Fuses and relays Acura MDX (YD1; 2001-2006)

This material discusses in detail the fuse diagrams of the Acura MDX (first generation; YD1): 2001, 2002, 2003, 2004, 2005, 2006 release.

Fuse #9 in the passenger compartment from the passenger’s side is responsible for the ciggarette lighter.
Fuse #5 in the passenger compartment from the driver’s side is responsible for the fuel pump.

In the engine compartment

There are two fuse blocks here.

Fuse box #1

Located on the passenger’s side. To access it, push the tabs.

General view of the primary fuse box.

# Description Amps
R1 Right Headlight
R2 Left Headlight
R3 Horn
R4 A/C Condenser Fan
R5 Blower Motor
R6 Radiator Fan
R7 A/C Compressor Clutch
41 Battery, Power Distribution 120 A
42 Ignition Switch (BAT), Optional Connector U 50 A
43 Headlight (Right), Daytime Running Lights Control Module (DRL), Fog Light Relay 20 A
44 Empty -
  • Left Headlight,
  • Daytime Running Lights Control Module (DRL),
  • Dimmer Relay,
  • High Beam Indicator
20 A
46 Data Link Connector (DLC), PGM-FI Main Relay 1, Injectors, Camshaft Position (CMP) Sensor, Crankshaft Position (CKP) Sensor A & B 15 A
47 Brake Lights, Driver's Multiplex Control Unit, Horn (High), Ignition Key Switch, Powertrain Control Module (PCM), Trailer Lighting Connector, VSA Modulator-Control Unit, Auxiliary Fuse Holder: Fuse # 90 20 A
48 Audio Module (without Rear Entertainment System), Audio Amplifier 20 A
49 Hazard Warning Lights 15 A
50 Fog Lights 20 A
  • Power Window Relay,
  • Fuses in the interior box #2: 1, 7, 8, 15, 16
40 A
52 Rear Blower Motor 30 A
53 Rear Window Defogger 30 A
54 Fuses in the interior box #2: 9, 10, 11, 12, 13 40 A
55 Fuses in the interior box #2: 2, 3, 4, 5, 6, 14 40 A
56 Blower Motor Relay 40 A
57 Radiator Fan Motor 30 A
58 A/C Condenser Fan Motor 30 A
59 A/C Compressor Clutch 7,5 A
Reserve -

Fuse box #2

Located next to the battery. Push the tabs to open the box.

Access example.

General view.

# Description Amps
1 Audio Unit, Rear Controller and Screen, DVD Player Unit: with Rear Entertainment System, VTM-4 Control Unit (2003-2004) 20 A
2 VSA Modulator-Control Unit (+B FSR) 40 A
3 VSA Modulator-Control Unit (+B MTR) 30 A
  • VTM-4 Control Unit (2004-2006),
  • Audio Unit, Rear Controller snd Screen, DVD Player Unit: with Rear Entertainment System (2003-2004)
20 A
5 Empty -
  • Rear Accessory Power Socket
  • Rear Cigarette Lighter Fuse
20 A
7 Throttle Actuator Control Module 15 A
8 Ignition Coils 15 A
  • Air Fuel Ratio (A/F) Sensors (Bank 1, Bank 2), Air Fuel Ratio (A/F) Sensor Relay, Radiator Fan Relay, Engine Mount Control Solenoid, Evaporative Emission Control (EVAP) Canister Purge Valve, Secondary Heated Oxygen Sensors (Bank 1, Bank 2),
  • Electrical Load Detector (ELD) Unit (2004-2006)
15 A
  • PCM (VBU),
  • Tire Pressure Monitoring System (TPMS) Control Unit (2005 model year),
  • HandsFreeLink Control Unit (2005 model year)
7,5 A
11 Power Window Control Unit 20 A

Sub relay box

There is also an additional relay box under the hood.

R1 Dimmer, Audio Amplifier
R2 Intermittent Wiper
R3 Fan Control
R4 Automatic Wiper, Shift Lock

In the passenger compartment

The general arrangement of electronic modules in the passengerom compartment of the Acura MDX 1.

1 Primary fuse box from the driver side
2 Driver's Multiplex Control Unit
3 Additional Fuse Holder
4 Moonroof Close Relay
5 Fog Light Relay
6 Rear Audio Amplifier Relay, High Beam Cut Relay (with DRL)
7 Cruise Control Module
8 Daytime Running Lights Control Module
9 Radiator Fan Control Module
10 PGM-FI Main Relay
11 Rear Blower Motor Relay
12 Seat Heater Relay
13 Taillight Relay
14 Moon Roof Open Relay

From the driver's side

Fuse box #1 located underneath the dashboard.

General view of the front side.



