Wiring Diagram Cluster

2002 Mercedes Benz S 500 Body Electrical Wiring Diagram

Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.

Open Exact Vehicle Repair HubOpen Interactive Diagram BrowserBrowse All Wiring Diagrams

Matched Diagrams

48

Variant Used

S 500 (220.175) V8-5.0L (113.960)

Total Vehicle Diagrams

1405

🤖 Stuck on this electrical issue?

Wiring diagrams can be a maze. Ask Manuel, our factory-trained AI mechanic, to analyze this circuit or troubleshoot your specific symptom.

Ask AI Mechanic ➔

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 Mercedes Benz S 500 hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub →
2002 Mercedes Benz S 500 A L L Diagnostic Trouble Codes ( DTC )

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.

2002 Mercedes Benz S 500 A L L Diagnostic Trouble Codes ( DTC ) →
2002 Mercedes Benz S 500 External Pages2002 Mercedes Benz S 500 External Pages

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 →
U0140: Lost Communication with Body Control Module

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Lighting and Horns > System Diagram > Electrical Diagrams > Interior Lights PE82.20-U-2000SA, Sheet 1GeneralOpen2.Electrical Diagrams > Lighting and Horns > System Diagram > Electrical Diagrams > Interior Lights PE82.20-U-2000SB, Sheet 2GeneralOpen3.Electrical Diagrams > Lighting and Horns > System Diagram > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SAGeneralOpen4.Electrical Diagrams > Lighting and Horns > System Diagram > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SBGeneralOpen5.Electrical Diagrams > Lighting and Horns > System Diagram > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SCGeneralOpen6.Electrical Diagrams > Lighting and Horns > System Diagram > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SDGeneralOpen7.Body Control Systems — Diagram Information and Instructions > Abbreviations of Signal and Circuit DesignationsBody and FrameOpen8.Body Control Systems — Diagram Information and Instructions > Acronyms/Abbreviations For Wiring DiagramsBody and FrameOpen9.Body Control Systems — Diagram Information and Instructions > Explanations/Color CodesBody and FrameOpen10.Body Control Systems — Electrical Diagrams > Left Signal Acquisition and Actuation Module (SAM) PE54.21-U-2101SABody and FrameOpen11.Body Control Systems — Electrical Diagrams > Overhead Control Panel (OCP) PE54.21-U-2107SABody and FrameOpen12.Body Control Systems — Electrical Diagrams > Rear Signal Acquisition and Actuation Module (SAM) PE54.21-U-2103SABody and FrameOpen13.Body Control Systems — Electrical Diagrams > Right Signal Acquisition and Actuation Module (SAM) PE54.21-U-2102SABody and FrameOpen14.Body Control Systems — Electrical Diagrams > Special Vehicle Multifunction Control Module (SVMCM) PE54.21-U-2105SBBody and FrameOpen15.Body Control Systems — Electrical Diagrams > Upper Control Panel (UCP) PE54.21-U-2119SABody and FrameOpen16.Electrical Diagrams > Electrical Diagrams > Interior Lights PE82.20-U-2000SA, Sheet 1Lighting and HornsOpen17.Electrical Diagrams > Electrical Diagrams > Interior Lights PE82.20-U-2000SB, Sheet 2Lighting and HornsOpen18.Electrical Diagrams > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SALighting and HornsOpen19.Electrical Diagrams > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SBLighting and HornsOpen20.Electrical Diagrams > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SCLighting and HornsOpen21.Electrical Diagrams > Function Diagrams > Function Diagram For Interior Lights PE82.20-U-2050SDLighting and HornsOpen22.Electrical Diagrams > Function Diagrams > Function Diagram of Fanfare Horn System (FAN) PE54.35-U-2050SALighting and HornsOpen23.Horn — Diagram Information and Instructions > Abbreviations of Signal and Circuit DesignationsLighting and HornsOpen24.Horn — Diagram Information and Instructions > Acronyms/Abbreviations For Wiring DiagramsLighting and HornsOpen25.Horn — Diagram Information and Instructions > Explanations/Color CodesLighting and HornsOpen26.Horn — Electrical DiagramsLighting and HornsOpen27.Locks — Electrical Diagrams > Function Diagrams > Function Schematic For Central Locking (CL) PE80.20-U-2050SABody and FrameOpen28.Locks > Keyless Entry — Diagram Information and Instructions > Abbreviations of Signal and Circuit DesignationsBody and FrameOpen29.Locks > Keyless Entry — Diagram Information and Instructions > Acronyms/Abbreviations For Wiring DiagramsBody and FrameOpen30.Locks > Keyless Entry — Diagram Information and Instructions > Explanations/Color CodesBody and FrameOpen31.Locks > Keyless Entry — Electrical DiagramsBody and FrameOpen32.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Abbreviations of Signal and Circuit DesignationsAccessories and Optional EquipmentOpen33.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Acronyms/Abbreviations For Wiring DiagramsAccessories and Optional EquipmentOpen34.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Explanations/Color CodesAccessories and Optional EquipmentOpen35.Antitheft and Alarm Systems > Keyless Entry — Electrical DiagramsAccessories and Optional EquipmentOpen36.Components > By Component Designation > A - D > B24/3 - Left Front Body Acceleration SensorGeneralOpen37.Components > By Component Designation > A - D > B24/4 - Right Front Body Acceleration SensorGeneralOpen38.Components > By Component Designation > A - D > B24/6 - Right Rear Body Acceleration SensorGeneralOpen39.Components > By Component Designation > E - K > E18/1 - Trunk LampGeneralOpen40.Components > By Component Designation > E - K > H2 - Fanfare HornsGeneralOpen41.Components > By Component Designation > L - R > N51/2 - Active Body Control (ABC) Control ModuleGeneralOpen42.Components > By Component Designation > L - R > N72/1s6 - Interior Central Locking System SwitchGeneralOpen43.Components > By Component Designation > S - Z > S110s5 - Pneumatic Horn PushbuttonGeneralOpen44.Components > By Component Designation > S - Z > S20/1s6 - Trunk Release SwitchGeneralOpen45.Components > By Component Designation > S - Z > S86/1 - LF Door Lock Switch (CF)GeneralOpen46.Components > By Component Designation > S - Z > S88/2 - Trunk Lid Lock Switch (CF)GeneralOpen47.Components > By Component Designation > S - Z > S88/3 - Trunk Lid CA MicroswitchGeneralOpen48.Components > By Component Name > A - D > Active Body Control (ABC) Control Module - N51/2GeneralOpen

