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OBD-II / DLC3 pinouts (headlight leveling system problem)

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Old Dec 18, 2011 | 06:59 PM
  #1  
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Default OBD-II / DLC3 pinouts (headlight leveling system problem)

Does anyone have the pinouts for the DLC3 connector on the SC430 (2003)?

It's the OBD-II connector, but the service manual refers to it as the DLC3 connector.

I replaced my headlight leveling sensor on the back axle this weekend.

However, instead of getting an intermittent headlight-failure lamp...I'm getting a constant one.

Found a link to a set of instructions that says after replacing the sensor, I need to short "XDA and CG terminals of the DLC3 connector and operating the light control switch."

Here's the link to the article. Granted, it's for a Prius, but it's still the Toyota headlight leveling system. And a search for SC430-specific stuff turned up ziltch.

Any help on this would be greatly appreciated.
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Old Dec 19, 2011 | 08:15 AM
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I've searched through my printed and pdf versions of the manuals and cannot find a pinout connector chart for the DL3 connector... Looks like TIS may be your solution. But here's the more specific HL system info on our cars.
Regrets,
Bob
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Last edited by VVTiBob; Dec 19, 2011 at 08:21 AM.
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Old Dec 19, 2011 | 04:23 PM
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Great find on the reset article, Habious!

Apparently there is a "no scan-tool needed dance" for resetting the AFS controller -- you know, one of those "press the switch eight times then open/close door three times" like we have to do when programming keys.

If anyone knows a dance for resetting the headlight leveling sensor ECU, that would solve the problem in a jiffy.
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Old Dec 20, 2011 | 05:17 AM
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Originally Posted by VVTiBob
I've searched through my printed and pdf versions of the manuals and cannot find a pinout connector chart for the DL3 connector... Looks like TIS may be your solution. But here's the more specific HL system info on our cars.
Regrets,
Bob
I think the XDA/CG info is either in oem repair manual volume 1 (more likely) or oem wiring diagrams manual, but I don't have the printed manual set with me right now.
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