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.
2003 Acura MDX BaseFACTORY OEM SERVICE PROCEDURE
Circuit Protection Devices
CIRCUIT PROTECTION DEVICES LOCATION
| Component | Component Location |
|---|---|
| A/C Diode A | Behind right side of dash. See Figure . |
| A/C Diode B | Behind right side of dash, taped to harness. |
| A/C Diode C | Behind right side of dash, taped to harness. |
| Automatic Lighting Diode | Under left side of dash. |
| Driver's Underdash Fuse/Relay Box | Behind left end of dash. |
| ELD Unit | In underhood fuse/relay box. |
| Front Blower Power Transistor | Under right side of dash. |
| Multi-Relay Box | At right front of engine compartment. See Figure . |
| Passenger's Underdash Fuse/Relay Box | Behind right kick panel. See Figure . |
| Under-Hood Fuse/Relay Box | At right side of engine compartment. See Figure . |
| Under-Hood Multi-Fuse Box | On left side of engine compartment. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.