Check engine light when truck off

[Mch5jdm]

Is it normal that the check engine light is on when my truck is off but in the run position. Just noticed it when I sat out in my truck for lunch break and cycled the start button to the run position so that my radio stays on.

It goes out and has never came on when running.

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[Jako]

Why Run and not Acc for radio? I see join date is April 2019, is that same for truck? What type of shape is battery? My Ram would not come out of 1st gear one day because of an old battery (2 years + old).

 

[Fatherof3]

Is it normal that the check engine light is on when my truck is off but in the run position. Just noticed it when I sat out in my truck for lunch break and cycled the start button to the run position so that my radio stays on.

It goes out and has never came on when running.

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Yes that’s completely normal if you’re in the run position .

 

[Richard320]

Normal.

 

[Mch5jdm]

Thanks. I figured but it was hard to find info on this. Knew you guys would know.


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[Mch5jdm]

Why Run and not Acc for radio? I see join date is April 2019, is that same for truck? What type of shape is battery? My Ram would not come out of 1st gear one day because of an old battery (2 years + old).

It cuts out after 15 min. I joined before purchasing as I was researching the 5G


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