Load Center Fuses

The illustration to the right explains how to read the load center diagram.

A-Fuse Location Number
B-Fuse Size
C-Fuse Use/Description


Load Center - Legend

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1-Not Used
3-Implement Power
4-Blower Motor
5-Key Switch
6-ATC and Pressurizer Blower
7-Radio, Steering Column, Horn, Clock and Dome Light-Unswitched Power
8-Right-Hand Junction Block, Convenience Outlet and Lighter-Battery Power

10-Reserved-Used for IVT™1 Only
11-Reserved-Used for IVT Only1
12-Not Used
13-Implement ELX, Controllers
14-Accessory Relay/7 Pin
15-Beacon and Power Mirrors
16-Hazard and Light Switch
17-Not Used
18-Come Home Mode-IVT Only
19-Not Used
20-Not Used

21-Operator Presence Seat Switch
22-Flex Cab Controller
23-SSU Power
24-Engine Control Unit (ECU)
25-Seat Controls
26-Business Band Radio, CB Radio, Field Office, Left-Hand Junction Block-Acc Key Switch
27-Convenience Right-Hand Junction Block, Accessories
29-Hydraulic Controller (Optional)

31-Not Used
32-Electric Fuel Pump
33-Not Used
34-Front Roof Field Lights (If Equipped)
K1-AC Relay, ATC
K2-AC Relay, Pressurizer Blower Motor
K3-Not Used
K4-Not Used
K5-Accessory Relay
K6-Implement Power

IVT is a trademark of Deere & Company

1See Releasing Park Brake (IVT Transmission) for details

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IMPORTANT: Fuse replacement must be the same rating as the original.

Do not attempt to disassemble master fuse unless instructed by your John Deere dealer. Ensure both negative (-) and positive (+) battery connections are disconnected from both batteries prior to fuse inspection or replacement.

8030 Series Tractors have a 250 amp master fuse (B) which can be accessed through battery compartment cover (A).

A-Battery Compartment Cover
B-250 Amp Master Fuse


Battery Compartment


250 Amp Master Fuse

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