Where are the fuse boxes and relay located?

  1. Passenger Compartment : The Fuse & Relay Box and Additional items are located in the passenger compartment.
  2. Engine Compartment Fuse Box: The Fuse & Relay Box is located in the engine compartment.

1. Passenger Compartment

Fuse Box, Control Unit & Relay

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Fuse Box, Control Unit & Relay Layout

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NoAssignment
1Fuse and relay box
2Instrument cluster (tachometer)
3Instrument cluster (speedometer)
4Except GX: Relay for socket outlet in center console
Hybrid: Front Outlet Relay
GX: Starter control relay
5Except GX: Relay, front socket
Hybrid: Relay for socket outlet in center console
GX: Center console socket relay
6GX: Front outlet relay
7GX: Relay for injector control unit
8SL (’09 -’11): Fog Light Relay
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NoAssignment
1’08 -’11: Tire Pressure Monitoring System (TPMS) Control Module
2Audio and navigation control unit
3Electric power steering (ESP) control unit
GX: Injector control unit
4Coupe: Audio amplifier
5Airbag control unit
6’09 -’11: USB Connector Control Box
7Heater and air conditioner control unit
8Immobilizer control unit
9’09 -’11: Handsfree Control Unit (HandsFreeLink)
10Sedan: Audio System Amplifier

Additional Items

2008-honda-civic-passenger-compartment-additional-items
NoAssignment
1’09 -’11: USB Connector Control Box
2Hybrid: Powertrain Control Module (MCM) Relay # 1
3Hybrid: Powertrain Control Module (MCM) Relay # 2
4’07 -’10: XM receiver (if navigation is available)
5Hybrid: Powertrain Control Module (MCM – Motor Control Module)
6’09 -’11: Handsfree Control Unit (HandsFreeLink)

2. Engine Compartment Fuse Box

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2009 Honda Civic Fuse Box Diagram

Passenger Compartment

2009 Honda Civic Under Dash Fuse Box Diagram

The interior fuse box is underneath the steering column. To open it, turn the knobs as shown.

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2009 Honda Civic Passenger Compartment Fuse Box Diagram

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2009 Honda Civic Under Dash Fuse Details

AProtected ComponentProblems, if blown or malfunction
17.5Power Mirror Switch Light (4-Door), Power Window Relay (without Key-off Operation) 
215except Hybrid: Camshaft Position (CMP) Sensor A, Engine/Powertrain Control Module (ECM/PCM), Immobilizer-Keyless Control Unit 
15Hybrid: Powertrain Control Module (PCM), Fuel Pump (PGM-FI Main Relay №2), Immobilizer-Keyless Control Unit 
310Alternator, Engine/Powertrain Control Module (ECM/PCM), Evaporative Emission Control (EVAP) Canister Purge Valve, EVAP Canister Vent Shut Valve, Mass Air Flow (MAF) SensorProblem in starting.
10DC-DC Converter, Electrical Load Detector (ELD), Evaporative Emission Control (EVAP) Canister Purge Valve, Mass Air Flow (MAF) Sensor, Powertrain Control Module (PCM), Brake Pedal Position Switch, Secondary Heated Oxygen Sensor (HO2S) 
47.5ABS or VSA Modulator-Control Unit, Yaw Rate-Lateral Acceleration Sensor (with VSA), Electric Power Steering (EPS) Control Unit 
5152-Door: Audio Amplifier 
15Driver’s Seat Heater, Front Passenger’s Seat Heater, Seat Heater Relay 
6 – 
77.5Tire Pressure Monitoring System (TPMS) Control Unit 
8 – 
97.5Occupant Detection System (ODS) Unit, Supplemental Restraint System (SRS) Unit, Passenger’s Airbag Cut-Off Indicator 
107.5Gauge Control Module (Tach), Power Window Master Switch (2-Door with Auto Up/Auto Down), Back-Up Light Switch (M/T), Shift Lock Solenoid (A/T), Multiplex Integrated Control Unit (MICU), Tire Pressure Monitoring System (TPMS) Control Unit, BCM Module (Hybrid), Interface Box 
1110Supplemental Restraint System (SRS) Unit 
1210Right Headlight (High Beam) 
1310Left Headlight (High Beam) 
147.5Audio Unit Light, Dash Lights Brightness Controller Light, Hazard Warning Switch Light, Heater Control Panel Light/HVAC Control Unit Light, Moonroof Switch Light, Passenger’s Airbag Cut-Off Indicator, Select/Reset Switch Light, A/T Gear Position Indicator Panel 
Light, Audio Remote Switch Light, Cruise Control Combination Switch Light, Driver’s Seat Heater Switch Light, HFL-Voice Control 
Switch Light, Interface Box, Passenger’s Seat Heater Switch Light, VSA OFF Switch Light 
157.5Parking Lights, Taillights, License Plate Lights, Side Marker Lights 
1610Right Headlight (Low Beam) 
1710Left Headlight (Low Beam) 
1820High Beam, Multiplex Integrated Control Unit (MICU) 
1915Parking Lights, Multiplex Integrated Control Unit (MICU) 
20 – 
2120Low Beam, Multiplex Integrated Control Unit (MICU) 
227.5Hybrid: A/C Compressor Driver 
237.5Starter Switch Signal, Powertrain Control Module (PCM) 
2420Moonroof Control/Motor 
2520Power Door Lock, Multiplex Integrated Control Unit (MICU) 
2620Driver’s Window Motor (Power Window Master Switch) 
27 – 
2815Rear/Console Accessory Power Socket 
2915Front Accessory Power Socket 
30204-Door: Front Passenger’s Window Motor 
202-Door: Moonroof Switch, Moonroof Control Unit/Motor, Passenger’s Window Motor 
31 – 
32204-Door: Right Rear Window Motor, Moonroof Switch, Moonroof Control Unit/Motor 
33204-Door: Left Rear Window Motor 
34 – 
357.5Audio Unit, Front Accessory Power Socket, Rear/Console Accessory Power Socket, Stereo Amplifier (2-Door), HandsFreeLink 
Control Unit, Ignition Key Switch, Multiplex Integrated Control Unit (MICU), Interface Box 
3610Heater Control Panel/HVAC Control Unit, Power Mirrors, Recirculation Control Motor, A/C Compressor Clutch Relay, Blower Motor Relay, Power Mirror Defogger Relay, Rear Window Defogger Relay, Cooling Fan Control Relay and Radiator Ran Relay (A/C Diode), AHB Buzzer (Hybrid), Servo Unit (Hybrid) 
377.5Daytime Running Light, Multiplex Integrated Control Unit (MICU) 
3830Front Wiper, Multiplex Integrated Control Unit (MICU) 
Relay 
R1Power Window 
R2Fuel Pump (PGM-FI Main 2) Problem in starting.
R3Starter Cut Problem in starting.

