2003 lexus rx 300 abs light blinking

Could be anything from a faulty wheel sensor to something simple like dirt build up on one or more of the tone rings on the cv shafts. Would have the obd scanned before buying any parts. Good Luck!

Many times these are cheap fixes if you are somewhat mechanical. Like Brian said, cleaning all the tone rings and cleaning off the magnetic sensor head are simple but can cause miscommunication with ABS module. If it is a tone ring, you can take these off and put a new one on but they do require some heat and patience getting new one on. But a cheap and reliable fix. The wheel speed sensors are not cheap if you go with OEM. I have tested these on vehicles at junk yards and pulled them for $20 - $30 and they have lasted 10 years. Start with a scan of the ABS system to narrow down the wheel in question.