Replaced ABS Actuator w/ non-matching part number, how to reprogram??

Did you ever get this resolved and working?

 

Does anyone know how often the pump comes one? Everytime you press the brakes? 2nd, 3rd, etc?
Has anyone used techstream to test it, will it let you know it's starting to fail?

 

The 'normal' number varies quite a bit, somewhere in between "every few uses" and "every several uses". It depends on how much fluid gets consumed from the accumulator on each "use", which depends on how hard a "use" it was, and also on things like the amount of rotor runout. (A rotor with more runout pushes the caliper piston back farther when the brakes are released, meaning it takes more fluid to apply the brakes every time they are used.)

In cars with rear drums (like Gen 1 and Gen 2), it will get a little more frequent as the linings wear, closer and closer to the next click of the auto adjuster, and then less frequent again after the adjuster clicks.

In general, as long as you're kind of not sure how often your pump is running, that's pretty much as it should be.

If you catch yourself thinking it's running on every use of the brakes, that's getting suspicious. If it's coming back on by itself between uses of the brakes, that's definitely suspicious.

Another poster has suggested just watching the accumulator pressure sensor value in the Techstream data list. If you get bored watching for the number to drop after a run of the pump, that's good. If you're sitting there watching the number drop before your eyes, not good.

For the OP: given your C1202 and your C1345, have you checked the reservoir level sensor and tried to trigger the offset learning?

 

When my pump was going out it would take longer than ten seconds to pump up in the morning. I would hear it every time the brake was used although it was only easily audible at stop lights. It did not throw codes in those initial situations but the pump cycling at every stop was not normal. One source said it has to run for five minutes to throw the pump runtime code. After the pump and master cylinder were replaced it went to short morning cycles and almost never at lights. Obviously it runs occasionally but it must be while I am moving with increased ambient noise.

When it was failing a techstream brake bleed restored the pump timing for about a day.

 

did you figure out? do you really need re=programming or just solenoid valve offset learning?

 

Depends on how different the actuator is from the old one in the car. They shipped with some different firmware versions ("calibration IDs", in car lingo) depending on the model/trim of the car. You can see the ID in a Techstream health check, and compare it to what's supposed to be in your car.

If it's not the right one, in theory you can flash the right one. I don't think I would try it with any dongle cheaper than the DrewTech one that Toyota endorses, though. Going cheap wouldn't be worth the chance of bricking it.