Where is the fuse box on a 1991 F150?
Where is the fuse box on a 1991 F150?
For the Ford Pickup F-150 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 model year. Fuse box location. The fuse panel is located on the instrument panel behind access door, to the left of the steering column.
What causes missing voltage on Ford EEC relay?
These 10 to 12 Volts are provided by an inline fusible link (on the starter motor solenoid) or by a mega fuse on the engine compartment fuse box. The most common cause of this missing voltage will be that the inline fusible link or the mega fuse is blown.
What’s the color of the EEC power relay?
The EEC Power Relay is easy to recognize because it’s usually a brown color. If the EEC Power Relay has already been replaced, you can still recognize it by its brown colored connector. In this ‘How To Test’ article, I’ll show you how to test it on your Ford car or pickup in a step-by-step manner.
How do you Back probe a power relay?
Remove the black electrical tape and expose the relay’s wires. Locate the wire that corresponds to circuit number 2. With your multimeter in Volts DC mode probe the wire that corresponds to circuit 2 . You can back probe the EEC Power Relay connector.
Where does the power come from in the Brown relay?
Power (in the form of 10 to 12 Volts) is applied to circuit 2 . This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender).
Where does the power come from on a Ford EEC relay?
This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender). Ground is always present on circuit 1.
The EEC Power Relay is easy to recognize because it’s usually a brown color. If the EEC Power Relay has already been replaced, you can still recognize it by its brown colored connector. In this ‘How To Test’ article, I’ll show you how to test it on your Ford car or pickup in a step-by-step manner.
What are the numbers on the fuel pump relay?
A high current circuit. This circuit can be identified by the wires labeled with the numbers 3 and 4. This is the circuit that delivers the voltage (and thus current) to the fuel injection computer (EEC Electronic Control Assembly), fuel injectors, fuel pump relay, etc.
Power (in the form of 10 to 12 Volts) is applied to circuit 2 . This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender).
