Hey guys, my gs460 threw up ABS warning lights today along with the check ECB and check VSC. The brakes work fine but they do buzz whenever I tap the brakes or use them. It has been doing this for the past 2 weeks, many owners have told me its normal and as long as the actuator isn't buzzing constantly its nothing to worry about. Fast forward today the lights came up on the dash and I scanned for codes. I got the C1246 master cylinder pressure sensor code. Any ideas how to go about this? I think it might not be the actuator itself since that would show the accumulator leak code instead. Note: ive cleared the codes and driven 10-15 kms and the codes haven't return. Please do let me know with your valuable input! Thanks in advance!

 

Here is the diagnostic information for that trouble code: https://charm.li/Lexus/2008/GS%20460...rake%20System/. Your scanner should be able to read the PID's of this procedure.