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.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
Two breakout boxes are required to take readings from the SRS control module.
NOTE:
The terminals for connector C are split between breakout boxes 1 and 2.
From model year 2003, the connectors are numbered 1-84.
- Terminals #1A-#28A correspond to terminals #1-#28
- Terminals #1B-#28B correspond to terminals #29-#56
- #1C-#28C correspond to #57-#84
BREAKOUT BOX 1
| Breakout box | Terminal control module -02 | Terminal control module 03- | Function | Other |
| 1 | #1A | #1 | Signal ground | - |
| 2 | #2A | #2 | Signal ground | - |
| 3 | #3A | #3 | Front left side impact protection (SIPS) bag (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 4 | #4A | #4 | Front left side impact protection (SIPS) bag (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 5 | #5A | #5 | Front left seat belt tensioner (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 6 | #6A | #6 | Belt tensioner, front left (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 7 | #7A | #7 | - | - |
| 8 | #8A | #8 | Side impact sensor, left front | - |
| 9 | #9A | #9 | Side impact sensor, left front | - |
| 10 | #10A | #10 | - | - |
| 11 | #11A | #11 | - | - |
| 12 | #12A | #12 | - | - |
| 13 | #13A | #13 | - | - |
| 14 | #14A | #14 | - | - |
| 15 | #15A | #15 | Belt tensioner, rear left (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 16 | #16A | #16 | Belt tensioner, rear left (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 17 | #17A | #17 | Rear center seat belt tensioner (+) | Monitoring signal at normal status. Ignition pulse on deployment. Replaced by pin 24C from VIN 116811. |
| 18 | #18A | #18 | Rear center seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. Replaced by pin 23C from chassis number 116811 inclusive. |
| 19 | #19A | #19 | - | - |
| 20 | #20A | #20 | - | - |
| 21 | #21A | #21 | Left inflatable curtain (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 22 | #22A | #22 | Left inflatable curtain (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 23 | #23A | #23 | - | - |
| 24 | #24A | #24 | - | - |
| 25 | #25A | #25 | - | - |
| 26 | #26A | #26 | - | - |
| 27 | #27A | #27 | Side impact sensor, rear left | - |
| 28 | #28A | #28 | Side impact sensor, rear left | - |
| 29 | #1B | #29 | - | - |
| 30 | #2B | #30 | Collision signal | Signal to the central electronic module (CEM) |
| 31 | #3B | #31 | - | - |
| 32 | #4B | #32 | SRS warning lamp | Activated |
| 33 | #5B | #33 | SRS warning lamp | Deactivated |
| 34 | #6B | #34 | Switch (+) | - |
| 35 | #7B | #35 | Driver airbag, stage 1 (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 36 | #8B | #36 | Driver airbag, stage 1 (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 37 | #9B | #37 | Driver airbag, stage 2 (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 38 | #10B | #38 | Driver airbag, stage 2 (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 39 | #11B | #39 | Passenger airbag, stage 1 (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 40 | #12B | #40 | Passenger airbag, stage 1 (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 41 | #13B | #41 | Passenger airbag, stage 2 (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 42 | #14B | #42 | Passenger airbag, stage 2 (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 43 | #15B | #43 | Switch (-) | - |
| 44 | #16B | #44 | - | - |
| 45 | #17B | #45 | - | - |
| 46 | #18B | #46 | - | - |
| 47 | #19B | #47 | - | - |
| 48 | #20B | #48 | - | - |
| 49 | #21B | #49 | - | - |
| 50 | #22B | #50 | - | - |
| 51 | #23B | #51 | Control modules communication cable (CAN H) | U=2.5-3.5 V |
| 52 | #24B | #52 | Control modules communication cable (CAN H) | U=2.5-3.5 V |
| 53 | #25B | #53 | Control modules communication cable (CAN L) | U=1.5-2.5 V |
| 54 | #26B | #54 | Control modules communication cable (CAN L) | U=1.5-2.5 V |
| 55 | #27B | #55 | X-feed voltage from the ignition switch (ignition switch pos. I and II) | Battery voltage approximately 12 V |
| 56 | #28B | #56 | 15-feed voltage (ignition switch pos. II and III) | Battery voltage approximately 12 V |
| 57 | #1C | #57 | - | - |
| 58 | #2C | #58 | - | - |
| 59 | #3C | #59 | Side airbag, front right (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 60 | #4C | #60 | Front right side impact protection (SIPS) bag (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
BREAKOUT BOX 2
| Breakout box | Terminal control module -02 | Terminal control module 03- | Function | Other |
| 1 | #5C | #61 | Front right seat belt tensioner (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 2 | #6C | #62 | Front right seat belt tensioner (-) | - |
| 3 | #7C | #63 | - | - |
| 4 | #8C | #64 | Side impact sensor, right front | - |
| 5 | #9C | #65 | Side impact sensor, right front | - |
| 6 | #10C | #66 | - | - |
| 7 | #11C | #67 | - | - |
| 8 | #12C | #68 | - | - |
| 9 | #13C | #69 | - | - |
| 10 | #14C | #70 | - | - |
| 11 | #15C | #71 | Rear right seat belt tensioner (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 12 | #16C | #72 | Rear right seat belt tensioner (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 13 | #17C | #73 | - | - |
| 14 | #18C | #74 | - | - |
| 15 | #19C | #75 | - | - |
| 16 | #20C | #76 | - | - |
| 17 | #21C | #77 | Right inflatable curtain (+) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 18 | #22C | #78 | Right inflatable curtain (-) | Monitoring signal at normal status. Ignition pulse on deployment. |
| 19 | #23C | #79 | Rear center seat belt tensioner (-) | Monitoring signal at normal status. Ignition pulse on deployment. Replaces pin 18A from VIN 116811. |
| 20 | #24C | #80 | Rear center seat belt tensioner (+) | Monitoring signal at normal status. Ignition pulse on deployment. Replaces pin 17A from VIN 116811. |
| 21 | #25C | #81 | - | - |
| 22 | #26C | #82 | - | - |
| 23 | #27C | #83 | Side impact sensor, right rear | - |
| 24 | #28C | #84 | Side impact sensor, right rear | - |