SRS Unit Connector for Inputs and Outputs (2025)
| Connector Index |
|---|
| SRS unit connector A (43P) |
| SRS unit connector B (57P) |
SRS Unit Connector A (43P) (female terminals)
| Terminal Number | Terminal Name | Description |
|---|---|---|
| 1 | CDS | Collision detection signal output line |
| 2 | LA1- | Ground for the driver's airbag first inflator |
| 3 | LA1+ | Power source for the driver's airbag first inflator |
| 4 | LA2+ | Power source for the driver's airbag second inflator |
| 5 | LA2- | Ground for the driver's airbag second inflator |
| 6 | RA1- | Ground for the front passenger's airbag first inflator |
| 7 | RA1+ | Power source for the front passenger's airbag first inflator |
| 8 | RA2+ | Power source for the front passenger's airbag second inflator |
| 9 | RA2- | Ground for the front passenger's airbag second inflator |
| 10 | RA3+ | Power source for the front passenger's airbag active vent tether cutter |
| 11 | RA3- | Ground for the front passenger's airbag active vent tether cutter |
| 12 | LKA- | Ground for the driver's knee airbag inflator |
| 13 | LKA+ | Power source for the driver's knee airbag inflator |
| 14 | RKA+ | Power source for the front passenger's knee airbag inflator |
| 15 | RKA- | Ground for the front passenger's knee airbag inflator |
| 16 | Not Used | - |
| 17 | Not Used | - |
| 18 | Not Used | - |
| 19 | Not Used | - |
| 20 | Not Used | - |
| 21 | PGND | Ground circuit for the SRS unit |
| Terminal Number | Terminal Name | Description |
|---|---|---|
| 22 | Not Used | - |
| 23 | Not Used | - |
| 24 | Not Used | - |
| 25 | Not Used | - |
| 26 | RS1- | Ground for the right side impact pressure sensor |
| 27 | RS1+ | Power source for the right side impact pressure sensor |
| 28 | LS1- | Ground for the left side impact pressure sensor |
| 29 | LS1+ | Power source for the left side impact pressure sensor |
| 30 | OFF_PTT | Front passenger's airbag cutoff indicator output line |
| 31 | Not Used | - |
| 32 | LFS+ | Power source for the left front impact sensor |
| 33 | LFS- | Ground for the left front impact sensor |
| 34 | VF-CAN C_L | Sends and receives communication signal |
| 35 | VF-CAN C_H | Sends and receives communication signal |
| 36 | RFS- | Ground for the right front impact sensor |
| 37 | RFS+ | Power source for the right front impact sensor |
| 38 | VF-CAN B_L | Sends and receives communication signal |
| 39 | VF-CAN B_H | Sends and receives communication signal |
| 40 | L-LINE | Sends and receives scan tool signal (serial data) |
| 41 | IG1_SRS | SRS dedicated power (dedicated booster circuit) |
| 42 | Not Used | - |
| 43 | +B_SRS | Continuous power source |
SRS Unit Connector B (57P) (female terminals)
| Terminal Number | Terminal Name | Description |
|---|---|---|
| 1 | LR2PT+ | Power source for the left rear seat belt tensioner |
| 2 | LR2PT- | Ground for the left rear seat belt tensioner |
| Terminal Number | Terminal Name | Description |
|---|---|---|
| 3 | LSA- | Ground for the driver's side airbag inflator |
| 4 | LSA+ | Power source for the driver's side airbag inflator |
| 5 | RSA+ | Power source for the front passenger's side airbag inflator |
| 6 | RSA- | Ground for the front passenger's side airbag inflator |
| 7 | Not Used | - |
| 8 | Not Used | - |
| 9 | Not Used | - |
| 10 | Not Used | - |
| 11 | Not Used | - |
| 12 | Not Used | - |
| 13 | LRP+ | Power source for the driver's seat belt tensioner |
| 14 | LRP- | Ground for the driver's seat belt tensioner |
| 15 | RRP- | Ground for the front passenger's seat belt tensioner |
| 16 | RRP+ | Power source for the front passenger's seat belt tensioner |
| 17 | Not Used | - |
| 18 | Not Used | - |
| 19 | Not Used | - |
| 20 | Not Used | - |
| 21 | RR2PT+ | Power source for the right rear seat belt tensioner |
| 22 | RR2PT- | Ground for the right rear seat belt tensioner |
| 23 | Not Used | - |
| 24 | Not Used | - |
| 25 | LCA+ | Power source for the left side curtain airbag inflator |
| 26 | LCA- | Ground for the left side curtain airbag inflator |
| 27 | RCA- | Ground for the right side curtain airbag inflator |
| 28 | RCA+ | Power source for the right side curtain airbag inflator |
| 29 | SPS | Driver's seat position sensor input line |
| 30 | Not Used | - |
| 31 | Not Used | - |
| 32 | Not Used | - |
| 33 | Not Used | - |
| 34 | R2BC | Right rear second seat belt buckle switch input line |
| 35 | R3BC | Right rear third seat belt buckle switch input line |
| 36 | L2BC | Left rear second seat belt buckle switch input line |
| 37 | L3BC | Left rear third seat belt buckle switch input line |
| 38 | SWSS | Sends and receives communication signal with the front passenger's weight sensors |
| 39 | FRBC | Front passenger's seat belt buckle switch input line |
| 40 | SWS- | Ground for the front passenger's weight sensors |
| 41 | FLBC | Driver's seat belt buckle switch input line |
| 42 | SWS+ | Power source for the front passenger's weight sensors |
| 43 | Not Used | - |
| 44 | Not Used | - |
| 45 | Not Used | - |
| 46 | RS2- | Ground for the right side impact sensor (second) |
| 47 | RS2+ | Power source for the right side impact sensor (second) |
| 48 | LS2- | Ground for the left side impact sensor (second) |
| 49 | LS2+ | Power source for the left side impact sensor (second) |
| Terminal Number | Terminal Name | Description |
|---|---|---|
| 50 | Not Used | - |
| 51 | Not Used | - |
| 52 | Not Used | - |
| 53 | Not Used | - |
| 54 | Not Used | - |
| 55 | Not Used | - |
| 56 | Not Used | - |
| 57 | Not Used | - |