ABS and "!" lights are ON again! - Toyota Yaris Forums

nemrod44 · 11-21-2009, 06:34 PM

========= I solved my abs / brake light problem =================

I had this problem and the dealer proposed to change the hub assembly and wire harness. There was no way i would pay 700$ for ABS to work properly.
Since everyone here was saying it was a corrosion problem with the connector in the hub assembly, i gave it a try and repaired it myself.

I opened the connectors, used WD-40 to wash the terminals inside the connectors, cleaned the connector of the WD-40 with some airpressure and then filled the connectors with dielectric grease (even tho regular grease protects from corrosion, the grease itself conducts electricity and could cause some weird shorts between the two terminals, dielectric grease prevents this).

I did the repair january from last year and its been working fine since then. I think i will reopen the connectors and redo the same job before it gets cold just to be sure everything will continue to be fine.

If your harness / sensor connector is in really bad shape, this repair might not work but for the price its worth the try. (took me between an hour or two and cost only the 6$ dielectric grease tube and some wd-40). Also, i used wd-40 but I guess connector cleaner would make a better job.

11-21-2009, 06:34 PM	#11
nemrod44 I've made a post! Drives: 3 dr hatchback RS Join Date: Jul 2009 Location: Montreal, QC Posts: 1	I solved my abs / brake light problem ========= I solved my abs / brake light problem ================= I had this problem and the dealer proposed to change the hub assembly and wire harness. There was no way i would pay 700$ for ABS to work properly. Since everyone here was saying it was a corrosion problem with the connector in the hub assembly, i gave it a try and repaired it myself. I opened the connectors, used WD-40 to wash the terminals inside the connectors, cleaned the connector of the WD-40 with some airpressure and then filled the connectors with dielectric grease (even tho regular grease protects from corrosion, the grease itself conducts electricity and could cause some weird shorts between the two terminals, dielectric grease prevents this). I did the repair january from last year and its been working fine since then. I think i will reopen the connectors and redo the same job before it gets cold just to be sure everything will continue to be fine. If your harness / sensor connector is in really bad shape, this repair might not work but for the price its worth the try. (took me between an hour or two and cost only the 6$ dielectric grease tube and some wd-40). Also, i used wd-40 but I guess connector cleaner would make a better job.