So I've replaced an actuator with a brand new Toyota part straight out of the box. Install went smooth no problem finally got text stream to do the whole bleed routine did it twice then I did it with tis for each line just to be sure No air anywhere coming out of any of these zerk fittings at any wheel. Now I have a 1364 code It says it has a cookie but when I click on it it just takes me to 1364 WC pressure sensor. The car also runs rough with all these lights on just the Amber ABS VSC skid control in the exclamation point with the quotations on the side of it. If I clear this code while and ready what have you The brake pedal clears up immediately the engine starts running very smooth and I can drive test the brakes everything is working great. As soon as I pull in the driveway and turn the car off even if I wait 5 minutes come out and restart to go again all the lights are on and the amber for the brakes I got this high pitched noise in the car the VSC buzzer it's called I think and that's that The pedal is still hard but it's not proper I clear the light go for a drive everything's working perfectly I don't understand what gives 1364 and it looks like no cookie so this list of stuff for the workup that I have I don't know how to get to code or whatever it's asking for the three digit thing?
The alarm is for wheel cylinder pressure sensor. If you're unable to determine which, you should be able to look at each sensors 'LIVE' value (0-5volts) in the brake section of techstream. Looks like it should be 0.3-0.9 when pedal is released and 0-5v when being pressed. I guess one is wonky or something.
And the wheel cylinder pressure sensor is built in to the actuator that I just replaced.? If I'm reading this right and the workup for the 1364 it's the wheel cylinder that it's monitoring but it's monitoring it in the actuator not back at the wheel and the wheel cylinders are in the back of the car and calipers are in the front so if this was happening in the front the code would be for caliper pressure something another?. When I bleed the brakes both of the rears when I call them up and TIS to bleed each rear wheel shoot a nice stream of fluid out no air no funny business looks like with the bleed screw open they both shoot the same distance and all that I can certainly find no air in the system. And with the other actuator installed there was none of this matter of fact I didn't even have any codes except for the low accumulator pressure and the constant pumping of the ABS pump which mandated the change of the actuator to a brand new Toyota unit just took it out of the box. And this code popped up almost immediately after getting everything installed plugged up and starting the bleed procedure. I also find it strange that I cannot get the three digit code that goes with the 1364 no matter what I do clicking on the cookie and all that.
So it's reading wonky wheel pressure cylinders in the rear of the car? So then if a wheel cylinder won't hold pressure usually it must be leaking which if you look at the bottom of the drum or slide it off you should see wet correct? I haven't done this but I also have no reason to believe there's anything leaking at the rear or why my rear wheel cylinder of whichever side would not hold pressure when I step on the pedal I certainly can't turn the wheels in the rear not one bit.
Heck wheel cylinders are cheap like $14 a pop I'll put a new one on each side without question It just seems awfully weird that that would fix the problem but I'm game.
You should be able to observe the values in techstream while pressing and releasing the brake to see which one isn't normal. May even be a broken wire at the main connector or similar.
Yeah I was hoping for something simple like a broken wire but this would be either at the skid control ECU which hasn't been touched or at the break actuator which I definitely slid the collar back and unplugged I need to do undo the three bolts on the inverter to slide it forward a few tenths of an inch so I can pull the collar and pull that plug back off I'm sure there's no broken wires there but maybe the plug is dirty or got some moisture in it while it was unplugged. So I guess this code really doesn't have anything to do with the wheel cylinders themselves just the pressure sensing that's going on in the break actuator for the given wheel cylinder circuit left or right?. So other than the wheel cylinder leaking at the wheel which one could see The only other way I'm losing pressure is through the sensor and or the valve. Inside the actuator.?