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Day time running lights not working, no headlights at night.

jeffy48jeffy48 Member Posts: 1
edited February 2016 in Chevrolet
New here so go easy on me
Day time running lights work fine , at night they go off and headlights no work. never had a problem with them before . Bought a repair manual but no suggestions there, any here would greatly be appreciated.

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    thecardoc3thecardoc3 Member Posts: 5,751
    Does your "flash to pass" function work? It should command the hi-beams on when the turn signal lever is pulled towards you.

    The headlight switch provides a ground connection for the high and low beams through the headlight relay. They are after the multifunction switch in the circuit. So if the flash to pass works, but nothing else does then you have to test from the multifunction switch through the relay to ground. If the relay isn't turning on, then you will need to test the control side of the relay, which again gets its ground command from the headight switch.
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