Parts & Tools for This Job

Common parts shoppers buy for 2002 Mercedes Benz S 500 Body Electrical.

part

Assorted Fuses

Shop Amazon→

part

Relays

Shop Amazon→

tool

Digital Multimeter

Shop Amazon→

tool

Wire Repair Kit

Shop Amazon→

As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Prices and availability may vary.

Exact Vehicle Hub

Browse →
2002 Mercedes-Benz S 500 Repair HubExact Vehicle · Backbone

Open the exact vehicle hub for this wiring page to move into repair, manual, and code clusters without leaving the 2002 Mercedes-Benz S 500 context.

OEM Manual Evidence

Browse →
2002 Mercedes Benz S 500 A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2002 Mercedes Benz SL 600 (129.076) V12-6.0L (120.983) Service Manual ~ LEMON Manuals LEMON Manual...

2002 Mercedes Benz S 500 External PagesOEM Manual

External Pages — 2002 Mercedes Benz SL500 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Mercedes Benz >...

2002 Mercedes Benz S 500 External PagesOEM Manual

External Pages — 2002 Mercedes Benz SL600 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Mercedes Benz >...

Likely Trouble Codes for This System

Browse →
B1318: Battery Voltage LowCode

Body/Electrical code commonly seen during body electrical diagnosis.

U0140: Lost Communication with Body Control ModuleCode

Network/Communication code commonly seen during body electrical diagnosis.

More S 500 Wiring Pages

Starter Wiring DiagramAlternator 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
Factory Service Tools

Turn This Into a Confident Next Step

Verify the likely fault first, then compare a quote before you approve expensive work.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Diagnostic ToolsCompare Repair QuoteQuote Shield Pro
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro