Passenger Compartment Fuse Panel Diagram in a 2005 Ford F-150
Passenger Compartment Fuse Panel Diagram in a 2005 Ford F-150

2005 F150 OBD2 Fuse Location: Finding the Right Fuse Box

Understanding your 2005 Ford F-150’s fuse box is crucial for diagnosing and resolving electrical issues. Locating the correct fuse and understanding its function can save you time and money on potential repairs. While the term “OBD2 fuse location” might lead you to expect a dedicated fuse box solely for the OBD2 system, it’s more about identifying which fuse in your F-150’s electrical system powers the OBD2 port and related diagnostic components. This guide will walk you through the fuse box locations in your 2005 F-150 and pinpoint fuses relevant to the OBD2 system and general vehicle operation.

Fuse Box Locations on a 2005 Ford F-150

Your 2005 Ford F-150 is equipped with not one, but three fuse boxes, each serving different circuits throughout your vehicle. Knowing where each is located is the first step to troubleshooting any electrical problem, including issues that might impact your OBD2 diagnostic port. These locations are:

  • Passenger Compartment Fuse Panel: This is likely the most frequently accessed fuse box, located inside the cabin of your F-150.
  • Auxiliary Relay Box (with DRL): Some 2005 F-150 models include Daytime Running Lights (DRL). If your truck has DRL, it will have this auxiliary box.
  • Auxiliary Relay Box (without DRL): For models without Daytime Running Lights, a slightly different auxiliary relay box configuration is used.

Let’s explore each of these locations in detail with diagrams and fuse listings to help you find the “OBD2 fuse location” you might be looking for, or any other fuse in your 2005 F-150.

Passenger Compartment Fuse Panel Diagram

The passenger compartment fuse panel, often the primary fuse box for many interior and essential vehicle functions, is located within the cabin of your 2005 F-150. Consult the diagram below to understand the layout and identify specific fuse positions.

Passenger Compartment Fuse Panel Diagram in a 2005 Ford F-150Passenger Compartment Fuse Panel Diagram in a 2005 Ford F-150

This fuse box controls a wide range of functions. Notably, for OBD2 relevance, fuse #41 (20A) is listed as “Cigar lighter, Diagnostic connector power”. This fuse is the most likely candidate you’re looking for when considering the “2005 F150 Obd2 Fuse Location” as it directly powers the diagnostic connector, which includes your OBD2 port.

Here’s a detailed listing of the fuses within the Passenger Compartment Fuse Panel:

