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99 montana headlights won't turn off


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andies
New User

Nov 21, 2013, 4:24 PM

Post #1 of 4 (3067 views)
99 montana headlights won't turn off Sign In

Hi All, I have a 1999 Pontiac Montana. I've had it for several years. Did not buy it new, and was like this when we bought it. I can not turn off the headlights while the van is running.
Anybody got an answer for this?
Thanks Andie


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 21, 2013, 5:04 PM

Post #2 of 4 (3053 views)
Re: 99 montana headlights won't turn off Sign In


Quote
The DRL control module is designed to automatically operate the exterior lights depending on the outside light conditions.

The DRL control module operates in the following 2 modes:
^ The day mode
In the day mode, the DRL ambient light sensor senses daylight then the DRL control module activates the front turn lamps (non-flashing) under the following conditions:
- The ignition is in RUN.
- The headlamps are OFF.
- The park brake is OFF.
^ The night mode
In the night mode, the DRL ambient light sensor senses darkness turning off the front turn lamps and turning on the headlamps through CKT 10.
Also in the night mode, the DRL ambient light sensor activates the following lamps through CKT 9:
- The park lamps
- The side marker lamps
- The license lamps
- The tail lamps
- Voltage is also fed back through CKT 9 to the headlamp switch assembly to control IP dimming.






Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


andies
New User

Nov 21, 2013, 5:49 PM

Post #3 of 4 (3049 views)
Re: 99 montana headlights won't turn off Sign In

does this mean I can't turn the lights out at night when my car is idling?


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 21, 2013, 5:56 PM

Post #4 of 4 (3046 views)
Re: 99 montana headlights won't turn off Sign In

Pretty much. Unless you shine a flash light on the light sensor or you drive around with the parking brake on. Guess you can't be sneaking in late at night...LOL





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 21, 2013, 5:58 PM)






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