What is EEC relay?
What is EEC relay?
The EEC Power Relay not only supplies battery voltage to the fuel injection computer (also known as the E.E.C. Electronic Control Assembly), but also supplies power to the fuel injectors, the fuel pump relay, and a few other emissions related solenoids. stands for, it’s: Electronic Engine Control.
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.
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.
Can You Back probe an EEC power relay?
You can back probe the EEC Power Relay connector. Or pierce the wire with a wire piercing probe (to see an example of this, click here: Wire Piercing Probe ). NOTE: It’s best NOT to probe the front of the EEC Power Relay’s connector or you run the risk of damaging the metal female connector inside.
What is the low current circuit on a Ford EEC?
Every Ford EEC Power Relay has two basic circuits and for the purpose of our discussion, we’ll call them: A low current circuit. This circuit can be identified by the wires labeled with the numbers 1 and 2. The low current circuit is the control circuit that ‘closes’ or ‘opens’ the high current circuit.
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.
What are the numbers on the EEC relay?
These two wires are labeled with the numbers 2 and 4.. Wire labeled with the number 2 feeds the low current circuit of the EEC Power Relay with 10 to 12 Volts from the ignition switch. Circuit 4 feeds the high current circuit of the EEC Power Relay, but we’ll check this in TEST 2.
You can back probe the EEC Power Relay connector. Or pierce the wire with a wire piercing probe (to see an example of this, click here: Wire Piercing Probe ). NOTE: It’s best NOT to probe the front of the EEC Power Relay’s connector or you run the risk of damaging the metal female connector inside.
Every Ford EEC Power Relay has two basic circuits and for the purpose of our discussion, we’ll call them: A low current circuit. This circuit can be identified by the wires labeled with the numbers 1 and 2. The low current circuit is the control circuit that ‘closes’ or ‘opens’ the high current circuit.
