Questions & Answers for: Plymouth Neon how to test relays

...at injectors. fuse and relay both good. changed pump and filter. 4 wire connector at pump doesnt test anything. Any thoughts? Some cars have a safety fuel shutoff in case of collision, sometimes ...

...or is it more than that? There are a few things that it could be. The horn is defective. You can test it by hooking 12v to it directly. The relay is defective. The horn switch is defective The

relays in front of the radiator and are fine anymore ideas what it could be It does have a fan switch, it looks like a bolt head with 2 wires on it. It will be on the radiator near the bottom. Connect

...starter does not engage try starting it in neutral once, then check the starter relay,then with a test light check for power at starter solenoid while someone tries to start

...light and you will be able to scan and retrieve keep me posted.John Found a "failure to start test" procedure for you at: ...

...test good but have a short in the engine ignitin feed Even though the alternator tested good it still may be your problem. Unhook the alternator power wire and let the car set for the amount of time ...

my 2001 neon wont start and the asd relay in the fuse box is making a clicking noise. i replaced the starter , new battery tested the alternator what could be the problem have you checked for voltage ...

...test light to find the one hot terminal. If no terminal has power there could be a failed fuse link or maxi-fuse that feeds the relay. If one terminal does have power, then swap relays to check that ...

...test computer transistor driver without scan tool Electric Testing Techniques You Need to Know Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts VEHICLE RELAYS Testing from the ...

...fuses and relays -if new bring back to installer have them repair --if new and you install recheck your wiring and motor hook up linkage also test switch and motor new doesnt mean free from ...