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SC430 - 2nd Gen (2001-2010)

AFS Warning light

 
Old 03-17-19, 03:37 AM
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s19sly
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Question AFS Warning light

New owner and loving it. After 10 to 20 miles driving the Warning light starts to flash and the system goes u/s. If I stop, turn off and restart it clears and works again for another 10 to 20 miles...Any ideas?
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Old 03-17-19, 03:48 AM
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VVTiBob
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Two thoughts come to mind. The AFS was accidentally turned off, check the button. Or, corrosion in the Sensor meaning, it needs service.
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Old 03-17-19, 03:51 AM
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Also, welcome to the forum. Please read this...https://www.clublexus.com/forums/sc4...430-forum.html

the SEARCH tool really is terrific for finding answers. I just typed in AFS on the standard search and came up with several prior threads with two possible solutions.

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Old 03-17-19, 03:52 AM
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s19sly
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Thanks for the Super Quick reply.

The button is operating fine so it looks like option 2, which is frustrating as it was in at Lexus for a Airbag recall last week....

Never mind...thanks again for the info.

Best.
Nick
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Old 03-17-19, 08:11 AM
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Welcome to the forum. Post some pictures when you get the chance and let us know what you find out about the problem.
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Old 03-17-19, 09:43 AM
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DshngDaryl
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Originally Posted by s19sly View Post
New owner and loving it. After 10 to 20 miles driving the Warning light starts to flash and the system goes u/s. If I stop, turn off and restart it clears and works again for another 10 to 20 miles...Any ideas?
What is AFS? What is U/S?
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Old 03-17-19, 09:50 AM
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VVTiBob
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Lexus's Intelligent Adaptive Front Lighting System, is a driver-aid that adjusts the direction of the headlights in response to steering inputs and vehicle speed, in effect pointing the low-beam headlights into the corner and improving your view. 2006 and greater SC430s.

U/S? ya got me there.
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Old 03-17-19, 09:52 AM
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s19sly
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Adaptive Front Lighting is AFS, u/s Means Unserviceable, a posh way of saying, not working
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Old 03-17-19, 10:07 AM
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Two issues regarding AFS switch and speed of the vehicle. Switch has what some might consider reverse or backwards operation. See position two & three in the diagram.






Last edited by VVTiBob; 03-17-19 at 04:22 PM.
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Old 03-18-19, 11:23 AM
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DshngDaryl
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Originally Posted by s19sly View Post
Adaptive Front Lighting is AFS, u/s Means Unserviceable, a posh way of saying, not working
It sounds like this would be a good time to ask if you have ever heard of Techstream? That is the Toyota software that will let you read Lexus/Toyota error codes. It is very affordable if you buy it off eBay.

If you are interested in fixing this problem yourself (or just about any problem with your Lexus) you should do a search on this forum and find out how you can get a copy.
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