Question about 2006 Hyundai Sonata

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Lights dim and radio and A/C turn off together for about 5 second

I have the same issue. It seems to happen to the lights when i am braking and it shifts into 2nd and 1st gear. The radio and A/C will both turn off together if both running together for a bout 3 to 5 seconds then come back on. I've noticed sometimes when i use the blinker the radio and A/C will do this then. I don't know if it is a coincidence or related. Has anyone figured out what causes this or how it can be resolved.

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Your issues has more than one cause. The shifting into 2nd and 1st are separate to the radio & A/C. The blinker circuit is ALSO separate to the radio and A/C. The electrical system needs to be diagnosed, starting with the battery & charging system... Then look for any bad gound circuits/cables... starting with the battery, then chassis, then any individual power components (TCM, A/C, Lights, blinkers, A/C blower motor & controls, etc.)

Posted on Jun 30, 2009

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