Table of Contents
Most electrical circuits in these Japanese sedan and station wagon models are protected by fuses. High-current components—such as headlights, fan motors, and the fuel pump—are routed through relays. Fuses and relays are housed in power distribution centers located under the hood, inside the passenger compartment, and in the trunk.
Applies to 7th-generation Honda Civic models (2001, 2002, 2003, 2004, 2005, and 2006) equipped with D14 (1.4L), D16 (1.6L), D17 (1.7L), or K20 (2.0L) gasoline engines.
Passenger Compartment Fuse Box
The under-dash fuse box is located beneath the steering column.
Example photo for reference.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected / Component | Rating (A) |
| 1 | Ignition coils | 15 |
| 2 | - | |
| 3 | Multiplex Control Unit (models with daytime running lights) | 10 |
| Front fog lights (KH), fog light indicator (KH) | 20 | |
| 4 | Alternator, vehicle speed sensor (VSS), primary oxygen sensor (HO2S), secondary oxygen sensor (HO2S), ELD unit, EVAP canister purge valve, cruise control module, cruise control main switch | 10 |
| 5 | Not used | - |
| 6 | Moonroof open relay, moonroof close relay, master power window switch, headlight leveling switch, headlight leveling control unit | 7.5 |
| 7 | Moonroof motor | 20 |
| 8 |
|
7.5 |
| 9 | Front passenger position sensor (OPDS) unit | 10 |
| 10 |
|
7.5 |
| 11 | ABS modulator-control unit | 7.5 |
| 12 | Multiplex Control Unit (models with daytime running lights) | 7.5 |
| 13 | SRS airbag control unit | 10 |
| 14 |
|
10 |
| 15 | Security system control unit connector (optional) | 10 |
| Headlight washer control unit | 30 | |
| 16 | Heated driver's seat, heated front passenger's seat | 20 |
| 17 |
|
15 |
| 18 | Cigarette lighter fuse | 15 |
| 19 | Turn signal / hazard flasher relay | 7.5 |
| 20 |
|
20 |
| 21 | Not used | - |
| 22 | Front passenger power window regulator motor | 20 |
| 23 | Driver's power window regulator motor | 20 |
| 24 | Rear left power window regulator motor | 20 |
| 25 | Rear right power window regulator motor | 20 |
| Relays | ||
|
||
| 20 | Power window relay | |
| 24 | Starter relay | |
| 22 | Parking light relay (TAIL) | |
| 10 | Turn signal / hazard flasher relay | |
| 27 | Diode | |
| Note: Remaining slots are empty or contain harness connectors. | ||
Engine Compartment Fuse Box
Under-hood fuse box located adjacent to the battery.
General layout view.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected / Component | Rating (A) |
| 1 |
|
20 |
| 2 | Headlights, parking lights (KK), Multiplex Control Unit (KG), license plate lights, side marker lights, tail light relay | 15 |
| 3 | Cargo area lamp, ceiling light, map light | 7.5 |
| 4 | Radiator cooling fan motor | 20 |
| 5 | Security system control unit (KK: EX, KN; TR: 1.6ES; KG: 1.6ES; KN), turn signal flasher relay | 10 |
| 6 | Crankshaft position (CKP) sensor, powertrain control module (PCM), fuel injectors, idle air control (IAC) valve, immobilizer control unit, PGM-FI main relay No. 1, PGM-FI main relay No. 2, top dead center (TDC) sensor | 15 |
| 7 | Brake lights, high-mount stop light, powertrain control module (PCM), ABS modulator-control unit, cruise control module, multiplex control unit, security alarm horn relay (CC: EX, KH; TR: 1.6ES; KG: 1.6ES; KN), alarm horn (KK: EX, KN; TR: 1.6ES; KG: 1.6ES; KN), shift lock solenoid valve (KN) | 15 |
| 8 | ABS modulator-control unit | 20 |
| 9 | Audio unit, Data Link Connector (DLC/OBD-II), instrument cluster, Multiplex Control Unit, immobilizer indicator, immobilizer control unit, keyless entry receiver unit, security system control unit (CC: EX, KN; TR: 1.6ES; KG: 1.6ES; KN) | 10 |
| 10 | ABS modulator-control unit motor | 40 |
| 11 | Rear window defogger grid | 30 |
| 12 | HVAC blower motor | 40 |
| 13 | Power window motors, moonroof motor | 40 |
| 14 | Fuses #3, #5, #15, and #16 (under-dash fuse box) | 40 |
| 15 | Left headlight, high beam indicator, headlight washer control unit | 15 |
| 16 | Multiplex Control Unit | 20 |
| 17 | Right headlight | 15 |
| 18 | Electronic Power Steering (EPS) control unit | 60 |
| 19 | Main battery fuse | 60 |
| 20 | Ignition switch
|
50 *1 40 *2 |
| Relays | ||
|
||
| 4 | A/C compressor clutch relay | |
| 6 | Blower motor relay | |
| 1 | Condenser fan relay | |
| 14 | Electrical Load Detector (ELD) unit | |
| 7 | Headlight relay No. 1 | |
| 15 | Headlight relay No. 2 | |
| 2 | Horn relay | |
| 2 | Radiator cooling fan relay | |
| 5 | Rear window defogger relay | |
| Note: Remaining slots are empty or contain harness connectors. | ||