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Unread 12-18-2013, 06:18 PM   #16
michiganmike
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2008 WK 
 
Join Date: Mar 2013
Location: Battle Creek, Michigan
Posts: 17
Thanks for the comment.

I read on another Forum, a suggestion to disconnect the battery for ten minutes or more. I tried that and it seemed to work, but the next day the lights are still low.....I can drive with the high beams on , no one notices.
I dread taking it to any Dealer with the question " Do you have any experience working on HID lighting systems and automatic headlight leveling?"

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2008 WK Grand Cherokee Overland
Stock Stuff...HEMI,Skid Plates, Quadra-Drive II, HID's
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Unread 03-05-2014, 11:06 PM   #17
SilentDrifter
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2008 WK 
 
Join Date: Jul 2011
Location: Colby, Wisconsin
Posts: 25
So my Jeep is doing the same thing, where the headlights are pointing down. If I go in the front of my driveway, which from all the snow, sits about a foot higher than the road. It can sort itself out, due to the angle of the Jeep.

Assuming it's the module, that sits underneath the passenger headlight, that's causing this issue. Can I just order this part #55079008AG, and it should start working correctly?

Edit: I disconnected the negative cable from the battery, and installed the module, that I linked to above. After putting everything back together, started it up, and everything is working just fine now. Headlights seem to be aiming correctly now. Now I'm not sure if I could have just unhooked the battery, to see if that could have reset it that way. Either way it's working now, so I'm happy.

Last edited by SilentDrifter; 03-16-2014 at 08:51 PM..
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Unread 04-13-2014, 02:40 PM   #18
brew1
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2008  
 
Join Date: Dec 2009
Location: Wisconsin
Posts: 31
Quote:
Originally Posted by tfgnt16 View Post
What I did was disable the system altogether. They key is disconnecting the AHLM control unit from the bottom of the passenger's side headlight housing; you'll have to remove the grill and lower the front fascia a bit to get the headlight out. Make sure you disconnect the battery, working with HIDs and any module that interfaces with the CAN bus shouldn't have any power going to them. Once you remove the headlight assembly, flip it over and you'll find a metal cover about 4 inches by 3 inches on the bottom. Remove the screws and the metal cover, then lift the control module out of it's housing, taking note of the rubber sealing grommet that water seals the bottom of the headlight assembly. Disconnect the wiring harness from the module, and throw some heat wrap or electrical tape around it. Put the module back in place making sure the seal is in properly and put everything back together. Align the headlights using the white manual adjustment screw at the top of the housing and you're all set. Now you have a "normal" set of headlights without the auto leveling.

Just so everyone knows, I've been running this way for two weeks and haven't had any codes or any other behavior from having the AHLM disconnected. I realize this isn't a fix, but at least my headlights shine straight ahead and aren't blinding drivers in front of me, or pointing down at the ground five feet away. Come warmer weather I'll probably reconnect the AHLM and have the dealer swap out the system since I'm still under warranty. Considering the snow has come, I'd like to keep the Challenger in the garage for the rest of the season, leaving me with nothing but the Jeep for a DD.

I'm considering following the above procedure on my 2008 GC Overland and was wondering if after manually adjusting the low beams, did you still have properly functioning high beams?

Thanks~Mark
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Unread 04-13-2014, 05:15 PM   #19
08CanuckCRD
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2008 WK 
 
Join Date: Mar 2014
Location: Kitchener, Ontario
Posts: 53
The headlights on my 08 WL Limited CRD were pointed at the ground too. I found the adjusters for aiming (on mine an allen key on top of each headlight assembly). Found a nice level parking lot with a convenient wall and reaimed the headlights. No problems since. High beams working properly too.
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