The best way to tell if a starter is getting power is to use a volt meter. Put the positive lead of the volt meter to the largest ( power ) cable attached to the stater and the ground lead to the chassis. Have a friend turn the key to the start position and see if you get at least 12 volts. If the starter clicks it is getting power and chances are your starter solenoid has failed. Before doing all this it is best to inspect the grounds between your engine and the chassis. Make sure the ends and the places where they are mounted are clean. Make sure the grounds are not excessively frayed as lack of ground will cause the starter to turn slow or not at all.
3 reasons either the starter is not getting power from the solenoid, solenoid is not getting power from the battery or starter is burned up.
If the starter does not turn then it could either be bad or not getting power. If a volt meter can not be used to determine that voltage is present, then the starter can be pulled and taken to be tested.
Remove starter and bench test See if you are getting power to starter
the starter isn't getting power or the battery is dead. do some tracing of the power and see where it isn't getting juice
You should check the battery if it is good. Try checking to see if the power is getting to the starter when you push the button if not it might be a falty relay .If power is getting to the starter (12 volt . If less check power going into your relay ) starter may need to be replaced or repared.
Does the engine crank over?
Check your Starter relay to make sure it is getting power if it is cceck to see if the decoder is getting power if both are getting power follow the starter wire to the starter selinoid if it is getting power then check all fuses and ground wires to make sure that it has good connection be sure to check the maix fuses also
Good power all the way to the starter, 12 volts at solenoid/start circuit wire when key engaged, but no click or starter engage
It means you aren't getting fuel to the motor but you are getting spark.
chances are it's your starter solenoid. test current strength to see if power is getting past the solenoid to the starter.
Sounds like a defective starter, but check your battery cables and connections. Make sure you are getting power at the starter when you turn the key to the start position. Could be a relay too.
Check for power at the clutch switch, then check for continuity through the switch with the clutch pedal depressed. If there is power and continuity, then the starter (or even ignition solenoid/starter relay) is the problem.