Why does my car stop when the key is turned off?

Why does my car stop when the key is turned off?

The engine stopped like the key was turned off. No dash lights, no head lights, nothing that I can find on the chassis has power. Tried to switch my house batteries over to start engine, no luck, not even a light on the dash. Checked the engine and house batteries and they both read more than 12.6 volts.

How do you check battery voltage with ignition off?

With ignition off, verify battery voltage at one large lug. Turn on key. You should hear the solenoid “click” and will have that same voltage at the other large lug. If not, either the solenoid is defective or is not receiving the signal from the ignition switch.

What are the symptoms of a bad ECM power relay?

A bad relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery drain or dead battery. A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off.

How can I tell if my ignition switch is bad?

If not, you have a problem in the ignition switch, wiring from switch to solenoid or bad fuse. An alternate test is to remove the signal wire and use a small jumper wire from the “always hot” lug to the signal terminal. It will be carrying very little current, so a small wire works fine. If no click and no power to other large lug, bad solenoid.

What to do if your car won’t start when you turn the key?

No voltage going to the switch when key is turned to start. Bypass the cluth safety switch with a metal paperclip into the two terminals of the harness that plugs into it to test if that switch is intermittently failing, and check the switch’s white plunger.

What does no crank, no start mean?

No crank, no start. Typical story, was driving fine, then parked it and next time I went out to start it: nothing. No click, no nothing. Hit up the usual suspects first, took a look at the starter and found the grounding strap between the solenoid and starter was almost gone.

A bad relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery drain or dead battery. A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off.

What did no click, no start mean?

No click, no nothing. Hit up the usual suspects first, took a look at the starter and found the grounding strap between the solenoid and starter was almost gone. Must be that, I thought. After 180K miles it’s time for a new starter anyways, so replaced starter.