40 | #C1:40 | Center rear belt buckle, signal ground (certain markets only) | Ulow | - |
| #B41 | #C1:41 | Rear right belt buckle, signal ground (certain markets only) | Ulow | - |
| #B42 | #C1:42 | Rear right belt buckle (+) (certain markets only) | - | - |
| #B43 | #C1:43 | Driver's seat belt (inertia) reel sensor passenger front (+) (Only USA/CDN) | - | - |
| #B44 | #C1:44 | Driver's seat belt (inertia) reel sensor passenger front, signal ground (Only USA/CDN) | Ulow | - |
| #B45 | #C1:45 | Driver's seat belt (inertia) reel sensor, signal ground (Only USA/CDN) | Ulow | - |
| #B46 | #C1:46 | Driver's seat belt (inertia) reel sensor (+) (Only USA/CDN) | - | - |
| #B47 | #C1:47 | Side impact sensor, right front (+) | - | - |
| #B48 | #C1:48 | Side impact sensor right front, signal ground | Ulow | - |
| #B49 | #C1:49 | Side impact sensor front left, signal ground | Ulow | - |
| #B50 | #C1:50 | Side impact sensor, left front (+) | - | - |
| #B51 | #C1:51 | Side impact sensor, right rear (+) | - | - |
| #B52 | #C1:52 | Side impact sensor rear right, signal ground | Ulow | - |
| #B53 | #C1:53 | Side impact sensor rear left, signal ground | Ulow | - |
| #B54 | #C1:54 | Side impact sensor, left rear (+) | - | - |
| #B55 | #C1:55 | Pressure sensor right (+) | - | Applies to the XC60 on all markets. On the S80 (07-)/V70 (08-)/XC70 (08-) only applies to USA/CDN. |
| #B56 | #C1:56 | Pressure sensor right, signal ground | Ulow | Applies to the XC60 on all markets. On the S80 (07-)/V70 (08-)/XC70 (08-) only applies to USA/CDN. |
| #B57 | #C1:57 | Pressure sensor left, signal ground | Ulow | Applies to the XC60 on all markets. On the S80 (07-)/V70 (08-)/XC70 (08-) only applies to USA/CDN. |
| #B58 | #C1:58 | Pressure sensor left (+) | - | Applies to the XC60 on all markets. On the S80 (07-)/V70 (08-)/XC70 (08-) only applies to USA/CDN. |
| #B59 | #C1:59 | - | - | - |
| #B60 | #C1:60 | - | - | - |
| #C1 | #C1:61 | - | - | - |
| #C2 | #C1:62 | - | - | - |
| #C3 | #C1:63 | - | - | - |
| #C4 | #C1:64 | - | - | - |
| #C5 | #C1:65 | - | - | - |
| #C6 | #C1:66 | - | - | - |
| #C7 | #C1:67 | - | - | - |
| #C8 | #C1:68 | - | - | - |
| #C9 | #C1:69 | - | - | - |
| #C10 | #C1:70 | - | - | - |
| #C11 | #C1:71 | - | - | - |
| #C12 | #C1:72 | Intern CAN_L (only USA/CDN for S80/V70/XC70 and all markets for XC60) | During communication U = 1.0 - 2.5 V. | - |
| #C13 | #C1:73 | Internal CAN_H (only USA/CDN for S80/V70/XC70 and all markets for XC60) | During communication U = 2.5 - 4.0 V. | - |
| #C14 | #C1:74 | Front right side impact protection (SIPS) bag (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #C15 | #C1:75 | Side airbag, front right (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
CONNECTOR C2
| Breakout box terminal | Control module terminal | Signal type | Ignition on (ignition position II or III) | Miscellaneous |
|---|---|---|---|---|
| - | #C2:1 | - | - | - |
| - | #C2:2 | Short-circuit rail, passenger airbag, stage 1 | - | Short-circuits terminals #C2:27 and #C2:28 when the connector is not connected to the control module. |
| - | #C2:3 | Short-circuit rail, passenger airbag, stage 1 | - | Short-circuits terminals #C2:27 and #C2:28 when the connector is not connected to the control module. |
| - | #C2:4 | Short-circuit rail, passenger airbag, stage 2 | - | Short-circuits terminals #C2:29 and #C2:30 when the connector is not connected to the control module. |
| - | #C2:5 | Short-circuit rail, passenger airbag, stage 2 | - | Short-circuits terminals #C2:29 and #C2:30 when the connector is not connected to the control module. |
| - | #C2:6 | - | - | - |
| - | #C2:7 | - | - | - |
| - | #C2:8 | Short-circuit rail, driver's airbag, stage 1 | - | Short-circuits terminals #C2:33 and #C2:34 when the connector is not connected to the control module. |
| - | #C2:9 | Short-circuit rail, driver's airbag, stage 1 | - | Short-circuits terminals #C2:33 and #C2:34 when the connector is not connected to the control module. |
