ABS problem with 650 rwhp Supra

[jaebers]

Originally Posted by pwpanas

Both codes appear to be related to the abs control circuits. If you don't answering one obvious possibility: Is it at all possible that a harness connector has come unplugged, or is not plugged in securely?

Also, your TSRM should have a troubleshooting guide for these two DTC codes. They typically involve checking the voltages/resistances/continuities/etc of harness connections and sensors. Have you already gone these steps for both DTC 11 & DTC 13?

I have been using the TSRM exclusively to help troubleshoot these codes by checking the items you mentioned. I was checking things again last night and I may have found the problem (possible broken wire that occasionally loses continuity when racing, but not during testing---ugh). Since this issue is intermittent, it has been difficult to track.

Thanx for your input.