no power to my ignition
- Thread starter jessedean
- Start date
greg92jeepxj
Official Supporter
Welcome to JEEPZ.com . Not knowing what year , model or engine , I would say to start at the power distribution center under the hood and also check under the dash as well for any and all fuses that may be blown. Make a note of what is for reference since that is what circuit you'll need to diagnose. It is best to use a test light to probe both sides of a good fuse to make certain that both sides of the circuit are live and there is continuity. If only one side is live ( power feed) then that would mean a short or open. If you are testing with the ignition on it is best to use a computer safe test light if your not sure that circuit may be a pcm circuit. Be sure the battery is fully charged. Your post read that all power was lost . First look for the ignition fuse(s) since this is the feed for the ignition switch. If there are no blown fuses or replacing a blown fuse dosen't get the starter cranking and no fuses blow again then you will have to check if the starter cranks . With a 12 volt test light , check for battery voltage at the positive cable to the starter ( the big post ). If the ignition switch won't crank the starter , try connecting the big post on the starter to the small post ( solenoid terminal ) with a small screwdriver across the two to crank starter . Do this just long enough to test starter. It's supposed to be done with a proper remote starter so be careful not to touch anything else. You would really need to check the wire to the small post for voltage when ignition switch is held to confirm ignition switch is working . If you do not get any power and fuses are good and nothing has blown again , you will have to look for power at the ignition switch under the dash on the steering column . There are starter relays as well but look for fuses first since relays are fed from fuses as well as switches .
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