What relays are in the Crown Victoria / Grand Marquis battery junction box?

Relay 1 is the Rear Defrost Relay, Relay 2 is the Horn Relay, Relay 3 is the Cooling Fan Relay, and Relay 4 is the Air Suspension Pump Relay (on police vehicles, Relay 4 is the Police Power Relay).

Which fuse protects the electric fuel pump relay?

Fuse 1, rated 20 amps, protects the Electric Fuel Pump Relay (wiring diagram page 13-5).

What is maxi-fuse 15 for and what is its rating?

Maxi-fuse 15 is a 50 amp fuse protecting the Anti-Lock Brake Module.

Which circuit breaker covers the power door locks and power seats?

Circuit Breaker 7, rated 20 amps, protects the Power Door Locks, Power Seats, and Luggage Compartment Lid Release.

What do the asterisks (*) mean on this fuse chart?

Items marked with an asterisk apply only to vehicles 'WITH POLICE' (the police package), such as *16 Police Option Fuse Holder and *4 Police Power Relay.

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Ford Crown Victoria & Grand Marquis Battery Junction Box Fuse & Relay Chart

Crown Victoria/Grand Marquis Battery Junction Box Fuse, Relay and Circuit Breaker Chart

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Service-manual Battery Junction Box legend for Crown Victoria/Grand Marquis: maxi-fuses, fuses, relays and circuit breakers including air suspension, high-speed cooling fan, ABS and police options.

AI caption April 2007 · Photo 116 of 185

This document is a screenshot from a Ford Service Information wiring diagram source titled 'Wiring Diagrams - Crown Victoria and Grand Marquis.' It shows the Battery Junction Box (underhood fuse/relay panel) layout and legend. A diagram depicts fuse positions 1–17 in two columns alongside four relay positions (Relay 1–4). A relay legend identifies Relay 1 as the Rear Defrost Relay, Relay 2 as the Horn Relay, Relay 3 as the Cooling Fan Relay, and Relay 4 as the Air Suspension Pump Relay (or, with the police package, the Police Power Relay). Three tables list maxi-fuses (positions 8–16, 30–50 amps) covering circuits such as the air suspension system, ignition switch feeds to the Central Junction Box, PCM power relay, high speed cooling fan relay, rear window defrost, anti-lock brake module, and police option fuse holder; regular fuses (positions 1–6, 15–30 amps) covering the electric fuel pump relay, starter relay/generator, radio/subwoofer amplifier/CD changer, police power relay, horn relay, and DRL module; and circuit breakers (positions 7 and 17) for power door locks/seats/luggage compartment lid release and the cooling fan low relay. Each row references a wiring diagram page number (13-1 through 13-8). Entries marked with an asterisk apply only to police-package vehicles.

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Frequently asked questions

What relays are in the Crown Victoria / Grand Marquis battery junction box?: Relay 1 is the Rear Defrost Relay, Relay 2 is the Horn Relay, Relay 3 is the Cooling Fan Relay, and Relay 4 is the Air Suspension Pump Relay (on police vehicles, Relay 4 is the Police Power Relay).
Which fuse protects the electric fuel pump relay?: Fuse 1, rated 20 amps, protects the Electric Fuel Pump Relay (wiring diagram page 13-5).
What is maxi-fuse 15 for and what is its rating?: Maxi-fuse 15 is a 50 amp fuse protecting the Anti-Lock Brake Module.
Which circuit breaker covers the power door locks and power seats?: Circuit Breaker 7, rated 20 amps, protects the Power Door Locks, Power Seats, and Luggage Compartment Lid Release.
What do the asterisks (*) mean on this fuse chart?: Items marked with an asterisk apply only to vehicles 'WITH POLICE' (the police package), such as *16 Police Option Fuse Holder and *4 Police Power Relay.