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SES occasionally doesn't come on with key

This is a discussion on SES occasionally doesn't come on with key within the Computer & Tuning forums, part of the LSx Technical Help Section category; Somtimes I notice my SES light doesn't come on with the key. It seems when this happens my car runs/idlesfunky ...

  1. #1
    $ 25,000 panty dropper VENOMOUS's Avatar
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    2005 Ram SRT-10 QC 8.3l
    1999 FRC Black

    SES occasionally doesn't come on with key

    Somtimes I notice my SES light doesn't come on with the key. It seems when this happens my car runs/idlesfunky and doesn't like returning to idle until the car stops. Replaced the bulb also to no avail. Ideas?

  2. #2
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    The PCM controls the SES. Do you have P0650 DTC for the MIL control circuit?

  3. #3
    $ 25,000 panty dropper VENOMOUS's Avatar
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    2005 Ram SRT-10 QC 8.3l
    1999 FRC Black

    Quote Originally Posted by 2001NBMZ28 View Post
    The PCM controls the SES. Do you have P0650 DTC for the MIL control circuit?
    It shows no SES light even when it does come on during startup?

  4. #4
    Senior Member Orcus79's Avatar
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    black
    2002 WS6

    scan the computer for codes, I think some codes won't generate SES/MIL light. Like the code mentioned above.

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