Fuel pump relay diagram. Fuel pump relay if starting up your cars engine is taking longer than usual then maybe its time you checked on the fuel pump relay. Remove the fuel pump relay from the fuse box. If a fuel pump relay diagram is not available the individual needs to look at the relays mounting base to identify the terminals. This plastic encased unit is usually located near the steering column under your cars dashboardthe relays main job is to power the fuel pump once you turn the key in the ignition.
Wiring diagram review of a fuel pump relay circuit in my classroom a scannerdanner premium segment how to measure fuel pump current what sets a fuel pump relay control trouble code. Play attention to how the relay comes out as the new one needs to go in the same way. On your web site it shows this diagram with 85 going to ground. Fuel pump inertia switch diagnostictroubleshooting notes.
It states 86 goes to ground. Once you open up the fuse box you can use the diagram on the fuse box cover to find the fuse to the fuel pump relay. The dk grnyel wire. The practice of wiring the fuel pump through an external relay has two objectives.
A fuel pump relay is a setup used in automobiles to maintain a consistent voltage supply to the engine. The two thinner wires that connect to the relay supply the control circuit terminals while the two thicker wires supply the power circuit terminal according to ebay. This is an expensive failure to repair. This consistency ensures a steady flow of fuel to the engine.
That the computer is grounding the relays low current circuit. Fuel tank select switch wiring diagram. In the wiring in the fuel pump relay 2. The fuel pump relays high current circuit wire 4 is getting power.
Fuse box diagram locate fuses and relays. Some circuit traces inside may burn open if a pump or other component has problems. Power steering control module servotronic if fitted 3. To protect the computer from over current damage.
Should have 10 to 12 volts dc while cranking the engine if the inertia switch is not tripped. Horn relay dual tone. I am a non wiring person i have a bosch relay 0 332 209 150 896. An automobile can have a long life if the engine receives consistent flow of fuel and air especially during high speed driving.
Fuel pump relay wiring diagram. Should have 10 to 12 volts dc while cranking the engine. This power comes from the fuel pump relay. How to re wire a fuel pump off a relay.
That the fuel pump does come on and is producing the correct fuel pressure specification 35 to 45 psi. How do i wire a fuel pump relay.