Starter Motor Relay Test

Have a helper turn on the ignition switch while you listen to the noise the starter relay makes.

Starter motor relay test.

Fortunately all ford models have a remote relay near the battery which makes it easy and convenient for troubleshooting. 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. Or keep the motor from starting at all. 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 guide will. The starter relay and the neutral lockout switch control the starting solenoid. Starter relay test 1. A remote type relay sits usually near the battery on the fender well and the red battery cable connects directly.

Testing the starter solenoid electric ground. You re just running current through it. 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. Here are warning signs that yours may be damaged.

A bad starter relay on your ford vehicle will prevent the necessary electrical power from reaching the starter motor. Find starter relay you suspect to be bad. If turn on the ignition switch there s a single or a series of weak clicks you will have to test. The starter relay provides power to the starter when the key switch is turned to start the starter.

Not the most scientific test. You will easily find it near the battery and has the battery s positive terminal wire connected to it. 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. These two components work together to ensure that the starter operates safely and does not turn the engine over in an unsafe condition.

Here is a quick video on how to test a starter and solenoid assembly using just a screwdriver jumper wires and a 12v battery. 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. Check the relay s coil terminals using a multimeter. Fail to cut off power.

There is no polarity on the solenoid so it doesn t matter which side is which. The solenoid has two wires that normally connect to the starter button.