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Signal Specification

Fig 1: Control Module Terminals
GLL104108Courtesy of VOLVO CARS CORPORATION
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.
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 (+) -