We have replaced the starter. The Ignition switch and the tipm module and the engines still will not shut off with the key. You turn the key off and remove and all the gages go off, but the engine is still running, and the key is not in the Ignition. What are their ideas? Can you guys throw at us that we can check. The only way you can turn it off is to remove the fuse for the fuel pump
2010 JKU will not shut off when the key is removed from the ignition
- Thread starter 2010 jk jeepwrangler
- Start date
Since you've already replaced the starter, ignition switch, and TIPM, here are a few more things you might want to check:
Wiring and Ground Connections: Inspect the wiring harness and ground connections associated with the ignition system and TIPM. A bad ground could cause unexpected behavior.
ECM (Engine Control Module): There could be a fault within the ECM that is causing it not to recognize that the key is removed. If the ECM is stuck in a "run" state, that might explain why the engine continues to run.
Neutral Safety Switch: Check the neutral safety switch (if applicable) to ensure it's functioning properly. A faulty switch could send erroneous signals.
Relay Issues: There might be a relay issue in the TIPM that’s preventing the engine from shutting off. Sometimes, relays can get stuck in the closed position, which keeps the engine running.
Faulty Sensors: Investigate the crankshaft position sensor or other related sensors to see if they're sending incorrect signals to the ECU.
Last Resort - Wiring Diagrams: As a last resort, you might need to pull out the wiring diagrams for your model and trace the circuits linked to the ignition system to investigate any anomalies.
Try to work through these suggestions, and hopefully, one of them will lead you to a solution. Good luck!
Linton E
New Member
Is the steering wheel locked? Can you shift gears?
What are you doing about it now?- just letting it run until it’s out of gas?
Thank you, Chris, for the ideas we did work through them last night. Unfortunately, none of those were the problem. We are leaning towards the key cylinder as being the problem, when my husband replace the ignition switch, when I would put the key in the
Key cylinder it seemed harder to turn both auxiliary and to start. It was a hard click click, so I'm thinking, maybe that could be the problem. , but we're having a problem finding a way to remove that. Maybe you can direct us to a good website for direction. Thank you again for your advice.
It could very well be the key cylinder. Let us know what you find after inspecting it.
My thinking is that the key in or out of the ignition is mechanically and electronically activating the controls like shifter, steering wheel lock and the actual start of the motor. You are missing the signal that shuts off the engine. Where is that signal? I am not sure but it may be from the column out to the tipm or ecm. Also look at the output from the ecm and tipm. the kill signal is not making it to the right spot.
Some other things to look at, do the other "run" functions work with the key out and engine still running, for instance any switched cig lighter receptacles? or even the radio, windshield wipers?
check fuses that are "hot in RUN" but should lose power when the ignition is OFF fuses M6, M7, M37 and M13 in the tipm. These are according to my 2007, yours may be different numbers but they are PCM Power, ASD - Auto Shutdown Relay, Ignition Run/Acc circuits, Fuel Pump / Injectors. those should lose 12v power when key is in off position or out of ignition.
check fuses that are "hot in RUN" but should lose power when the ignition is OFF fuses M6, M7, M37 and M13 in the tipm. These are according to my 2007, yours may be different numbers but they are PCM Power, ASD - Auto Shutdown Relay, Ignition Run/Acc circuits, Fuel Pump / Injectors. those should lose 12v power when key is in off position or out of ignition.
After you pull the fuse for the fuel pump and the engine stops what then? You put the fuse back in at some point. Does the fuel pump have power before you put the key in the ignition?? It shouldn't... There very well may be multiple things happening here, but I would start with understanding what's happening with the fuel pump.
You should be able to put the key in and turn it to "accessory" which, among other things, powers the fuel pump, and then turn it back to "off". I would try this without starting the engine to understand if the fuel pump cycles on and off properly before the engine is running.
You should be able to put the key in and turn it to "accessory" which, among other things, powers the fuel pump, and then turn it back to "off". I would try this without starting the engine to understand if the fuel pump cycles on and off properly before the engine is running.
Yes, the fuel pump does cycle when you just turn the key to the auxiliary position.And yes we remove the fuse for the fuel pump. Because the engine will not turn off with the key. Our next step, after all the other things we've done is to replace the Tumblr for the where the key goes in, we're going to see if that is worn out, it is a 2010. These things have not been replaced. So yes, things start wearing out, we're just doing a power of elimination at this point. Thank you for your points, though.It's much appreciated
Try spraying dry graphite powder into the tumbler to lubricate it. It might take a few times to lube everything. I had an old 84 Honda Prelude that would not shut off with the key. I used graphite powder you use for your homes door knob key hole and sprayed it in the tumbler. I wiggled the key up down in and out and it worked.
Another thing to double check is, are you sure the starter is disengaging after it starts the Jeep? Could be constant power to the solenoid keeping it engaged.
Another thing to double check is, are you sure the starter is disengaging after it starts the Jeep? Could be constant power to the solenoid keeping it engaged.