Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Driver's Under-dash Fuse/Relay Box
2002 Honda Civic SiSECTION Driver's Under-dash Fuse/Relay Box
WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
FUSE/RELAY DESCRIPTION
| Socket | Ref | Terminal | Connects to |
|---|---|---|---|
| A | 22 | 6 | Ignition switch lead (see IGNITION SWITCH LEAD ) |
| B | 13 | 2 | SRS main harness (see SRS MAIN HARNESS ) |
| C | 10 | 5 | Left engine compartment wire harness (see LEFT ENGINE COMPARTMENT WIRE HARNESS ) |
| D | 4 | 20 | Left engine compartment wire harness (see LEFT ENGINE COMPARTMENT WIRE HARNESS ) |
| Diode | 1 | - | Driver's door courtesy light |
| Diode | 2 | - | Left rear door courtesy light |
| E | 11 | 10 | Left side wire harness (see LEFT SIDE WIRE HARNESS ) |
| F | 3 | 14 | Left side wire harness (see LEFT SIDE WIRE HARNESS ) |
| G | 5 | 6 | Not used |
| H | 8 | 18 | Driver's door wire harness (see DRIVER'S DOOR WIRE HARNESS ) |
| J | 20 | 18 | Dashboard wire harness A
|
| K | 21 | 18 | Dashboard wire harness A
|
| L | 24 | 22 | Dashboard wire harness B (see DASHBOARD WIRE HARNESS B (LEFT BRANCH) ) |
| M | 12 | 20 | Dashboard wire harness B (see DASHBOARD WIRE HARNESS B (LEFT BRANCH) ) |
| Driver's multiplex control unit connector A | 6 | 24 | (Plugs directly into the fuse box) |
| N | 23 | 7 | Dashboard wire harness B (see DASHBOARD WIRE HARNESS B (LEFT BRANCH) ) |
| P | 19 | 3 | Dashboard wire harness B (see DASHBOARD WIRE HARNESS B (LEFT BRANCH) ) |
| R | 18 | 1 | Optional connector |
| Reverse relay | 26 | 4 | |
| S | 17 | 1 | Optional connector |
| Starter cut relay | 25 | 4 | |
| T | 16 | 1 | Optional connector |
| Turn signal/hazard relay | 27 | 4 | |
| U | 15 | 1 | Optional connector |
| V | 14 | - | Not used |
| W | 7 | - | Memory erase signal (MES) connector |
| X | 9 | 6 | Driver's door wire harness (see DRIVER'S DOOR WIRE HARNESS ) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.