Brake Booster and Stroke Sensor Issue - HELP (1 Viewer)

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Hi All,

My 2003 Sequoia's brake booster wasn't boosting so I had a shop replace it with an aftermarket reman. It took me 2 months to find the reman booster - there were none anywhere when I started looking. It went into the shop with no codes being thrown. After they installed the reman booster it worked perfectly, but the Sequoia started throwing:

c1223 - fault in abs control system
c1247 - fault in stroke sensor

On a 2003 Sequoia the stroke sensor is inside the booster. It's one of the two connectors you plug in.

The mechanic insisted that the reman booster was bad and says that since it's not an original Toyota part they can't do anything but charge me more money to diagnose why the codes are thrown. Either way they felt the reman was bad. So, I brought the Sequoia home, took the reman out and returned it. I found another reman booster. Installed it myself. Same codes. On a whim I plugged the OLD booster back in... same codes.

So, right now I feel like the mechanic possibly upset something within the wiring as he was poking around to replace the booster. It's old, I get it. I just don't think it's the booster.

So my question is - in particular with the stroke sensor - other than making sure the brake pedal plunger is the same length as on the original booster - is there a calibration or other synch that I need to perform to make these codes go away? Both reman boosters worked fine and made the pedal feel like new. They simply throw these codes.
 

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