| - | #C2:10 | Short-circuit rail, driver's airbag, stage 2 | - | Short-circuits terminals #C2:35 and #C2:36 when the connector is not connected to the control module. |
| - | #C2:11 | Short-circuit rail, driver's airbag, stage 2 | - | Short-circuits terminals #C2:35 and #C2:36 when the connector is not connected to the control module. |
| - | #C2:12 | - | - | - |
| - | #C2:13 | - | - | - |
| - | #C2:14 | - | - | - |
| - | #C2:15 | - | - | - |
| - | #C2:16 | - | - | - |
| - | #C2:17 | - | - | - |
| - | #C2:18 | - | - | - |
| - | #C2:19 | - | - | - |
| - | #C2:20 | - | - | - |
| - | #C2:21 | - | - | - |
| - | #C2:22 | - | - | - |
| - | #C2:23 | - | - | - |
| - | #C2:24 | - | - | - |
| - | #C2:25 | - | - | - |
| #A1 | #C2:26 | Collision | Normal, f = 10 Hz, PWM = 50 %. Impact registered, f = 250 Hz, PWM = 50 %, for up to 5 seconds. |
- |
| #A2 | #C2:27 | Passenger airbag, stage 1 (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A3 | #C2:28 | Passenger airbag, stage 1 (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A4 | #C2:29 | Passenger airbag, stage 2 (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A5 | #C2:30 | Passenger airbag, stage 2 (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A6 | #C2:31 | Passenger airbag stage 3 (-) (USA/CDN only) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A7 | #C2:32 | Passenger airbag stage 3 (+) (USA/CDN only) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A8 | #C2:33 | Driver airbag, stage 1 (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A9 | #C2:34 | Driver airbag, stage 1 (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A10 | #C2:35 | Driver airbag, stage 2 (-) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A11 | #C2:36 | Driver airbag, stage 2 (+) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A12 | #C2:37 | - | - | - |
| #A13 | #C2:38 | - | - | - |
| #A14 | #C2:39 | Adaptive steering column (-) (only USA/CDN) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A15 | #C2:40 | Adaptive steering column (+) (only USA/CDN) | Monitoring signal during normal mode. Ignition pulse upon activation. |
- |
| #A16 | #C2:41 | - | - | - |
| #A17 | #C2:42 | - | - | - |
| #A18 | #C2:43 | - | - | - |
| #A19 | #C2:44 | - | - | - |
| #A20 | #C2:45 | - | - | - |
| #A21 | #C2:46 | - | - | - |
| #A22 | #C2:47 | Warning light activated passenger airbag (PAE) (+) | Activated light: Pulse-width modulated signal, 0 - 12 V Day mode: 12 V Night mode: 3 - 4 V |
Applies to 2008- |
| #A23 | #C2:48 | - | - | - |
| #A24 | #C2:49 | Front impact sensor right front, signal ground | Ulow | Does not apply to the XC60. |
| #A25 | #C2:50 | Front impact sensor right front (+) | - | Does not apply to the XC60. |
| #A26 | #C2:51 | - | - | - |
| #A27 | #C2:52 | - | - | - |
| #A28 | #C2:53 | - | - | - |
| #A29 | #C2:54 | - | - | - |
| #A30 | #C2:55 | - | - | - |
| #A31 | #C2:56 | - | - | - |
| #A32 | #C2:57 | - | - | - |
| #A33 | #C2:58 | - | - | - |
| #A34 | #C2:59 | Front passenger airbag switch, sensor A (+) (not USA/CDN) | - | - |
| #A35 | #C2:60 | Front passenger airbag switch, sensor B (+) (not USA/CDN) | - | - |
| #A36 | #C2:61 | Front passenger airbag switch, signal ground (not USA/CDN) | - | - |
| #A37 | #C2:62 | - | - | - |
| #A38 | #C2:63 | - | - | - |
| #A39 | #C2:64 | - | - | - |
| #A40 | #C2:65 | - | - | - |
| #A41 | #C2:66 | - | - | - |
| #A42 | #C2:67 | Power supply, supplemental restraint system module (SRS), 15-feed | U = Ubat | - |
| #A43 | #C2:68 | Power supply, supplemental restraint system module (SRS), 15-feed | U = Ubat | - |
| #A44 | #C2:69 | - | - | - |
| #A45 | #C2:70 | PAD lamp (+) | Activated light: Pulse-width modulated signal, 0 - 12 V Day mode 12 V Night mode 3-4 V |
- |
| #A46 | #C2:71 | - | - | - |
| #A47 | #C2:72 | - | - | - |
| #A48 | #C2:73 | - | - | - |
| #A49 | #C2:74 | Front impact sensor front left, signal ground | Ulow | Does not apply to the XC60. |
| #A50 | #C2:75 | Front collision sensor left front (+) | - | Does not apply to the XC60. |