Fuse block circuit breakers protect the vehicle’s battery and starter motor. Here’s how: as the electrical current flowing through them increases, the circuit breaker heats until a threshold is reached. When the threshold current and corresponding temperature is reached, an internal connector melts to break the circuit.
They're typically mounted on the battery post. Note: no special tools are required to remove and replace.
The main cause of premature failure is excessive heat from the engine or electrical short.
Yes, a failing circuit breaker can illuminate the Advance Track or MIL with DTCs P0230, P025A, P0627, P0201, P0202, P0203, P0204, P0205, P0207, and P0208.
Our FH55 fits high-failure Ford applications and provides coverage for 968,000 VIO. To ensure quality, our parts feature premium components, including: