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LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Has anyone dealt with these codes before?

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Old Oct 6, 2019 | 02:14 PM
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Default Has anyone dealt with these codes before?

So I pulled all these codes with my reader today since I've been having christmas lights all on the dash, but not all the time.

C1246-The Skid Control ECU sets the OBDII code when the Wheel Cylinder Pressure Sensor is not to factory specifications

c1249-stop light switch
c0278-open in ABS solenoid in relay circuit
c1223-ABS control system malfunction

ok, so I'm pretty sure the c1249 and c1223 will be taken care of with the brake light switch from what I've read, but the other few codes I'm not so sure about, any insight on these?

I'm really hoping fixing the brake switch is the be all end all to these issues.

Last edited by Neverdone; Oct 6, 2019 at 02:18 PM.
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Old Oct 6, 2019 | 02:36 PM
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Aftermarket switch is about $20 and a genuine Toyota switch costs about twice that. Kind of inconvenient to get to if you're planning to replace it yourself. Not impossible just uncomfortable...
I'd tend to agree, replacing the switch should remedy at least 2 if not all 3 codes.
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Old Oct 6, 2019 | 02:41 PM
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Originally Posted by bradland
Aftermarket switch is about $20 and a genuine Toyota switch costs about twice that. Kind of inconvenient to get to if you're planning to replace it yourself. Not impossible just uncomfortable...
I'd tend to agree, replacing the switch should remedy at least 2 if not all 3 codes.
Here's another question, where is the brake switch all under the brake pedal?
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Old Oct 6, 2019 | 03:02 PM
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See attached PDF
(The diagram is for a LS400. The 430 Svc Manual file exceeded the forum file size for attachments)
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File Type: pdf
br-6.pdf (20.9 KB, 150 views)
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Old Oct 7, 2019 | 08:21 AM
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Originally Posted by bradland
See attached PDF
(The diagram is for a LS400. The 430 Svc Manual file exceeded the forum file size for attachments)
Thanks man I'll try it and update the thread with my findings.
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