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004 ELECTRICAL

Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

IDENTIFICATION

MODEL IDENTIFICATION

FUSIBLE LINK

Fusible links are usually located between battery and starter or electrical center. For description and repair

rocedures, see Fig. 1 .

CAUTION: When battery is disconnected, vehicle computer and memory systemsmay lose memory data. Driveability problems may exist until computersystems have completed a relearn cycle. See appropriate COMPUTERRELEARN PROCEDURES article in GENERAL INFORMATION beforedisconnecting battery.

Model Body Code

Chevrolet

Trailblazer S/T

GMC

Envoy XL S/T

Envoy XUV S/T

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 1: Repairing Fusible Links

REAR FUSE BLOCK

NOTE: The short wheelbase models use a different rear fuse block from the longwheelbase models. The rear fuse block is located under left second row seat onboth. See Fig. 2 .

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 2: Locating Rear Fuse BlockCourtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 4: Rear Fuse Block Legend (Short Wheelbase - 1 Of 2)

Courtes of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 6: Identifying Rear Fuse Block Components (Long Wheelbase)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 7: Rear Fuse Block Legend (Long Wheelbase - 1 Of 2)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 8: Rear Fuse Block Legend (Long Wheelbase - 2 Of 2)Courtesy of GENERAL MOTORS CORP.

UNDERHOOD FUSE BLOCK

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

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Fig. 9: Locating Underhood Fuse Block

Courtesy of GENERAL MOTORS CORP.

4.2L Engine

NOTE: Underhood fuse block is located on driver's side of engine compartment. SeeFig. 9 .

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 10: Identifying Underhood Fuse Block Components (Early Production 4.2L Engine)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 11: Identifying Underhood Fuse Block Components (Late Production 4.2L Engine)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 12: Underhood Fuse Block Legend (4.2L Engine - 1 Of 3)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 13: Underhood Fuse Block Legend (4.2L Engine - 2 Of 3)

Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 14: Underhood Fuse Block Legend (4.2L Engine - 3 Of 3)

Courtesy of GENERAL MOTORS CORP.

5.3L Engine

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 15: Identifying Underhood Fuse Block Components (Early Production 5.3L Engine)

Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 16: Identifying Underhood Fuse Block Components (Late Production 5.3L Engine)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 17: Underhood Fuse Block Legend (5.3L Engine - 1 Of 3)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 18: Underhood Fuse Block Legend (5.3L Engine - 2 Of 3)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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Fig. 19: Underhood Fuse Block Legend (5.3L Engine - 3 Of 3)Courtesy of GENERAL MOTORS CORP.

2004 Chevrolet TrailBlazer

2004 ELECTRICAL' 'Fuses & Circuit Breakers - Envoy XL, Envoy XUV & Trailblazer

ESYPRO

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