Hi!, I' d like to install HID for 2007 uplander. How to disable DRL module? Please give some advice. There is not any fuse under hood for DRL and the module is under the dashboard. How to get there?

You should have a DRL relay under the hood. You should be able to bend the prong labeled "86" and disable them.

Found an explaination on the DRLs.

AUTOMATIC LAMP CONTROL (ALC)

The normal headlamp switch operating position is AUTO, which enables the automatic lamp control (ALC). For ALC operation, the body control module (BCM) receives a signal from the ambient light sensor indicating a low or high ambient (outside) light level. The ambient light sensor is a light sensitive transistor that varies its voltage signal to the BCM (http://library.alldatapro.com/alldata/LIB~C40264~R0~OD~N/0/108596970/108596971/110536824/110536827/34853741/92093561/100406664/100406665/56192131) in response to changes to the ambient light level. The BCM uses multiple inputs to determine daytime running lamp (DRL) or headlamp low/high beam operation. When the ignition key is turned to the RUN position the BCM determines the light/dark ambient light condition and activates the headlamps or DRL mode immediately. When a transition to the light/dark ambient light condition occurs after the ignition is in the RUN position there is an approximate 30-second delay in the headlamp/DRL transition.

The ALC System also has a defeat feature and a wiper activated headlamps feature. To operate the ALC defeat, turn the headlamp switch counter clockwise one position past the AUTO position after starting the vehicle. This is a momentary switch position, and will return to the AUTO position. This action sends a temporary ground signal to the BCM (http://library.alldatapro.com/alldata/LIB~C40264~R0~OD~N/0/108596970/108596971/110536824/110536827/34853741/92093561/100406664/100406665/56192131) requesting a change of states for the ALC. If the ALC is currently ON it will switch to OFF, and if the ALC is currently OFF it will reset the ALC to ON.

The wiper activated headlamps feature is enabled anytime the ALC is enabled. When the front windshield wipers have been activated for approximately 30 seconds , and the ALC is in the DRL mode, the BCM (http://library.alldatapro.com/alldata/LIB~C40264~R0~OD~N/0/108596970/108596971/110536824/110536827/34853741/92093561/100406664/100406665/56192131) will switch to headlamps ON.

Hi, Brent, How are you?

I installedHID without changing anything, works perfectly.

Ihave another question. Do youwant to install HHO hydrogen generator (Water4Gas) in your car? How safty?

Lennyhttp://pics.ebaystatic.com/aw/pics/s.gif

We have a thread going on about that in the off topic section if you want to check it out.