Headlight low beam issue
Driver School Candidate
Joined: Dec 2018
Posts: 3
Likes: 0
From: Ny
Low beam nightmare
Bringing this back from the dead... Is this the Engine-2 Relay Block? I'm in a situation with my '07 where I've replaced the Headlamp Assembly, Ballast/HID ECU, Bulb, Engine-1 Relay Block, and Engine-2 Relay Block, but am not getting power to the Pass Low Beam. I've tested the headlamp is good when connected to the other side, so something is not getting power to the HID Connector plug (gray lower). Is there something I am missing? This low beam is the only thing keeping me from passing inspection. It's frustrating to see this car sit for what should be a simple, not to mention much less expensive recurring problem, especially since I have replaced seemingly everything but the wire harness.
Hey, it feels like I have the same issue as you once did. I’ve bought new HIDS, ballast, and checked the fuses, only to see they were fine. What was the culprit once I were done? Was it the engine two relay block? I’m at a loss here for how to get the darn lights to work!
i really appreciate any assistance you can provide.
Gancoob
Driver School Candidate
Joined: Dec 2018
Posts: 3
Likes: 0
From: Ny
Part number
Another update--
The relay part that was brought in was not the correct item. Ended up having to replace a junction box that contains multiple relays that are integrated to this piece. One of these integrated relays was the culprit. $300 part. Had to wait a little longer, at least now its done and back to normal
The relay part that was brought in was not the correct item. Ended up having to replace a junction box that contains multiple relays that are integrated to this piece. One of these integrated relays was the culprit. $300 part. Had to wait a little longer, at least now its done and back to normal
Putt, do U have the integration relay part number? It feels like I’m in the same situation as you were. I’d rather not have the dealership spend 6 hours working on this! I’ve already replaced enough and invested enough time in this low beam saga!
Thanks.
Gancoob
Instructor
Joined: Jun 2010
Posts: 1,026
Likes: 52
From: Florida
Ok, I had the same issue and I chased gremlins for 2 hours to no avail. Checked my tech manual and it leads to the relay in block 2 which is somehow intergrated and the entire thing has to be changed out. I did something to get it to work and its been working for about 6 months now. By all means, what Im about to say is strictly at your own risk. I will not be held responsible for anything that happens to anyones car.
My solution, both headlights have individual fuses. I simply jumped power from one fuse to the other. Took a small cable, inserted into where the fuse blade goes, reinstalled the fuse and did the same thing into the fuse of the non working light.
I know this isnt the appropriate fix but its a temp fix for anyone just to get by.
My solution, both headlights have individual fuses. I simply jumped power from one fuse to the other. Took a small cable, inserted into where the fuse blade goes, reinstalled the fuse and did the same thing into the fuse of the non working light.
I know this isnt the appropriate fix but its a temp fix for anyone just to get by.
Driver
Joined: Nov 2014
Posts: 77
Likes: 6
From: of Confusion
Ok, I had the same issue and I chased gremlins for 2 hours to no avail. Checked my tech manual and it leads to the relay in block 2 which is somehow intergrated and the entire thing has to be changed out. I did something to get it to work and its been working for about 6 months now. By all means, what Im about to say is strictly at your own risk. I will not be held responsible for anything that happens to anyones car.
My solution, both headlights have individual fuses. I simply jumped power from one fuse to the other. Took a small cable, inserted into where the fuse blade goes, reinstalled the fuse and did the same thing into the fuse of the non working light.
I know this isnt the appropriate fix but its a temp fix for anyone just to get by.
My solution, both headlights have individual fuses. I simply jumped power from one fuse to the other. Took a small cable, inserted into where the fuse blade goes, reinstalled the fuse and did the same thing into the fuse of the non working light.
I know this isnt the appropriate fix but its a temp fix for anyone just to get by.
Replacing relay block 2 has been determined to be the correct repair for this issue and is now a common procedure. Please do not endanger yourselves by attempting the fix detailed above for any electrical problem.
Driver School Candidate
Joined: Apr 2019
Posts: 1
Likes: 0
From: Tennessee
Low beam
I have a 2007 Lexus Ls460 and my lights were quivering then they started going off and on not off at the same time then a couple days later I noticed that the headlights didn't come on at all change the headlights still didn't come on check my fuses with a fuse indicator. The headlight fuse indicator didn't light up for the low beam headlights so what do you guys think is wrong I appreciate any help.
Thanks in advance
Thanks in advance
Driver
Joined: Nov 2014
Posts: 77
Likes: 6
From: of Confusion
Click here for the definitive thread and see post #19 for the part number and fix.
Last edited by tlk2megoos; Jun 29, 2019 at 06:05 AM. Reason: Added links
Thread Starter
Advanced
Joined: Jun 2013
Posts: 596
Likes: 7
From: Hawaii
The relay is integrated into the fuse box. You check power to the HP-LL R and HP-LL L fuses. No power to either even after switching/replacing fuses confirms it.
Click here for the definitive thread and see post #19 for the part number and fix.
Click here for the definitive thread and see post #19 for the part number and fix.
the relay integrated into the fuse box is what I had to change
Driver School Candidate
Joined: Jun 2019
Posts: 4
Likes: 0
From: az
Driver
Joined: Nov 2014
Posts: 77
Likes: 6
From: of Confusion
I quite literally spoonfed you the answer. Click on my link, see post #19 with the part number and what it looks like both in and out of the engine bay.
Driver School Candidate
Joined: Jun 2019
Posts: 4
Likes: 0
From: az
Driver School Candidate
Joined: Nov 2019
Posts: 1
Likes: 0
From: Nevada
Noticed my passenger side HID low beam went out about a week ago... 2008 ls460, out of warranty
1 - changed HID bulb, still out
2 - checked applicable fuses in fuse box in engine compartment, all seems fine
3 - changed to new ballast, still nothing
All the other lights in the headlight are operating fine, only the low beam is still out. Somehow the ballast is not receiving power
Anyone ever encounter this or heard of something ? Pretty much ready to turn it over to my indy mechanic or the dealer if necessary
1 - changed HID bulb, still out
2 - checked applicable fuses in fuse box in engine compartment, all seems fine
3 - changed to new ballast, still nothing
All the other lights in the headlight are operating fine, only the low beam is still out. Somehow the ballast is not receiving power
Anyone ever encounter this or heard of something ? Pretty much ready to turn it over to my indy mechanic or the dealer if necessary
that’s the engine relay and should be the last thing I fix.. got it for $140 with shipping and tax from eBay.
I will I’ll let you all know if it fixes my low beam. All other lights work fine. I have a 2007 LS460L.