Question about 1996 Chevrolet Impala SS

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Twilight Sentinel Malfunction

Lights quit coming on automatically. I replaced optical sensor under the defroster vent but no help. There is surely a control module this sensor feeds a signal to, but where is it? Lights work fine when operated from dash panel switch.

Thank you,
Dave

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  • tdogt Jan 10, 2009

    I have a 96 Impalass in the shop at Winegardner chevrolet (MD.)with the same problem.My dash light also go out. They are having a hard time finding whats wronge.

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Try a search on www.impalassforum.com. This a very helpful site.

Posted on Feb 15, 2009

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Dim head lamps and day light running lamps won't come on my 2000 Buick lasabre


Daytime Running Lamps
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Does your vehicle have
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The twilight delay switch in the headlamp switch is supplied a reference voltage from the instrument panel integration module (IPM). It is supplied a reference ground from the IPM. The switch is a potentiometer that resistance varies as the switch is moved. The IPM receives an input voltage proportional to the resistance of the potentiometer. The IPM sends a class 2 message to the dash integration module (DIM) indicating the on/off status and delay length for the twilight sentinel. With the twilight sentinel in an ON position, the DIM will automatically control the headlamps on/off status depending on the nighttime/daytime status of the ambient light sensor. The DIM will use the twilight sentinel delay length to know how long to keep the headlamps and park lamps on after the ignition switch transitions from ON to OFF during nighttime conditions.
If you don't know about these things you best bet is to take it to an ASE certified repair shop or the dealer .
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1998 Oldsmobile Aurora Lighting problem-car parked,ignition off,doors locked,unattended,weather normal.parking lights will come on and stay on,by themselves,other times they come and flicker and turn...


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Where is TWILIGHT SENTINEL HEADLIGHT SENSOR mounted


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Can I program the automatic headlights to always shut off when the ignition is shut off - day or night?


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---
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Hi, i have cadillac sedan deville 1994 , the light sensor always read dark , so the exterior lights always on , besides when i open the door and the interior lights goes on , so the exterior lights goes...


hi
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1 Answer

Twilight Sentinal Malfunction


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1 Answer

My headlights come on but my taillights have just stop working.But when I press the brake they come on.What do I surpose to do?


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c304bca.jpg

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