How do you check voltage on a relay?
The only tool required to check a relay is a multimeter. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located).
How do you test a pump relay?
How to test a fuel pump relay
- Park the car in safe and level ground.
- Step 2: Turn the ignition key in the ON position but don’t start the car.
- Step 3: Raise the hood and locate the fuel pump relay.
- Step 4: The fuel pump relay will emit a clicking or buzzing sound when turning the key in the ON position.
How do you test the voltage of a relay?
Test the relay’s voltage at the switch. Bad contact points can cause a voltage drop. Remove the test light, set the multimeter to DC volts, and touch the leads across the switch pins or test light connectors, as shown. The reading should match the battery voltage.
How can I check the voltage of my fuel pump?
Establish the location of the fuel pump relay on the dashboard or the engine compartment. Remove the relay and have some one switch on the ignition without starting the engine. Check for voltage at the relay connector using a digital multimeter.
What kind of test is an anti pump relay?
One of those tests is the Anti-Pump relay test, or the “Y” Relay test. This is such an easy, yet very important test that can be performed in a matter of minutes. Typically there is some type of circuit breaker test station in a substation or switchgear room.
How to test the Ford fuel pump relay?
In this test section, you’re gonna’ check that the fuel pump relay is sending voltage to the fuel pump. You’ll check for this power (10 to 12 Volts DC) right at the fuel pump relay connector (and with the fuel pump relay connected to the connector).
https://www.youtube.com/watch?v=BJwfMSQ50Eo