Connecting Battery and Car Tries To Start Without Key In Ignition

Have you experienced your car trying to start when connecting the battery without a key in the ignition? This is a common issue that can be caused by a number of factors.

  • A bad starter solenoid – A bad starter solenoid can cause the car to try to start even when the key is not in the ignition.
  • Starter wiring – The car starter wiring system consists of a starter motor, solenoid, battery cables and switches. The starter motor is connected to the engine block and cranks the engine. The solenoid is a relay that sends an electrical current to the starter motor. The battery cables connect the battery to the starter motor. The switches are used to start the car. If the wiring is damaged, the starter motor may start working. Disconnect the purple wire from the starter, if the start still runs disconnect the heavy red wires from the starter, test the resistence between the large and small terminals on the stater. 
  • Ignition switch – When you turn the key in the ignition, the switch sends an electric current to the starter solenoid, which then activates the starter motor. If there is a problem with the ignition switch, it could cause your car to try to start even when you’re not trying to turn it on.
  • Starter motor– The starter motor is responsible for starting your car’s engine, and if it’s not working properly, it could cause your car to try to start when you connect the battery.
  • Starter relay  – One reason could be that the starter relay is stuck in the “on” position. This relay is responsible for sending power from the battery to the starter, so if it’s stuck on, it will send power to the starter even when the key isn’t turned. This can cause the car to start up by itself.

Table of Contents

Why is my remote starter starting by itself?

Remote starters are a great way to start your car on a cold winter day, but what happens when your remote starter starts your car by itself? There could be 3 reasons why this is happening.

  1. One possibility is that the car’s key fob is being triggered accidentally. This can happen if you have something like a key chain or bag with a lot of metal on it that is close to the fob. The signal from the fob can bounce off of the metal and activate the starter.
  2. Another possibility is that there is something wrong with the remote starter itself. If it’s not working properly, it could be sending a signal to the car’s ignition system that causes it to start.
  3. The third possibility is that there is something wrong with the car’s ignition system.

Can someone else remote start your car?

Remote starters have been around for several years now, and for the most part, they are a reliable way to start your car. But what happens if someone else tries to remote start your car? Can they do it successfully, or will it just end up being a frustrating experience for them?

As it turns out, yes, someone else can remote start your car – but there are a few things you need to keep in mind.

For one thing, the person trying to start your car needs to have the correct remote starter code for your vehicle. They also need to be in close proximity to your vehicle, as most remote starters only work within a certain range.


The connection between a battery and a car can be a tricky thing. Sometimes the car will start without the key in the ignition. There are a few things that could be causing this problem: A bad starter solenoid, starter wiring, ignition switch, starter motor, and starter relay.