Type No. Description
Fuse MINI 10A 1 Run/Accessory – Wipers, Instrument cluster
Fuse MINI 20A 2 Stop/Turn lamps, Speed control deactivate switch
Fuse MINI 5A 3 Power mirrors, Memory logic power, Memory seats and pedals
Fuse MINI 10A 4 DVD battery power, Power fold mirror
Fuse MINI 7.5A 5 Keep alive memory for Powertrain Control Module (PCM) and climate control module
Fuse MINI 15A 6 Parklamps, BSM, Instrument panel illumination
Fuse MINI 5A 7 Radio (start signal)
Fuse MINI 10A 8 Heated mirrors, Switch indicator
Fuse MINI 20A 10 Trailer tow back-up lamps relay (PCB1), Trailer tow parklamp relay (R201)
Fuse MINI 10A 11 A/C clutch, 4×4 solenoid
Fuse MINI 10A 13 Climate control module power, Flasher relay
Fuse MINI 10A 14 With a yellow sticker on the back of the fuse panel: Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, ABS, Heated PCV [5.4L], Redundant speed control switch All others: Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, Redundant speed control switch, Heated PCV [5.4L], Trailer tow back-up lamps relay coil, ABS, Reverse park aid, EC mirror
Fuse MINI 5A 15 Overdrive cancel, Cluster, Brake-Shift Interlock (BSI)
Fuse MINI 10A 16 Brake-shift interlock solenoid
Fuse MINI 15A 17 Fog lamp relay (R202)
Fuse MINI 10A 18 Run/Start feed – Overhead power point, Electrochromatic mirror, Heated seats, BSM, Compass, RSS (Reverse Sensing System)
Fuse MINI 10A 19 Restraints (Air bag module)
Fuse MINI 10A 20 Battery feed for overhead power point
Fuse MINI 15A 21 Cluster keep alive power
Fuse MINI 10A 22 Delayed accessory power for audio, power door lock switch and moonroof switch illumination
Fuse MINI 10A 23 RH low beam headlamp
Fuse MINI 15A 24 Battery saver power for demand lamps
Fuse MINI 10A 25 LH low beam headlamp
Fuse MINI 20A 26 Horn relay (PCB3), Horn power
Fuse MINI 5A 27 Passenger Air bag Deactivation (PAD) warning lamp, Cluster air bag warning lamp, Cluster RUN /START power
Fuse MINI 5A 28 SecuriLock transceiver (PATS)
Fuse MINI 15A 29 PCM 4×4 power
Fuse MINI 15A 30 PCM 4×4 power
Fuse MINI 20A 31 Radio power
Fuse MINI 15A 32 Vapor Management Valve (VMV), A/C clutch relay, Canister vent, Heated Exhaust Gas Oxygen (HEGO) sensors #11 and #21, CMCV, Mass Air Flow (MAF) sensor, VCT, Heated Positive Crankcase Ventilation (PCV) valve [4.2L engine], CID sensor [4.2L engine]
Fuse MINI 15A 33 Shift solenoid, CMS #12 and #22
Fuse MINI 20A 34 Fuel injectors and PCM power, Intake Manifold Runner Control [4.2L engine]
Fuse MINI 20A 35 Instrument cluster high beam indicator, High beam headlamps
Fuse MINI 10A 36 Trailer tow right turn/stop lamps
Fuse MINI 20A 37 Rear power point
Fuse MINI 25A 38 Subwoofer power
Fuse MINI 20A 39 Instrument panel power point
Fuse MINI 20A 40 Low beam headlamps, DRL
Fuse MINI 20A 41 Cigar lighter, Diagnostic connector power
Fuse MINI 10A 42 Trailer tow left turn/stop lamps
Fuse FMX/JCase 30A 101 Starter solenoid
Fuse FMX/JCase 20A 102 Ignition switch feed
Fuse FMX/JCase 20A 103 ABS valves
Fuse FMX/JCase 30A 105 Electric trailer brakes
Fuse FMX/JCase 30A 106 Trailer tow battery charge
Fuse FMX/JCase 30A 107 Power door locks (BSM)
Fuse FMX/JCase 30A 108 Passenger power seat
Fuse FMX/JCase 30A 109 Driver power seat, Adjustable pedals
Fuse FMX/JCase 30A 111 4×4 relays
Fuse FMX/JCase 40A 112 ABS pump power
Fuse FMX/JCase 30A 113 Wipers and washer pump
Fuse FMX/JCase 40A 114 Heated backlite, Heated mirror power
Fuse FMX/JCase 30A 116 Blower motor
Fuse FMX/JCase 30A 118 Heated seats
Circuit breaker MAXI 401 Power windows, Moonroof, Power sliding backlite
Relay R01 Starter solenoid
Relay R02 Accessory delay
Relay R03 Hi-beam headlamps
Relay R04 Heated backlite
Relay R05 Trailer tow battery charge
Relay R06 Blower motor
Relay R201 Trailer tow park lamps
Relay R202 Fog lamps
Relay R203 PCM

Auxiliary Relay Box (with DRL) Diagram

If your 2005 Ford F-150 is equipped with Daytime Running Lights (DRL), you will find this auxiliary relay box. This box is in addition to the passenger compartment fuse panel and handles circuits related to DRL and other systems.

Auxiliary Relay Box Diagram with DRL in a 2005 Ford F-150Auxiliary Relay Box Diagram with DRL in a 2005 Ford F-150

Here is the fuse and relay listing for the Auxiliary Relay Box (with DRL):

Type No. Description
Fuse ATO 5A F03 Clockspring illumination
Relay R01 4×4 CCW
Relay R02 4×4 CW
Relay R03 Daytime Running Lamps (DRL) high beam disable
Relay R201 (DRL) Daytime running lights
Relay R202 (A/C clutch) A/C magnetic clutch
Diode ATO D01 (A/C clutch) A/C magnetic clutch

Auxiliary Relay Box (without DRL) Diagram

For 2005 Ford F-150 models that do not have Daytime Running Lights, the auxiliary relay box configuration is slightly different. Refer to the diagram below for the layout of this fuse box.

Auxiliary Relay Box Diagram without DRL in a 2005 Ford F-150Auxiliary Relay Box Diagram without DRL in a 2005 Ford F-150

Below is the fuse and relay information for the Auxiliary Relay Box (without DRL):

Type No. Description
Fuse ATO 5A F03 Clockspring illumination
Diode ATO D01 A/C clutch
Relay R202 A/C clutch

Conclusion

When searching for the “2005 f150 obd2 fuse location”, you’re most likely looking for Fuse #41 (20A) “Diagnostic connector power” in the Passenger Compartment Fuse Panel. This fuse provides power to your OBD2 diagnostic port. If you are experiencing issues with your OBD2 scanner not powering up or connecting, checking this fuse should be one of your first steps.

Remember to always consult your 2005 Ford F-150 owner’s manual for the most accurate fuse diagrams and locations, as variations can occur. Understanding your fuse box layouts is essential for maintaining your vehicle’s electrical system and performing basic troubleshooting.

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