Under Hood Honda Civic Fuse Box Diagram

2009 Honda Civic Under Hood Fuse Box Diagram

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2009 Honda Civic Under Hood Fuse Box Details

AProtected ComponentProblems, if blown or malfunction
1100Battery, Power Distribution 
70Electric Power Steering (EPS) Control Unit 
250Ignition Switch 
80except Hybrid: Fuses (Passenger Compartment): 5, 6, 7, 27, 28, 29, 31 
802006-2007 (Hybrid): Fuses (Passenger Compartment): 5, 6, 7, 27, 28, 29, 31 
602008-2011 (Hybrid): Fuses (Passenger Compartment): 5, 6, 7, 27, 28, 29, 31 
330ABS or VSA Modulator-Control Unit 
30except Hybrid: ABS or VSA Modulator-Control Unit 
30Hybrid: ABS Modulator-Control Unit 
40Hybrid: VSA Modulator-Control Unit 
450Fuses (Passenger Compartment): 18, 19, 20, 21 
40Fuses (Passenger Compartment): 24, 25, 26, 30, 32, 33 
540Servo Unit 
620A/C Condenser Fan Relay, A/C Condenser Fan Motor 
720M/T: Radiator Fan Relay, Radiator Fan Motor 
30A/T: Radiator Fan Relay, Radiator Fan Motor 
8304-Door: Rear Window Defogger Relay, Rear Window Defogger 
402-Door: Rear Window Defogger Relay, Rear Window Defogger 
940Blower Motor Relay, Blower Motor 
1010Hazard Lights, Multiplex Integrated Control Unit (MICU), Gauge Control Module (Speedo), Gauge Control Module (Tach), 
1115Air Fuel Ratio (A/F) Sensor №1, Engine/Powertrain Control Module (ECM/PCM), Vent Shut Solenoid (Hybrid)Problem in starting.
1215Brake lights, Engine/Powertrain Control Module (ECM/PCM), Horn, Multiplex Integrated Control Unit (MICU) 
1315Hybrid: Rear Ignition Coils 
1415Hybrid: Front Ignition Coils 
157.5A/C Condenser Fan Relay 
16 – 
17152-Door: Audio Amplifier 
1815except Hybrid: Iqnition Coils, Engine/Powertrain Control Module (ECM/PCM) 
20Hybrid: Iqnition Coils, Powertrain Control Module (PCM) 
1915Crankshaft Position (CKP) Sensor, Camshaft Position (CMP) Sensor B, Engine/Powertrain Control Module (ECM/PCM), Electronic Throttle Control System (ETCS) Control Relay, Injectors, PGM-FI Main Relay №1 (Fl MAIN), PGM-FI Main Relay №2 (Fuel Pump) (except Hybrid) 
207.5A/C Compressor Clutch Relay, A/C Compressor Clutch 
2115Electronic Throttle Control System (ETCS) Control Relay, Engine/Powertrain Control Module (ECM/PCM) 
227.5Ceiling Light, Map Lights, Trunk Light, Auxiliary Electric Water Pump, Auxiliary Electric Water Pump Relay 
2310Audio Unit, Data Link Connector (DLC), Gauge Control Module (Tach), Gauge Control Module (Speedo), Hazard Warning Switch, Immobilizer-Keyless Control Unit, Multiplex Integrated Control Unit (MICU), Motor Control Module (MCM) (Hybrid), BCM Module (Hybrid), HandsFreeLink Control Unit 
Relay 
R1Radiator Fan 
R2A/C Condenser Fan 
R3Fan Control 
R4Electronic Throttle Control System (ETCS) Control 
R5Blower Motor 
R6Power Mirror Defogger 
R7PGM-FI Main (№1) 
R8Rear Window Defogger 
R9PGM-FI Subrelay 
R10A/C Compressor Clutch 
R11Ignition Coil 

2009 Honda Civic Under Hood Relay Box Diagram

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2009 Honda Civic Under Hood Relay Box Details

NoAmpsFunctionProblems, if blown or malfunction
6110BCM Module, Motor Control Module (MCM) Relay №2, Servo Unit 
627.5BCM Module, Motor Control Module (MCM) Relay №1
6315Servo Unit
64
R1Auxiliary Electric Water Pump 
R2Fuel PumpProblem in starting.

WARNING: The terminal and harness assignments for individual connectors may vary depending on the vehicle’s equipment level, model, and market. It is recommended to refer to the fuse box diagram provided at the back of the fuse box cover for accurate information.


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