What is the function of the fuel cutoff relay?
In looking at the wiring chart, the fuel cutoff relay has three wires. Black which carries current when the ignition is on to the relay. Black/blue which carries current from the relay to the fuel pump. Blue/yellow which carries a signal from the ignition whenever the engine is turning over or running.
When is the fuel pump relay turned on?
The fuel pump relay is activated whenever the ignition is turned on. A fuel pump relay functions primarily to maintain a consistent voltage supply to the fuel pump. The ignition or powertrain control module (PCM) usually controls the fuel pump relay.
What does it mean when a relay keeps clicking?
The clicking noise at the relay indicates that the relay is bad, or that the wires to the relay and/or connector is bad. A relay is an electronically activated switch. Inside is a coil.
Is the fuel pump relay controlled by the PCM?
Consequently, the fuel pump relay is usually controlled by, the ignition or powertrain control module (PCM). As a result, when switched on, the fuel pump relay; will provide current to the fuel pump, so that it may function. Therefore, any faults with it, can cause fuel pump issues.
In looking at the wiring chart, the fuel cutoff relay has three wires. Black which carries current when the ignition is on to the relay. Black/blue which carries current from the relay to the fuel pump. Blue/yellow which carries a signal from the ignition whenever the engine is turning over or running.
The fuel pump relay is activated whenever the ignition is turned on. A fuel pump relay functions primarily to maintain a consistent voltage supply to the fuel pump. The ignition or powertrain control module (PCM) usually controls the fuel pump relay.
The clicking noise at the relay indicates that the relay is bad, or that the wires to the relay and/or connector is bad. A relay is an electronically activated switch. Inside is a coil.
Consequently, the fuel pump relay is usually controlled by, the ignition or powertrain control module (PCM). As a result, when switched on, the fuel pump relay; will provide current to the fuel pump, so that it may function. Therefore, any faults with it, can cause fuel pump issues.