Wiring Diagram Cluster

1985 Mazda RX7 2RTR-1146cc 70 Body Electrical Wiring Diagram

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

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Matched Diagrams

28

Variant Used

RX7 2RTR-1146cc 70

Total Vehicle Diagrams

91

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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.

B1318: Battery Voltage Low →
U0140: Lost Communication with Body Control Module

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Lighting and Horns > Interior Lighting ModuleGeneralOpen2.Horn — Diagram Information and InstructionsLighting and HornsOpen3.Horn — Electrical DiagramsLighting and HornsOpen4.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen5.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen6.Electrical Diagrams > Lighting and Horns > Brake Light SwitchGeneralOpen7.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Glove Box LampGeneralOpen8.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System DiagramGeneralOpen9.Electrical Diagrams > Lighting and Horns > Hazard Warning Flasher > Hazard Flasher WiringGeneralOpen10.Electrical Diagrams > Lighting and Horns > Hazard Warning Flasher > Inter Connecting Diagram of Central Processing UnitGeneralOpen11.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp MotorGeneralOpen12.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Headlights & Illumination Wiring CircuitGeneralOpen13.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > WiringGeneralOpen14.Electrical Diagrams > Lighting and Horns > HornGeneralOpen15.Electrical Diagrams > Lighting and Horns > License Plate LampGeneralOpen16.Electrical Diagrams > Lighting and Horns > Marker LampGeneralOpen17.Electrical Diagrams > Lighting and Horns > System Diagram > Inter Connecting Diagram of Central Processing UnitGeneralOpen18.Electrical Diagrams > Lighting and Horns > System Diagram > Wiring DiagramGeneralOpen19.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen20.Electrical Diagrams > Lighting and Horns > Turn Signal FlasherGeneralOpen21.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen22.Courtesy Lamp — Electrical DiagramsLighting and HornsOpen23.Diagram Information and InstructionsLighting and HornsOpen24.Electrical Diagrams > Inter Connecting Diagram of Central Processing UnitLighting and HornsOpen25.Electrical Diagrams > Wiring DiagramLighting and HornsOpen26.Headlamp — Diagram Information and InstructionsLighting and HornsOpen27.Headlamp — Electrical Diagrams > Headlights & Illumination Wiring CircuitLighting and HornsOpen28.Headlamp — Electrical Diagrams > WiringLighting and HornsOpen

Parts & Tools for This Job

Common parts shoppers buy for 1985 Mazda RX7 2RTR-1146cc 70 Body Electrical.

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Assorted Fuses

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Relays

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Digital Multimeter

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Wire Repair Kit

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Likely Trouble Codes for This System

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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 RX7 2RTR-1146cc 70 Wiring Pages

Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramA/C & Heater Wiring DiagramInstrument Cluster Wiring DiagramCruise Control Wiring DiagramEngine Management Wiring Diagram

Same System, Other Vehicles

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