No. Assigment Amps
R1 Starter Cut
R2 Reverse
R3 Turn Signal/Hazard
1 Acura MDX fuel pump fuse, Supplemental Restraint System (SRS) 15 A
2 Supplemental Restraint System (SRS) Unit 10 A
3 A/C Compressor Clutch Relay, Blower Motor Relay, Climate Control Panel, Climate Control Unit, A/C Condenser Fan Relay, Fan Control Relay, Rear Blower Motor Relay, Rear Heater-A/C Control Panel-unit, Rear Mode Control Motor, Rear Window Defogger Relay, Recirculation Control Motor 7,5 A
4 Automatic Inside Dimming Mirror, Automatic Lighting Control Unit, Electrical Compass Unit (without Navigation System), Multi-information Display Unit (without Navigation System), Optional Connector R, Power Mirror Actuator, Power Mirror Defogger, Seat Heater Relay 7,5 A
5 Daytime Running Lights Control Module 10 A
  • PCM, VTM-4 Relay (2003),
  • Shift Lock Relay (2005-2006)
15 A
7 Occupant Position Detection System (OPDS) Unit, Seat Weight Sensor Unit 7,5 A
8 Accessory Power Socket Relay, Optional Connectors, Shift Lock Solenoid, Rear Accessory Power Socket Relay 7,5 A
  • Automatic Lighting Control Unit, Brake Light Failure Sensor, Cruise Control Main Switch Indicator, Driver's Multiplex Control Unit, Driver's Power Seat Control Unit, Gauge Assembly,
  • Shift Lock Relay (2003-2004),
  • Keyless Receiver Unit, Passenger Multiplex Control Unit, Passenger's Airbag Cutoff Indicator, Rain Sensor (with Auto Wiper), Reverse Relay, VTM-4 Control Unit,
  • VTM-4 Relay (2004-2006),
  • VTM-4 Lock Switch, Windshield Washer Motor (with Auto Wiper),
  • Tire Pressure Monitoring System (TPMS) Control Unit (2004-2006)
10 A
10 Turn Signal/Hazard Relay 7,5 A
11 Rear Window Intermittent Wiper Control Unit, Rear Window Wiper Motor, Rear Window Washer Motor 10 A
  • Intermittent Wiper Relay, Windshield Washer Motor,
  • Windshield Wiper Motor, Automatic Wiper Relay: with Auto Wiper
30 A
13 Empty -

Additional fuse holders located near the driver's side fuse block.

1 Horn Relay, Horn (Low) 7,5 A
3 Automatic Wiper Control Unit, Windshield Wiper Motor 7,5 A
  • Alternator,
  • Electrical Load Detector (ELD) Unit (2003),
  • Immobilizer Control Unit-Receiver, VSA Modulator-Control Unit, Fuse in the passenger compartment from the drivers side: #6
7,5 A

From the passenger's side

Fuse box #2 located underneath the dashboard. To open the box, pull the right edge of the cover.

Access example.

General view of the front side.


Front side

Back side
Description Amps
R1 Power Window Relay
R2 Accessory Power Socket Relay
R3 Rear Window Defogger Relay
1 Moonroof Motor 30 A
2 Driver's Power Seat Rear Up-down Motor, Driver's Power Seat Recline Motor, Driver's Power Seat Control Unit (with DPMS) 20 A
3 Front Passenger's Rower Seat Front Up-Down Motor Front Passenger's Power Seat Slide Motor 20 A
4 Driver's Power Seat Front Up-Down Motor, Driver's Power Seat Slide Motor, Driver's Power Seat Control Unit (with DPMS) 20 A
5 Front Passenger's Power Seat Rear Up-Down Motor, Front Passenger's Power Seat Recline Motor, Passenger's Multiplex Control Unit 20 A
  • Daytime Running Lights Control Unit,
  • OnStar System (2005-2006)
10 A
  • Left Rear Window Motor,
  • Moonroof Open and Close Relay (2003)
20 A
8 Front Passenger's Window Motor 20 A
9 Audio Unit, Console Accessory Power Socket, DVD Player Unit (with Rear Entertainment System), Front Accessory Power Socket, Headphone Jack Assembly (with Rear Entertainment System), Multi-information Display Unit (without Navigation System), Navigation Display Unit, Acura MDX Front Cigarette Lighter Fuse, Rear Controller And Screen (with Rear Entertainment System), Rearview Camera Control Module (with Navigation System) 15 A
10 A/T Gear Position Indicator Panel Light, Audio Unit Light, Climate Control Unit Light, Cruise Control Main Switch Light, Dash Lights Brightness Controller, Driving Position Memory Switch Light, Driver's Multiplex Control Unit, DVD Player Unit, Glove Box Light, Fog Light Switch Light, Gauge Assembly Light, Hazard Warning Light Switch Light, Interior Light Switch Light, Front Parking Lights, Left Taillight, License Plate Light (Left and Right), Moonroof Switch Light, Multi-information Display Unit Light, Navigation Display Unit Light, Navigation Unit, Optional Connector T, Passenger's Airbag Cutoff Indicator, Front Side Marker Light, Right Taillight, Seat Heater Switches Light, Select/reset Switch Light, Taillight Relay, Trailer Lighting Connector, VTM-4 Lock Switch Light Ambient Iights (2005-2006) 15 A
  • Cargo Area Light, Courtesy Light, Multi-Information Display Unit (without Navigation System), Navigation Display Unit, Vanity Mirror Lights, Rear Individual Map Light,
  • Front Individual Map Light/HomeLink Footwell Lights (2004-2006),
  • Tire Pressure Monitoring System (TPMS) (2004)
10 A
12 Power Door Lock, Passenger's Multiplex Controlu Unit, Trunk Lid Opener Main 20 A
13 Automatic Lighting Control Unit, Door Multiplex Control Unit, Driver's Power Seat Control Unit (with DPMS), Driver's Multiplex Control Unit, Driving Position Memory Switch Indicator, Gauge Assembly, Immobilizer Control Unit-Receiver, Immobilizer Indicator, Keyless Receiver Unit, Navigation Unit, Passenqer's Multiplex Control Unit, Rearview Camera Control Unit (with Navigation), Security Indicator 7,5 A
14 Seat Heaters 20 A
  • Door Multiplex Control Unit, Power Window Control Unit,
  • Moonroof Open Relay (2004-2006),
  • Moonroof Close Relay (2004-2006)
7,5 A
16 Right Rear Window Motor 20 A
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