LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2016 >> S80 T5 >> Repair and Diagnosis (Single Page) >> Restraints >> Passive Restraints >> Interior Equipment & Supplemental Restraint Systems - Specifications, Electrical/Electronic >> Signal Specification, Supplemental Restraint System Module (SRS) >> Signal Specification, Supplemental Restraint System Module (SRS) [2013-2016]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Signal Specification, Supplemental Restraint System Module (SRS) [2013-2016]

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    
GLL172907Courtesy of VOLVO CARS CORPORATION
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 seat belt tensioner (-) (Only certain markets) Monitoring signal at normal position, Ignition pulse on activation. -
#B16 #C1:16 Passenger's lap seat belt tensioner (+) (Only certain markets) Monitoring signal at normal position, Ignition pulse on activation. -
#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 Reserve - -
#B26 #C1:26 Reserve - -
#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 Reserve - -
#B44 #C1:44 Reserve - -
#B45 #C1:45 Reserve - -
#B46 #C1:46 Reserve - -
#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 Right pressure sensor (+) (USA/CDN only) - -
#B56 #C1:56 Right pressure sensor, signal ground (USA/CDN only) Ulow -
#B57 #C1:57 Left pressure sensor, signal ground (USA/CDN only) Ulow -
#B58 #C1:58 Left pressure sensor (+) (USA/CDN only) - -
#B59 #C1:59 Reserve - -
#B60 #C1:60 Reserve - -
#C1 #C1:61 Reserve - -
#C2 #C1:62 Reserve - -
#C3 #C1:63 Reserve - -
#C4 #C1:64 Reserve - -
#C5 #C1:65 Reserve - -
#C6 #C1:66 Reserve - -
#C7 #C1:67 Reserve - -
#C8 #C1:68 Reserve - -
- #C1:69 Reserve - -
#C10 #C1:70 Reserve - -
#C11 #C1:71 Reserve - -
#C12 #C1:72 Sensor-CAN L (only USA/CDN) During communication U = 1.0 - 2.5 V -
#C13 #C1:73 Sensor-CAN H (only USA/CDN) 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.
-
GLL172908Courtesy of VOLVO CARS CORPORATION
CONNECTOR C2

Breakout box terminal  Control module terminal  Signal type  Ignition on (ignition position II or III)  Miscellaneous 
#A1 #C2:1 Collision Normal, f = 10 Hz, PWM = 50 %.
Impact registered, f = 250 Hz, PWM = 50 %, for up to 1 - 5 seconds.
-
#A2 #C2:2 Passenger airbag, stage 1 (-) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A3 #C2:3 Passenger airbag, stage 1 (+) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A4 #C2:4 Passenger airbag, stage 2 (+) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A5 #C2:5 Passenger airbag, stage 2 (-) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A6 #C2:6 Passenger airbag stage 3 (-) (USA/CDN only) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A7 #C2:7 Passenger airbag stage 3 (+) (USA/CDN only) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A8 #C2:8 Driver airbag, stage 1 (+) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A9 #C2:9 Driver airbag, stage 1 (-) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A10 #C2:10 Driver airbag, stage 2 (-) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A11 #C2:11 Driver airbag, stage 2 (+) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A12 #C2:12 Reserve - -
#A13 #C2:13 Reserve - -
#A14 #C2:14 Adaptive steering column (-) (only USA/CDN) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A15 #C2:15 Adaptive steering column (+) (only USA/CDN) Monitoring signal during normal mode.
Ignition pulse upon activation.
-
#A16 #C2:16 Reserve - -
#A17 #C2:17 Reserve - -
#A18 #C2:18 Reserve - -
#A19 #C2:19 Reserve - -
- #C2:20 Reserve - -
- #C2:21 Reserve - -
#A22 #C2:22 Warning light activated passenger airbag (PAE) (+) Activated light:
Pulse-width modulated signal, 0 - 12 V
Day mode: 12 V
Night mode: 3-4 V
-
- #C2:23 Reserve - -
#A24 #C2:24 Front impact sensor right front, signal ground Ulow -
#A25 #C2:25 Front impact sensor right front (+) - -
- #C2:26 Reserve - -
- #C2:27 Reserve - -
- #C2:28 Reserve - -
- #C2:29 Reserve - -
- #C2:30 Reserve - -
#A31 #C2:31 Reserve - -
- #C2:32 Reserve   -
- #C2:33 Reserve - -
#A34 #C2:34 Front passenger airbag switch, sensor A (+) (not USA/CDN) - -
#A35 #C2:35 Front passenger airbag switch, sensor B (+) (not USA/CDN) - -
#A36 #C2:36 Front passenger airbag switch, signal ground (not USA/CDN) - -
- #C2:37 Reserve - -
- #C2:38 Reserve - -
- #C2:39 Reserve - -
- #C2:40 Reserve - -
- #C2:41 Reserve - -
#A42 #C2:42 Power supply, supplemental restraint system module (SRS), 15-feed U = Ubat -
#A43 #C2:43 Power supply, supplemental restraint system module (SRS), 15-feed U = Ubat -
- #C2:44 Reserve - -
#A45 #C2:45 PAD lamp (+) Activated light:
Pulse-width modulated signal, 0 - 12 V
Day mode 12 V
Night mode 3 - 4 V
-
- #C2:46 Reserve - -
- #C2:47 Reserve   -
- #C2:48 Reserve - -
#A49 #C2:49 Front impact sensor front left, signal ground Ulow -
#A50 #C2:50 Front collision sensor left front (+) - -
- #C2:51 Reserve - -
- #C2:52 Reserve - -