GMC Envoy XL 2003-2006 fuse box and relay Diagrams

Find the fuse box and relay locations for the GMC Envoy XL 2003-2006, with diagrams for easy reference. Ensure reliable performance of key electrical systems.

The GMC Envoy XL (2003-2006) is an extended-body version of the popular GMC Envoy, designed to offer increased interior space and seating for up to seven passengers. This extended body style makes it a practical choice for families or those needing extra cargo space. The Envoy XL is equipped with a range of electrical features that enhance convenience and safety, such as power windows, headlights, and climate control.

The fuse box and relays are crucial in maintaining these electrical systems. The primary fuse box is located under the hood on the driver’s side, while another may be found inside the cabin near the driver’s door. Relays, which control larger electrical loads like the starter and fuel pump, are housed in the same area. Regular inspection of the fuse box and relays is essential for reliable operation of the vehicle’s electronic functions.

MUST READ: DYI – How to Check Car Fuses?

(2003-2006) GMC Envoy XL fuse box and relay with Diagram

WARNING

• Never replace a fuse with one that has a higher amperage rating.
• A fuse with a too-high amperage could damage the electrical part and cause a fire.
• On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
• If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
• Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

GMC Envoy XL 2003-2006 fuse assignment

GMC Envoy XL Year of production: 2003, 2004, 2005, 2006

Location of Fuse Boxes

Engine Compartment Fuse Block:

The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle.

To Access:

1. Remove the primary cover by pressing the two locking tabs.
2. Remove the secondary cover by snapping off while lifting.
3. To reinstall the fuse panel cover, reverse the sequence.

Rear Underseat Fuse Block:

The rear underseat fuse block is located under the rear seat on the driver’s side of the vehicle.

Fuse Box Diagrams

2003

Engine Compartment Fuse Block

List of fuses in the Engine Compartment Fuse Block (2003)

Rear Underseat Fuse Block

List of fuses in the Rear Underseat Fuse Block (2003)

2004

Engine Compartment Fuse Block

List of fuses in the Engine Compartment Fuse Block (2004)

Rear Underseat Fuse Block

List of fuses in the Rear Underseat Fuse Block (2004)

2005

Engine Compartment Fuse Block

List of fuses in the Engine Compartment Fuse Block (2005)

Rear Underseat Fuse Block

List of fuses in the Rear Underseat Fuse Block (2005)

2006

Engine Compartment Fuse Block

List of fuses in the Engine Compartment Fuse Block (2006)

Rear Underseat Fuse Block

List of fuses in the Rear Underseat Fuse Block (2006)

Conclusion

The GMC Envoy XL 2003-2006 offers both comfort and functionality, supported by a robust electrical system. Maintaining the fuse box and relays is key to ensuring reliable performance of its features.