2004 Acura MDX BaseFACTORY OEM SERVICE PROCEDURE

Circuit Protection Devices

CIRCUIT PROTECTION DEVICES LOCATION

Component Location
A/C Diode A Behind right side of dash. See Figure.
A/C Diode B In passenger's underdash fuse/relay box. See Figure.
Automatic Lighting Diode Under left side of dash. See Figure.
Diode In under-hood fuse/relay box. See Figure.
Driver's Underdash Fuse/Relay Box Behind left end of dash. See Figure.
ELD Unit In under-hood fuse/relay box. See Figure.
Front Blower Power Transistor Under right side of dash. See Figure.
In-Line Diode 1 In driver's underdash fuse/relay box. See Figure.
In-Line Diode 2 In driver's underdash fuse/relay box. See Figure.
In-Line Diode 3 In passenger's underdash fuse/relay box. See Figure.
In-Line Diode 4 In passenger's underdash fuse/relay box. See Figure.
Passenger's Underdash Fuse/Relay Box Behind right kick panel. See Figure.
Rear Blower Motor Power Transistor Under center console. See Figure.
Shift Lock Diode Under right side of dash. See Figure.
Under-Hood Fuse/Relay Box At right side of engine compartment. See Figure.
Under-Hood Fuse Sub-Fuse Box Left side of engine compartment. See Figure.
Factory Service Tools

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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.