Wiring Diagram Cluster

2004 BMW Z4 Airbag SRS Wiring Diagram

Find airbag module wiring, crash sensor circuits, seatbelt pretensioner paths, and SRS warning light schematics.

Matched Diagrams

48

Variant Used

Z4 (E85) L6-2.5L (M54)

Total Vehicle Diagrams

3953

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.

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Vehicle Repair Hub

Step out of raw diagrams and into the full 2004 BMW Z4 hub with repairs, specs, codes, and other systems already tied to this car.

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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.

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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 β†’

Top Airbag SRS Diagram Paths

1.Components > A_Control Modules, Assemblies > A173a Airbag Sensor, B-Pillar, Driver's Side (Z Series)GeneralOpen2.Components > A_Control Modules, Assemblies > A174a Airbag Sensor, B-Pillar, Passenger's Side (Z Series)GeneralOpen3.Components > B_Sensors, Transducers > B10508a Front Airbag Sensor, Driver's Side (ACSM Crash Safety Module)GeneralOpen4.Components > B_Sensors, Transducers > B10509a Front Airbag Sensor, Passenger's Side (ACSM Crash Safety Module)GeneralOpen5.Components > G_Power Supply > G14b Side airbag inflator assembly, driverGeneralOpen6.Components > G_Power Supply > G15b Side airbag inflator assembly, passengerGeneralOpen7.Components > G_Power Supply > G30 Generator, Knee Airbag, Front LeftGeneralOpen8.Components > G_Power Supply > G31 Generator, Knee Airbag, Front RightGeneralOpen9.Components > G_Power Supply > G5 Inflator Assembly, Driver AirbagGeneralOpen10.Components > G_Power Supply > G6 Inflator assemblies, passenger's airbagGeneralOpen11.Components > H_Signals/Indicator Devices (Visual, Acoustic) > H23 Airbag Indicator LightGeneralOpen12.Components > S_Switches, Coding Plugs > S559 Switch, Passenger Airbag DeactivationGeneralOpen13.Connector Views > Restraints and Safety Systems > A113 Seat Occupancy RecognitionGeneralOpen14.Connector Views > Restraints and Safety Systems > A150a Safety and Information Module > A150a Safety and Information Module (Z Series_Z4-E85/E86 With USA_LHD as of 2003_09)GeneralOpen15.Connector Views > Restraints and Safety Systems > A150a Safety and Information Module > A150a Safety and Information Module (Z Series_Z4-E85/E86 With USA_LHD up to 2003_09)GeneralOpen16.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Deactivation, Passenger > Passenger Airbag DeactivationGeneralOpen17.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Deactivation, Passenger > Safety and Information Module, SupplyGeneralOpen18.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Front > Airbag Trigger, Driver/PassengerGeneralOpen19.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Front > Left > Safety and Information Module, SupplyGeneralOpen20.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Front > Left > Satellite, B-Pillar, Left, SupplyGeneralOpen21.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Front > Right > Safety and Information Module, SupplyGeneralOpen22.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Front > Right > Satellite, B-Pillar, Right, SupplyGeneralOpen23.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Knee Area, Front (USA_LHD) > Airbag Trigger, Knee AreaGeneralOpen24.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Knee Area, Front (USA_LHD) > Left > Safety and Information Module, SupplyGeneralOpen25.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Knee Area, Front (USA_LHD) > Left > Satellite, B-Pillar, Left, SupplyGeneralOpen26.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Knee Area, Front (USA_LHD) > Right > Safety and Information Module, SupplyGeneralOpen27.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Knee Area, Front (USA_LHD) > Right > Satellite, B-Pillar, Right, SupplyGeneralOpen28.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Airbag Trigger, Thorax AreaGeneralOpen29.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Left > Safety and Information Module, SupplyGeneralOpen30.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Left > Satellite, B-Pillar, Left, SupplyGeneralOpen31.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Left > Satellite, Door, Front Left, Supply (USA_LHD)GeneralOpen32.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Right > Safety and Information Module, SupplyGeneralOpen33.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Right > Satellite, B-Pillar, Right, SupplyGeneralOpen34.Electrical Diagrams > Body > Safety Functions (Z Series_Z4-E85/E86 Up to 01/06) > Airbag Trigger > Thorax Area > Right > Satellite, Door, Front Right, Supply (USA_LHD)GeneralOpen35.Electrical Diagrams > Restraints and Safety Systems > Air BagGeneralOpen36.Electrical Diagrams > Restraints and Safety Systems > Air Bag Control ModuleGeneralOpen37.Electrical Diagrams > Restraints and Safety Systems > Impact SensorGeneralOpen38.Electrical Diagrams > Restraints and Safety Systems > System DiagramGeneralOpen39.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Component ID (General List) > Part 1 ARestraints and Safety SystemsOpen40.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Component ID (General List) > Part 2 BRestraints and Safety SystemsOpen41.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Component ID (General List) > Part 3 C-GRestraints and Safety SystemsOpen42.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Component ID (General List) > Part 4 H-MRestraints and Safety SystemsOpen43.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Component ID (General List) > Part 5 N-ZRestraints and Safety SystemsOpen44.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Signal Glossary > Signal Names For LightsRestraints and Safety SystemsOpen45.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Signal Glossary > Signal Names For Positive/Ground Connections > 30< 46 Term. 30 To 87Restraints and Safety SystemsOpen46.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Signal Glossary > Signal Names For Positive/Ground Connections > 5V To 30< 45 Term. 30Restraints and Safety SystemsOpen47.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Signal Glossary > Signal Names With ARestraints and Safety SystemsOpen48.Air Bag Systems > Air Bag β€” Diagram Information and Instructions > Signal Glossary > Signal Names With BRestraints and Safety SystemsOpen