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. In VIDA fault-tracing, the connector is numbered terminals #1A-#28A, #1B-#28B and #1C-#28C. This is because fault-tracing from previous model years has been reused. From model year 2003 inclusive, the connector is numbered from 1-84.
- Terminals #1A-#28A correspond to terminals #1-#28
- Terminals #1B-#28B correspond to terminals #29-#56
- Terminals #1C-#28C correspond to terminals #57-#84.
BREAKOUT BOX 1
| Breakout box | Control module terminal -02 | Control module terminal 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 position. Ignition pulse on deployment. |
| 4 | #4A | #4 | Front left side impact protection (SIPS) bag (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 5 | #5A | #5 | Front left seat belt tensioner (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 6 | #6A | #6 | Front left seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 7 | #7A | #7 | Signal ground | - |
| 8 | #8A | #8 | Side impact sensor, left front (-) | - |
| 9 | #9A | #9 | Side impact sensor, left front (+) | - |
| 10 | #10A | #10 | - | - |
| 11 | #11A | #11 | Seat belt tensioner 3rd row left (-) |
Monitoring signal at normal position. Ignition pulse on deployment. |
| 12 | #12A | #12 | Seat belt tensioner 3rd row left (+) |
Monitoring signal at normal position. Ignition pulse on deployment. |
| 13 | #13A | #13 | Inflatable curtain left rear (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 14 | #14A | #14 | Inflatable curtain left rear (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 15 | #15A | #15 | Rear left seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 16 | #16A | #16 | Rear left seat belt tensioner (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 17 | #17A | #17 | - | - |
| 18 | #18A | #18 | - | - |
| 19 | #19A | #19 | Seat belt tensioner left front lap (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 20 | #20A | #20 | Seat belt tensioner left front lap (+) |
Monitoring signal at normal position. Ignition pulse on deployment. |
| 21 | #21A | #21 | Left inflatable curtain (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 22 | #22A | #22 | Left inflatable curtain (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 23 | #23A | #23 | - | - |
| 24 | #24A | #24 | - | - |
| 25 | #25A | #25 | Seat belt buckle left front (+) | - |
| 26 | #26A | #26 | Seat belt buckle left front (-) | - |
| 27 | #27A | #27 | Side impact sensor, left rear (-) | - |
| 28 | #28A | #28 | Side impact sensor, left rear (+) | - |
| 29 | #1B | #29 | Signal ground | - |
| 30 | #2B | #30 | Collision | Signal to the central electronic module (CEM) |
| 31 | #3B | #31 | Diagnostic production | - |
| 32 | #4B | #32 | Signal ground |
- |
| 33 | #5B | #33 | - |
- |
| 34 | #6B | #34 | - | - |
| 35 | #7B | #35 | Driver's airbag stage1 (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 36 | #8B | #36 | Driver's airbag stage1 (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 37 | #9B | #37 | Driver's airbag stage2 (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 38 | #10B | #38 | Driver's airbag stage 2 (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 39 | #11B | #39 | Passenger airbag, stage 1 (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 40 | #12B | #40 | Passenger airbag, stage 1 (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 41 | #13B | #41 | Passenger airbag, stage 2 (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 42 | #14B | #42 | Passenger airbag, stage 2 (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 43 | #15B | #43 | - | - |
| 44 | #16B | #44 | - | - |
| 45 | #17B | #45 | - | - |
| 46 | #18B | #46 | Front collision sensor left front (-) | - |
| 47 | #19B | #47 | Front collision sensor left front (+) | - |
| 48 | #20B | #48 | Front collision sensor right front (+) | - |
| 49 | #21B | #49 | Front collision sensor right front (-) | - |
| 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-supply voltage from the ignition switch (ignition switch pos. I and II) | Battery voltage approximately 12 V |
| 56 | #28B | #56 | 15-supply voltage (ignition switch pos. II and III) | Battery voltage approximately 12 V |
| 57 | #1C | #57 | Signal ground | - |
| 58 | #2C | #58 | Signal ground | - |
| 59 | #3C | #59 | Front right side impact protection (SIPS) bag (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 60 | #4C | #60 | Front right side impact protection (SIPS) bag (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
BREAKOUT BOX 2
| Breakout box | Control module terminal -02 | Control module terminal 03- | Function | Other |
| 1 | #5C | #61 | Front right seat belt tensioner (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 2 | #6C | #62 | Front right seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 3 | #7C | #63 | Signal ground | - |
| 4 | #8C | #64 | Side impact sensor, right front (-) | - |
| 5 | #9C | #65 | Side impact sensor, right front (+) | - |
| 6 | #10C | #66 | - | - |
| 7 | #11C | #67 | Inflatable curtain right rear (-) | Monitoring signal at normal position. Ignition pulse on deployment |
| 8 | #12C | #68 | Inflatable curtain right rear (+) | - |
| 9 | #13C | #69 | Seat belt tensioner 3rd row right (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 10 | #14C | #70 | Seat belt tensioner 3rd row right (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 11 | #15C | #71 | Rear right seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 12 | #16C | #72 | Rear right seat belt tensioner (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 13 | #17C | #73 | - | - |
| 14 | #18C | #74 | - | - |
| 15 | #19C | #75 | Seat belt tensioner right front lap (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 16 | #20C | #76 | Seat belt tensioner right front lap (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 17 | #21C | #77 | Right inflatable curtain (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 18 | #22C | #78 | Right inflatable curtain (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 19 | #23C | #79 | Rear center seat belt tensioner (-) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 20 | #24C | #80 | Rear center seat belt tensioner (+) | Monitoring signal at normal position. Ignition pulse on deployment. |
| 21 | #25C | #81 | Seat belt buckle right front (+) | - |
| 22 | #26C | #82 | Seat belt buckle right front (-) | - |
| 23 | #27C | #83 | Side impact sensor, right rear (-) | - |
| 24 | #28C | #84 | Side impact sensor, right rear (+) | - |