Wiring Diagram Cluster
2004 Volvo S40 Airbag SRS Wiring Diagram
Find airbag module wiring, crash sensor circuits, seatbelt pretensioner paths, and SRS warning light schematics.
Matched Diagrams
48
Variant Used
S40 L4-1.9L Turbo VIN 27 B4204T4
Total Vehicle Diagrams
14094
From Diagram To Fix
Use this wiring page as the jump point, not the dead end
Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.
Keep context
Vehicle Repair Hub
Step out of raw diagrams and into the full 2004 Volvo S40 hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →OEM source
Factory Manual Evidence
When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.
Open interactive browser →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
B0001: Driver Frontal Stage 1 Deployment Control →Top Airbag SRS Diagram Paths
1.Air Bag Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairRestraints and Safety SystemsOpen2.Air Bag Systems — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Restraints and Safety SystemsOpen3.Air Bag Systems — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitRestraints and Safety SystemsOpen4.Air Bag Systems — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitRestraints and Safety SystemsOpen5.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairBrakes and Traction ControlOpen6.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Brakes and Traction ControlOpen7.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitBrakes and Traction ControlOpen8.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitBrakes and Traction ControlOpen9.Antitheft and Alarm Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairAccessories and Optional EquipmentOpen10.Antitheft and Alarm Systems — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Accessories and Optional EquipmentOpen11.Antitheft and Alarm Systems — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitAccessories and Optional EquipmentOpen12.Antitheft and Alarm Systems — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitAccessories and Optional EquipmentOpen13.Antitheft and Alarm Systems > Keyless Entry — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairAccessories and Optional EquipmentOpen14.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Accessories and Optional EquipmentOpen15.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitAccessories and Optional EquipmentOpen16.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitAccessories and Optional EquipmentOpen17.Backup Lamp — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairLighting and HornsOpen18.Backup Lamp — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Lighting and HornsOpen19.Backup Lamp — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitLighting and HornsOpen20.Backup Lamp — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitLighting and HornsOpen21.Body Control Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairBody and FrameOpen22.Body Control Systems — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Body and FrameOpen23.Body Control Systems — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitBody and FrameOpen24.Body Control Systems — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitBody and FrameOpen25.Cellular Phone — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairAccessories and Optional EquipmentOpen26.Cellular Phone — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Accessories and Optional EquipmentOpen27.Cellular Phone — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitAccessories and Optional EquipmentOpen28.Cellular Phone — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitAccessories and Optional EquipmentOpen29.Collision Avoidance and Parking Assist Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairAccessories and Optional EquipmentOpen30.Collision Avoidance and Parking Assist Systems — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Accessories and Optional EquipmentOpen31.Collision Avoidance and Parking Assist Systems — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitAccessories and Optional EquipmentOpen32.Collision Avoidance and Parking Assist Systems — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitAccessories and Optional EquipmentOpen33.Components > Control Module, Supplemental Restraint System (SRS)GeneralOpen34.Components > Supplemental Restraint System (SRS), Driver's UnitGeneralOpen35.Components > Supplemental Restraint System (SRS), Passenger's UnitGeneralOpen36.Compressor HVAC — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairHeating and Air ConditioningOpen37.Computers and Control Systems — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairPowertrain ManagementOpen38.Cooling System > Radiator Cooling Fan — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairEngine, Cooling and ExhaustOpen39.Cooling System > Radiator Cooling Fan — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Engine, Cooling and ExhaustOpen40.Cooling System > Radiator Cooling Fan — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitEngine, Cooling and ExhaustOpen41.Cooling System > Radiator Cooling Fan — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitEngine, Cooling and ExhaustOpen42.Courtesy Lamp — Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairLighting and HornsOpen43.Courtesy Lamp — Diagram Information and Instructions > Diagram Legend > 4/4 Control Module, Supplemental Restraint System (SRS)Lighting and HornsOpen44.Courtesy Lamp — Diagram Information and Instructions > Diagram Legend > 8/3 Supplemental Restraint System (SRS), Driver's UnitLighting and HornsOpen45.Courtesy Lamp — Diagram Information and Instructions > Diagram Legend > 8/4 Supplemental Restraint System (SRS), Passenger UnitLighting and HornsOpen46.Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairCruise ControlOpen47.Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairGeneralOpen48.Diagnostic Aids > Connectors, Repair > Connector Supplemental Restraint System Module (SRS), RepairHeating and Air ConditioningOpen
Exact Vehicle Hub
Browse →Likely Trouble Codes for This System
Browse →More S40 Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramA/C & Heater Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramEngine Management Wiring DiagramBody Electrical Wiring Diagram
Same System, Other Vehicles
2010 Toyota Matrix AWD Airbag SRS Wiring Diagram2010 Toyota Matrix FWD Airbag SRS Wiring Diagram2010 Toyota Prius Airbag SRS Wiring Diagram2010 Toyota Venza AWD Airbag SRS Wiring Diagram2010 Toyota Venza FWD Airbag SRS Wiring Diagram2012 Toyota Camry Airbag SRS Wiring Diagram2012 Toyota Prius PHV Airbag SRS Wiring Diagram2012 Toyota Prius V Airbag SRS Wiring Diagram