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01 VDC, 05 R Sedan, 06 BAJA EJ257
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Changing the steering gear on this car doesn't require any contact with the brake's hydraulic system, but if it was good when you took it in and bad when you picked it up, its either an error on the service tech's part or a really strange coincidence.

The car would have had a realignment after the rack replacement, so a test drive should have been the final chore and any abnormalities should have been noticed.

How many times did you brake before it went to the floor?

The error "55" is most likely "SS" and is related to a speed sensor at a wheel, so if they unhooked one and left it unhooked, or its not fully connected, it could cause and issue. In which case, the ABS module needs to be read for error codes to verify a fault in a sensor and if its one of the front wheels, there is a good chance it was due to an error by the tech.
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,686 Posts
When the ABS activates to prevent a wheel lock up, it opens a dump valve for the fluid to go back to the reservoir. If the speed sensor in question is sending false data due to a loose connection, the ABS will activate to prevent the lock up and in doing, the pedal can feel "mushy". Going to the floor could be the valve stayed open based on the data received.

It needs to be scanned for error codes and checked thoroughly. Find out what the tech removed/disconnected in doing the repair and go from there.

Have you tried the brake pedal after you parked at home? What is it like now?
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,686 Posts
Okay, that would have been an indication of a problem. Get the ABS module scanned for codes and post them.
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,686 Posts
It is designed properly. If you look back at the posts, issues have happened prior giving fair warning and they were ignored. Given the nature of the failure and that when the key is turned off then on again the issue is gone, its electrical or electronic in nature.

Stop trying to blame fault on a manufacturer when the fault lies with ownership. If you ignore a stop sign and run through, getting hit in the process, you can't blame the sign or the maker. It's your fault. Same here. Something was happening prior to the visit for the steering and it was being ignored.
 

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Premium Member
01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,686 Posts
My pedal kept going to the floor once my abs light went on...it was scary but I was a mile from my house, but before my car was serviced my brakes were fine
And then again here:

I haven't tried it yet....I've had my abs light come on before and ive shut the car off and turned it back on and the light has gone off and I didn't have any problems
Okay, ABS system learning time. Your arguments are fruitless and without merit.

This is not air brakes. The ABS system works in conjunction with the hydraulic system on any car. It relies on hydraulic pressure to operate. With 4 WABS, each wheel has a speed sensor that communicates the wheel's rotation to the ABS module. When the modules "sees" a wheel moving slower or at a stop in relation to the other wheels and the operator is applying the brakes, it will activate a control solenoid and dump valve to pulsate the pressure to the wheel losing traction to maintain a rolling state rather than lock up.

Sensors on the hydraulic system in more recent builds communicate hydraulic pressure, pedal pressure and reservoir fluid levels to effectively operate the complete system.

If the hydraulic system has a failure, then the ABS cannot function. If the ABS module, motor, solenoids or speed sensors have a malfunction and it is seen by the ABS module, the ABS is deactivated and stopping relies solely on the driver's attention to loss of traction.

In the scenario we have here, there was an issue with the ABS prior to the visit for the steering repair, but it was ignored. We can assume, based on the OP's description, that it was an electronic issue since it reset with the key off, then on. We don't know what the issue was because codes and history codes have not been posted. We don't know how long its been since the initial incidents to now, so there is also the possibility that any history codes have cleared themselves. Also, if the dealer tech disconnected the battery while doing the repair, memory is wiped clean up to that point. Prior incident codes are mute.

When the ABS light comes on steady, there are two things that clear the light and reactivate the ABS. One is repair of the fault. The other is a key cycle where the light will go off after a bulb check and stay off until it sees a problem emerge.

When the system detects and issue with the hydraulic system, it deactivates because it needs the hydraulics to perform in order for the ABS module to perform.

As for the drop in pedal and then the ABS light coming on; duh, hydraulic issue with the vehicle caused the ABS to disengage and deactivate because it knew it would be worthless to operate without a proper operating hydraulic system.

There is apparently, now at this time, an issue with the hydraulic system. It could be in the master cylinder. Could be in the ABS motor assembly. Could be something at the wheels like a hose leaking, a bleeder valve is open, a joint at a connection is leaking, a caliper seal is leaking or a dump valve within the ABS unit or the relief valve in the master cylinder is stuck open allowing for loss of pressure. We don't know.

As for the vehicle not stopping. Apparently it did, just not up to full snuff. So somewhere on the car brakes did apply to slow and stop the car. FAILSAFE.

Stop with trying to lay blame on the manufacturer. Your just spinning your wheels.
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,686 Posts
They most likely pulled a fuse or relay to disable the ABS until it is repaired allowing for normal operation of the hydraulics.
 
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