Toyota 4Runner Forum - Toyota 4Runner Enthusiasts Forum

Hello to the forum – first time here

I have a beautiful 4Runner 2003 - 6 cyl.

My ABS light came on.

No maintenance was performed on the vehicle.
(The ASC TRAC and ASC OFF lights are also on – in sympathy to the ABS I think)
The code reader shows C1223 (ABS) and C1246 (Pressure Sensor)
I suspect the pressure sensor is the culprit. Does anyone have experience with this problem / code?

Toyota wants $388 for the replacement sensor and there is no after market available
I can get the whole master cyl from a yard for $70 which includes a pressure switch.
Is there any way to test the switch without removing it?

Finally, How does one reset the codes once the replacement is complete?
Thanks for the help!