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Replacement and OEM Parts for 2007 GMC Sierra 3500 Classic Fuse Box

2007 GMC Sierra 3500 Classic Fuse Box

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2007 GMC Sierra 3500 Classic
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Fuses & Fuse Box
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9 Q&A for Fuse Box Repair
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  • OEM 2007 GMC Sierra 3500 Classic Block Asm-Engine Wiring Harness Junction Diagram - 15139209
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    OEM (Genuine) 2007 GMC Sierra 3500 Classic Block Asm-Engine Wiring Harness Junction

    PartNumber: 15139209
    OEM 2007 GMC Sierra 3500 Classic Block Asm-Engine Wiring Harness Junction - 15139209
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.4 x 5.3 x 12.2 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2007 GMC Sierra 3500 Classic Block Asm-Engine Wiring Harness Junction
    More Info
    Vehicle Fitment
    • 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS

FAQ for Fuse Box Repair

Q: What is the recommended torque for the Underhood Electrical Center/Junction Block Bracket screws?
A:
The recommended torque is 9 N.m (80 lb in).
By Bob
GM Specialist
01/11/2022
Q: What is the preliminary procedure for the instrument panel electrical center or junction block-left side?
A:
You shall remove the instrument panel (I/P) knee bolster.
By Bob
GM Specialist
01/11/2022
Q: How to properly service the underhood electrical center or junction block?
A:
You shall remove the cover, and release the retainers securing the junction block to the bracket.
By Bob
GM Specialist
01/11/2022
Q: What is the preliminary procedure for the underhood electrical center or junction block?
A:
The procedure is to disconnect the battery.
By Bob
GM Specialist
01/11/2022
Q: How to service the left I/P electrical center/junction block?
A:
You shall disconnect all electrical connections, and release the plastic retaining tab to loosen the electrical center and maneuver out of the I/P area.
By Bob
GM Specialist
01/11/2022
Q: What is the preliminary procedure for the underhood electrical center/junction block bracket?
A:
The procedure is to remove the underhood electrical center junction block.
By Bob
GM Specialist
01/11/2022
Q: How many screws does the underhood electrical center/junction block bracket attach?
A:
It attaches 3 screws.
By Bob
GM Specialist
01/11/2022
Q: How to service the body harness junction block?
A:
You need to remove the cover and disconnect the electrical connectors.
By Bob
GM Specialist
01/11/2022
Q: How to inspect the fuse block-I/P (left side) for loose connector X1?
A:
The proper way is to turn OFF the ignition and all accessories, disconnect the negative battery cable, remove the left side fuse block, inspect connector X1 (1) on the back of the fuse block for a loose connection, install the left side fuse block, connect the negative battery cable, and clear any DTCs that may be present with a scan tool and verify the proper operation of the vehicle.
By Bob
GM Specialist
29/10/2022
See more FAQs (4)

FAQ for Other Repair Info

Q: How to remove the starter motor (4.8L, 5.3L, 6.0L, and 6.2L)?
A:
The proper way is to disconnect the negative battery cable, and the engine wiring harness electrical connector from the oil level sensor, and remove the right front wheel and tire, the right front wheelhouse liner, the engine wiring harness lead terminal, the Starter solenoid cable, and the starter out through the wheel well opening.
Q: How to service the auxiliary body control module?
A:
The proper way is to press on the tabs to release the auxiliary Body Control Module, disconnect the electrical connectors, and reprogram the auxiliary body control module if replaced.
Q: How to remove the sunroof motor/actuator (extended cab)?
A:
The proper way is to disconnect the electrical connector from the motor/actuator, pull it straight down to disengage the drive gear from the cables, and remove the Sunroof Motor/actuator (3) from the sunroof module.