[keevaam]

Hi all! I originally posted in the general forum but I thought this would be a good place to post my question also. If not/if it’s against the rules I’ll take it down though.

So firstly i have a 2013 BMW 328i F30(i believe).

Ive been a longtime lurker and just recently started to tackle a couple issues with the car. Initially i was getting a wheel speed sensor code from the OBD2 scanner. Checked the code and my brake pad wear sensor and the wheel speed sensor wires were ripped out from the stabilization bar snapping from a pothole.

replaced the bar, replaced both sensors and tried to rewire the sensors correctly. i continued to get a wheel speed not plausible code from the scanner. Did some searching and figured after 3 wheel speed sensors(1 from amazon, 2 from autozone/advanced auto) It must be the DSC module, as the car still had the abs lights, and CEL.

So i found a used pump/module on ebay, and put it in the car but i had to code it to the car. I didnt bother bleeding the brakes yet as i just need to get the faults cleared first.

I downloaded Esys 3.30.1 and v.4.38.30_PSdZData_Lite-BU, and when i read the ECU, I can see the DSC in red. I select the module and hit detect caf for swe and i get an error code:

Actual SVI has to contain at least one BTLD. [G093]

Anyone have any ideas? I can respond pretty fast, Im just looking to get this handled as the car has been parked since the only thing keeping it from being registered is the CEL for the emissions test.

Thanks in advance!


ETA: Additional information from the first post:

Originally Posted by LA1Z24

You should put the old abs module back in the car, and diagnose the issue properly instead of throwing parts and money at it.

There's plenty more besides a wheel speed sensor that can cause an issue. Wrong tire pressure, mismatched tire sized, broken tone wheels, bad wheel bearings etc. All these things can cause issues with ABS and DSC.

I'm more inclined to believe there's an internal break in a wheel speed sensor wire, than the module going bad. Shorting wheel speed sensor wires together should cause no damage to the module. There is almost zero current flow through an ABS sensor.

I'm open to it, as that would definitely be easier for me to do.

I dont know how to add images but i kept a written log of troubleshooting the wiring codes:

There was a

yellow/brown wire: YB
Yellow/green wire: YG
Brown wire: B
Red/Brown wire: RB

with 4 wires and 12 combinations the results i got(left is red wire and right is black to pigtail connector) were:

YB/YG: Code P152B (Wheel speed not plausible)
YB/RB: Code P152B
B/YG: Code P152B
B/RB: Code P152B


YB/B: Code P15B8(Open/short to ground/malfunction sensor)
YG/B: Code P15B8
YG/RB: Code P15B8
YG/YB: Code P15B8
B/YB: Code P15B8
RB/YB: Code P15B8
RB/YG: Code P15B8
RB/B: Code P15B8

I replaced the YG, B, and RB wires, traced them back to the connector to the DSC and with the multimeter i was able to see that the wires with power(didnt write them down) one got less than a volt with the power off and the other had about 10v with the power off. power on gave me 11 volts across both lines with power.

Tire Pressure:

The issue started after hitting a pothole so i had the car sitting for a couple months and then i replaced a damaged tire that was rubbing against the right strut and filled all tires to factory specs. replaced the lower control arm and brakes and rotors also on both sides front and back

mismatched tire sized

Should have factory sized tires on the car but they are used, should i try new tires?

broken tone wheels

Im not sure what that means, the wheels are all stock except for the front passenger side, and that one is stock but welded together from a repair, had not had any abs issues prior to the wheel speed sensor

bad wheel bearings

I agree its possible, but im not getting any of the same symptoms that i got from my chevy trax. no odd sounds, no weird vibrations, all of the braking issues were fixed with the rotor/brake/control arm repair/swap. Is there any definitive way to diagnose a wheel bearing going bad?

If it helps the only wheel speed sensor that is throwing a code is the front drivers side, which is the one that had the damaged wires.

I appreciate the response!