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Honda Civic Turn Signal/Hazard Flasher Circuit Diagram

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This Honda Civic Turn Signal/Hazard Flasher Circuit was taken from a Honda Civic 2006 Service Manual. This circuit diagram may be applicable to the Honda Civic 2006 to 2011 (Eight Generation or Honda Civic FD).

The Left Turn Signal Lights are composed of the following lights:

  • Left Front Turn Signal Light
  • Left Rear Turn Signal Light
  • Left Side Turn Signal Light (or Left Mirror Turn Signal Light on some models)

In the same manner, the Right Turn Signal Lights are composed of the following lights:

  • Right Front Turn Signal Light
  • Right Rear Turn Signal Light
  • Right Side Turn Signal Light (or Right Mirror Turn Signal Light on some models)

As shown in the diagram below, the turn signal lights are controlled by the MICU (Multiplex Integrated Control Unit). The MICU is located on the back of the under-dash fuse/relay box. The MICU monitors the Turn Signal Switch and turns on the corresponding Turn Signal Lights (either left or right) via the Turn Signal/Hazard Flasher. At the same time, the MICU also monitors the push button Hazard Warning Switch. If it finds that the switch is turned on, it commands the Turn Signal/Hazard Flasher to flash both the left and right turn signal lights.

The MICU and the Turn Signal/Hazard Flasher Circuit are powered directly from the battery via separate fuses. Also, another B+ line passes thru the Ignition Switch to supply other parts of the MICU system.

Main Article: Honda Civic Wiring Diagram

Circuit diagram of Honda Civic turn signal/hazard flasher circuit
Honda Civic Turn Signal / Hazard Flasher Circuit Diagram

Other Honda Civic Wiring Diagram
Honda Civic Audio System Wiring Diagram – Audio Unit, Speaker System, Antenna Module, Radio Remote Switch, Cassette Player Unit, and the Auxiliary Jack Assembly
Honda Civic Brake Lights Wiring Diagram – Left Brake Light, Right Brake Light and Brake Pedal Position Switch
Honda Civic Climate Control Wiring Diagram – Cruise Control, HVAC (Heating, Ventilation, and Air Conditioning), Climate Control, and Rear Window Defogger
Honda Civic Exterior Lights Wiring Diagram – Headlights, Position Lights, Tail Lights, and License Plate Light
Honda Civic Gauge Control Wiring Diagram – Dash Lights Brightness Control, the A/T (Automatic Transmission) Gear Position Indicator, and the Gauge Control Module (Speedo)
Honda Civic Interior Lights Wiring Diagram – Ambient Light, Ceiling Light, Courtesy Lights, Glove Box Light, Map Light, Trunk Light and the Vanity Mirror Lights
Honda Civic Power Windows Wiring Diagram – Power Window Master Switch, Driver’s Window Control Unit, Front Passenger’s Window Switch, Left Rear Window Switch, Right Rear Window Switch, and their corresponding Window Motors
Honda Civic 2006 Security System Diagrams – Security Alarm System, Keyless Entry System (Central Locking System), and Power Door Locks System
Honda Civic Windshield Wiper Wiring Diagram – MICU, Combination Light Switch, Turn Signal Switch, Hazard Warning Switch, Fog Light Switch, Windshield Wiper, Windshield Washer, and Headlight Washer

References on Honda Civic Turn Signal/Hazard Flasher Circuit Diagram – Information on one of the best-selling cars in world, the Honda Civic Eight Generation.
Replace a Defective Key Fob for Six Dollars – Replace a defective Honda Civic key fob by installing a new inexpensive Central Locking System.

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