Key ignition not working properly

2010 CHEVROLET SPARK
281,000 MILES • 0.8L • 3 CYL • 2WD • MANUAL
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TEAMBSI
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Please help with my key ignition that would not switch of after I started my vehicle.
Apr 1, 2020 at 10:29 AM
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KASEKENNY
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Can you help me understand the issue a little better? Are you saying that the vehicle started and then when your turned the key off, the vehicle did not turn off?

If this is the case, then your ignition switch is most likely the issue. Unfortunately we don't have a service manual for your vehicle as it is not offered here in the USA but if I understand this issue correctly I will look for a comparable vehicle and see if I can send that process to you.
Apr 1, 2020 at 3:55 PM
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TEAMBSI
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Hi yes, you understand correctly. Thanks will wait on the information.
Bernard
Apr 1, 2020 at 3:59 PM
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KASEKENNY
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Okay. If the engine keeps running when you switch the vehicle off then the PCM is not getting the turn off signal. The most likely cause is the ignition switch is faulty. I attached the process on how to replace this with a Chevy Aveo which is a very similar model here in the states.

Clearly it is not going to be exact but it should be similar.

The way to confirm this is the issue is to hook up a scan tool that can monitor the PCM signal from the ignition switch and see what the PCM says when you turn the key off. Clearly it should show you that the ignition is turned off. If it stays on then the PCM is not getting the switch change.
Apr 1, 2020 at 5:16 PM
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TEAMBSI
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Okay thanks for the information, will check it out.
Bernard
Apr 2, 2020 at 12:13 AM
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KASEKENNY
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Sounds great. Let us know what you find and how it turns out. Thsi would be a good update and solution for others if they have the same issue. Thanks
Apr 2, 2020 at 4:21 PM