Starter Motor Relay Test

You will easily find it near the battery and has the battery s positive terminal wire connected to it.

Starter motor relay test.

When you start your engine and release the key or stop pressing the starter button on a modern vehicle the circuit is supposed to close which will discontinue power to the starter motor. These two components work together to ensure that the starter operates safely and does not turn the engine over in an unsafe condition. This will prevent the starter motor from accidentally starting the engine during your tests. Starter relay test 1.

If the starter stays on after the engine has ignited the main contacts in the starter relay have most likely welded together in the closed position. The starter relay and the neutral lockout switch control the starting solenoid. Have a helper turn on the ignition switch while you listen to the noise the starter relay makes. Fail to cut off power.

Not the most scientific test. Here are warning signs that yours may be damaged. To check the relay whether it s good or faulty one we need to check the resistance of a coil in the relay there is a coil and that coil has some resistance using that resistance knowledge we can find that the relay is a good one or not. A remote type relay sits usually near the battery on the fender well and the red battery cable connects directly.

The starter relay is designed to redirect power from the battery to the starter solenoid which then activates the starter to spin over the engine. Or keep the motor from starting at all. Testing the starter solenoid electric ground. Open the hood and locate the solenoid the small cylinder on top of the starter motor.

Check the relay s coil terminals using a multimeter. How to check a ford type starter solenoid relay diy troubleshooting car no crank automotive repair easy step by step diy testing a ford solenoid. This first test is designed just to see if the contactor is pushing up and completing the connection in the solenoid. The starter relay provides power to the starter when the key switch is turned to start the starter.

A bad starter relay on your ford vehicle will prevent the necessary electrical power from reaching the starter motor. Fortunately all ford models have a remote relay near the battery which makes it easy and convenient for troubleshooting. The solenoid has two wires that normally connect to the starter button. Find starter relay you suspect to be bad.

This guide will. Here is a quick video on how to test a starter and solenoid assembly using just a screwdriver jumper wires and a 12v battery.