Shops are reporting a problem with the GM “twilight sentinel” system on Buick Park Avenue vehicles. Owners report that the headlights will not turn off.
Start your diagnostics by unplugging the head lamp switch connector from the switch. If the headlights now go out, replace the head lamp switch.
Get a new headlight switch from Amazon.com. Standard Motor Parts #DS717 fits Buick Park Ave & Park Ave Ultra from 1997-2005
If the lights do not go out, check the white wire at the lamp driver module (located under the center of the instrument panel) for a short to ground pin J and pin B1. If the white wire is not shorted, the problem is in the lamp control module. Replace it.
For more information on this repair or any others for your vehicle, buy an online subscription to either Alldatadiy.com or eautorepair.net. Click on this link to compare the two services: Compare Alldata and Eautorepair.
If you just need information for a single repair and want to save money,eautorepair offers a lower price 1-week subscription for only $11.99. Or, if you’ll be working on this vehicle in the future, you can buy a 1-year subscription (Alldatadiy.com for $26.99, or eautorepair.net $29.99)
© 2012 Rick MuscoplatPosted on by Rick Muscoplat