Wiring Diagram Cluster

1989 Audi 100 Sedan 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

100 Sedan L5-2309cc 2.3L SOHC (NF)

Total Vehicle Diagrams

712

🤖 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 1989 Audi 100 Sedan hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub →
1989 Audi 100 Sedan Backrest Sender Unit, Adjust

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.

1989 Audi 100 Sedan Backrest Sender Unit, Adjust →
1989 Audi 100 Sedan Description and Operation1989 Audi 100 Sedan Description and Operation1989 Audi 100 Sedan Description and Operation

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.Doors, Hood and Trunk > Doors > Front Door — Electrical Diagrams > Production From Nov. 1988 > Central LockingBody and FrameOpen2.Doors, Hood and Trunk > Doors > Front Door — Electrical Diagrams > Production Up to Nov. 1988 > Central LockingBody and FrameOpen3.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen4.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > How to Find the Correct Wiring Diagram, Important Stuff !Body and FrameOpen5.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > How to Read Displayed Page of Wiring Diagram, Important Stuff !Body and FrameOpen6.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > Symbols Used In Wiring DiagramsBody and FrameOpen7.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > Understanding Track Style Wiring Diagrams, Important Stuff !Body and FrameOpen8.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen9.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > Wire Size ConversionBody and FrameOpen10.Doors, Hood and Trunk > Doors > Front Door — Diagram Information and Instructions > Wiring Diagram Circuit IdentificationBody and FrameOpen11.Doors, Hood and Trunk > Doors > Front Door — Electrical Diagrams > Production From Nov. 1988 > Heating ElementsBody and FrameOpen12.Doors, Hood and Trunk > Doors > Front Door — Electrical Diagrams > Production Up to Nov. 1988 > Heating ElementsBody and FrameOpen13.Horn — Diagram Information and Instructions > How to Find the Correct Wiring Diagram, Important Stuff !Lighting and HornsOpen14.Horn — Diagram Information and Instructions > How to Read Displayed Page of Wiring Diagram, Important Stuff !Lighting and HornsOpen15.Horn — Diagram Information and Instructions > Symbols Used In Wiring DiagramsLighting and HornsOpen16.Horn — Diagram Information and Instructions > Understanding Track Style Wiring Diagrams, Important Stuff !Lighting and HornsOpen17.Horn — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen18.Horn — Diagram Information and Instructions > Wire Size ConversionLighting and HornsOpen19.Horn — Diagram Information and Instructions > Wiring Diagram Circuit IdentificationLighting and HornsOpen20.Horn — Electrical DiagramsLighting and HornsOpen21.Locks — Electrical Diagrams > Central Locking SystemBody and FrameOpen22.Locks > Door Locks — DiagramBody and FrameOpen23.Electrical Diagrams > Antitheft and Alarm Systems > Alarm HornGeneralOpen24.Electrical Diagrams > Front Door > Production From Nov. 1988 > Central LockingGeneralOpen25.Electrical Diagrams > Front Door > Production Up to Nov. 1988 > Central LockingGeneralOpen26.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen27.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen28.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Glove Box LampGeneralOpen29.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System DiagramGeneralOpen30.Electrical Diagrams > Lighting and Horns > Dome LampGeneralOpen31.Electrical Diagrams > Lighting and Horns > Hazard Warning LampsGeneralOpen32.Electrical Diagrams > Lighting and Horns > HeadlampGeneralOpen33.Electrical Diagrams > Lighting and Horns > HornGeneralOpen34.Electrical Diagrams > Lighting and Horns > License Plate LampGeneralOpen35.Electrical Diagrams > Lighting and Horns > Map LightGeneralOpen36.Electrical Diagrams > Lighting and Horns > Marker LampGeneralOpen37.Electrical Diagrams > Lighting and Horns > Parking LampGeneralOpen38.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen39.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen40.Electrical Diagrams > Lighting and Horns > Turn SignalsGeneralOpen41.Electrical Diagrams > Lighting and Horns > Underhood LampGeneralOpen42.Electrical Diagrams > Lighting and Horns > Vanity LampGeneralOpen43.Electrical Diagrams > Locks > Door Lock HeaterGeneralOpen44.Electrical Diagrams > Locks > System Diagram > Central Locking SystemGeneralOpen45.Exploded Views > Door LocksGeneralOpen46.Vacuum and Vapor Hose Diagrams > Power Door Lock ActuatorGeneralOpen47.Courtesy Lamp — Diagram Information and Instructions > How to Find the Correct Wiring Diagram, Important Stuff !Lighting and HornsOpen48.Courtesy Lamp — Diagram Information and Instructions > How to Read Displayed Page of Wiring Diagram, Important Stuff !Lighting and HornsOpen

Parts & Tools for This Job

Common parts shoppers buy for 1989 Audi 100 Sedan 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 →
1989 Audi 100-sedan Repair HubExact Vehicle · Backbone

Open the exact vehicle hub for this wiring page to move into repair, manual, and code clusters without leaving the 1989 Audi 100-sedan context.

OEM Manual Evidence

Browse →
1989 Audi 100 Sedan Backrest Sender Unit, AdjustOEM Manual

Backrest Sender Unit, Adjust — 1989 Audi 100 Sedan L5-2309cc 2.3L SOHC (NF) Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge...

1989 Audi 100 Sedan Description and OperationOEM Manual

Cabin Temperature Sensor / Switch: Description and Operation — 1989 Audi 100 Sedan L5-2309cc 2.3L SOHC (NF) Service Manual ~ LEMON Manuals...

1989 Audi 100 Sedan Description and OperationOEM Manual

Throttle Full Close Switch: Description and Operation — 1989 Audi 100 Sedan L5-2309cc 2.3L SOHC (NF) Service Manual ~ LEMON Manuals LEMON M...

1989 Audi 100 Sedan Description and OperationOEM Manual

Throttle Full Open Switch: Description and Operation — 1989 Audi 100 Sedan L5-2309cc 2.3L SOHC (NF) Service Manual ~ LEMON Manuals LEMON Ma...

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 100 Sedan Wiring Pages

Starter Wiring DiagramAlternator Wiring DiagramABS Brake Wiring DiagramA/C & Heater Wiring DiagramInstrument Cluster Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramEngine Management Wiring Diagram

Same System, Other Vehicles

1990 Toyota Supra Body Electrical Wiring Diagram1993 Toyota Camry Sedan Body Electrical Wiring Diagram1993 Toyota Camry Wagon Body Electrical Wiring Diagram1990 Honda Prelude Body Electrical Wiring Diagram1994 Toyota Camry Sedan 2-Door Body Electrical Wiring Diagram1994 Toyota Camry Sedan 4-Door Body Electrical Wiring Diagram1994 Toyota Celica Body Electrical Wiring Diagram1995 Toyota Camry Coupe 2-Door 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