See Figure 1. The motorcycle has the following three fuses to protect electrical systems.
Main fuse (1): A 40 A fuse that protects all the circuits including those protected by the 15 A Battery fuse. Failure of this fuse causes the motorcycle to stop running. See a Harley-Davidson dealer.
P&A fuse (2): A 15 A fuse that protects the circuits of any installed accessories.
Battery fuse (3): A 15 A fuse that protects all the circuits. If the battery fuse fails while the engine is running, the engine continues to run and critical circuits like the ABS brakes continue to function. The failure of this fuse triggers a diagnostic code. See a Harley-Davidson dealer.
All other electrical protection for the motorcycle is accomplished by the body control module (BCM). The BCM senses conditions for individual circuits, interrupts power as needed, and resets circuits. If replacing a fuse or cycling power to the motorcycle does not resolve the problem, see a Harley-Davidson dealer.
Fuse Replacement
NOTE
Do not pull on metal tab (2) to remove side cover. Damage to the cover will result.
  1. See Figure 2. Remove the left side cover.
    1. Push up on plastic tab (3) to disengage metal tab (2) from caddy.
    2. Pull out and up to remove cover from caddy tabs (5).
  2. See Figure 1. Replace suspect fuse with a new fuse.
  3. See Figure 2. Install left side cover.
    1. Align the slots (4) with the tabs (5).
    2. Push cover into place until the plastic tab (3) engages the metal tab (2).
1Main
2P&A
3Battery
Figure 1. Fuse Block
1Fuse block
2Metal tab
3Plastic tab
4Cover slot (2)
5Caddy tab (2)
Figure 2. Electrical Caddy (Left Side)