多謝soccer88,Happy-DIY- 二位,進一步檢查更新

這個提到GAS CAP和真空管

http://www.fixya.com/cars/t10653923-toyota_highlander_showing_check_vsc

查了一下,沒看出問題.

短接TC確實沒碼,短接TS VSC LED FLASH 碼是 39

不知道哪裏可以查到 39 的含義.在這兒.

http://www.automotiveforums.com/t738062-vsc_trac_light_on.html

Code 39 (P1239) - Foreign matter is attached to the tip of the left rear wheel speed sensor.

Well, DU-UH! the entire VEHICLE is foreign matter! Of course it's attached...

That's Toyota's explanation of the error code. In other words, the LR wheel sensor signal is weak or intermittent, but the sensor resistance is within specifications. The sensor is not consistently generating a sharply cut-off square wave output, or at least the ABS controller isn't receiving it.

In addition to the possibility of "junk" having accumulated on the LR sensor face (since the sensor is magnetic), the tone ring (toothed wheel) may also have rust or contaminants (like rust, road debris, undercoating or paint, etcetera) on its surface, impairing the ability of the sensor to generate a good signal from the inductive force of the tone wheel faces.

Pull the LR wheel and start looking at the sensor, tone ring, and connections, and I think you may find eventual joy with your ABS system.