Wiring Diagram Cluster
2002 Volvo S40 Body Electrical Wiring Diagram
Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.
Matched Diagrams
48
Variant Used
S40 L4-1.9L Turbo VIN 29 B4204T3
Total Vehicle Diagrams
10022
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 2002 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.
B1318: Battery Voltage Low →Top Body Electrical Diagram Paths
1.Horn — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen2.Backup Lamp — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen3.Courtesy Lamp — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen4.Fog/Driving Lamp — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen5.Hazard Warning Lamps — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen6.Headlamp — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen7.Horn — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen8.Locks > Power Locks — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateBody and FrameOpen9.Mirrors — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateBody and FrameOpen10.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateBody and FrameOpen11.Seats — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateBody and FrameOpen12.Turn Signals — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateLighting and HornsOpen13.Air Bag Systems — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateRestraints and Safety SystemsOpen14.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateBrakes and Traction ControlOpen15.Antitheft and Alarm Systems — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateAccessories and Optional EquipmentOpen16.Charging System — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateStarting and ChargingOpen17.Components > Central Locking, Trunk Lid/TailgateGeneralOpen18.Cooling System > Radiator Cooling Fan — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateEngine, Cooling and ExhaustOpen19.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateCruise ControlOpen20.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateGeneralOpen21.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateHeating and Air ConditioningOpen22.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateInstrument Panel, Gauges and Warning IndicatorsOpen23.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgatePower and Ground DistributionOpen24.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgatePowertrain ManagementOpen25.Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateWiper and Washer SystemsOpen26.Heated Glass Element — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateWindows and GlassOpen27.Ignition System > Sensors and Switches - Ignition System > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgatePowertrain ManagementOpen28.Power and Ground Distribution — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateStarting and ChargingOpen29.Sensors and Switches - Powertrain Management > Sensors and Switches - Ignition System > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgatePowertrain ManagementOpen30.Sensors and Switches - Powertrain Management > Sensors and Switches - Ignition System > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateSensors and SwitchesOpen31.Sensors and Switches - Starting and Charging > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateSensors and SwitchesOpen32.Sensors and Switches - Starting and Charging > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateStarting and ChargingOpen33.Starting System — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateStarting and ChargingOpen34.Starting System > Ignition Switch — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateStarting and ChargingOpen35.Windows — Diagram Information and Instructions > Diagram Legend > 6/32 Central Locking, Trunk Lid/TailgateWindows and GlassOpen36.Backup Lamp — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen37.Courtesy Lamp — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen38.Fog/Driving Lamp — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen39.Hazard Warning Lamps — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen40.Headlamp — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateLighting and HornsOpen41.Horn — Diagram Information and Instructions > Diagram Legend > 2/32 Relay, Fuel Throttle BodyLighting and HornsOpen42.Horn — Diagram Information and Instructions > Diagram Legend > 3/24 Switch, Central Locking, Driver's DoorLighting and HornsOpen43.Horn — Diagram Information and Instructions > Diagram Legend > 3/37 Switch, Central Locking, Passenger DoorLighting and HornsOpen44.Horn — Diagram Information and Instructions > Diagram Legend > 3/54 Switch, Driver's Door LockLighting and HornsOpen45.Horn — Diagram Information and Instructions > Diagram Legend > 6/28-6/31 Central LockingLighting and HornsOpen46.Horn — Diagram Information and Instructions > Diagram Legend > 6/36-6/39 Central Locking With DeadlocksLighting and HornsOpen47.Horn — Diagram Information and Instructions > Diagram Legend > 6/56 Engine, Fuel Throttle BodyLighting and HornsOpen48.Locks > Power Locks — Diagram Information and Instructions > Diagram Legend > 10/34 Lamp Housing, Trunk Lid/TailgateBody and FrameOpen
Exact Vehicle Hub
Browse →Likely Trouble Codes for This System
Browse →More S40 Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramFuel Pump Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramA/C & Heater Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramEngine Management Wiring Diagram
Same System, Other Vehicles
2010 Toyota Matrix AWD Body Electrical Wiring Diagram2010 Toyota Matrix FWD Body Electrical Wiring Diagram2010 Toyota Prius Body Electrical Wiring Diagram2010 Toyota Venza AWD Body Electrical Wiring Diagram2010 Toyota Venza FWD Body Electrical Wiring Diagram2012 Toyota Camry Body Electrical Wiring Diagram2012 Toyota Prius PHV Body Electrical Wiring Diagram2012 Toyota Prius V Body Electrical Wiring Diagram