Power steering loss/ABS/brake/traction control lights on all at once

[Markornet]

2017 Yukon SLT XL Drove to ocean with my family and after couple of days came back. It was heavy rain not sure if it matters. I recently replaced both tail lights and put new bearing on the driver side. And today this. Any thoughts? I checked ground under the dashboard and looks good to me.

I got OBD2 and run diagnostic. No error codes.

 

[Markornet]

Anyone can help with this reading…

 

[duke90]

Just had that exact issue…I replaced my front abs sensors with ones from rock auto..and the truck wouldn’t accept them. Got all those error warnings that you mentioned and it was throwing codes 0035 and 0040 along with a bunch of others. Swapped the old sensors back in (nothing was wrong with them I just figured I’d put new ones since I was changing out brake lines etc). Anyways, old sensors went back in, disconnect battery and then reconnected. All errors codes and warnings gone. So maybe something to do with your abs sensors? I have a 2017 Yukon xl Denali btw

 

[OR VietVet]

Just had that exact issue…I replaced my front abs sensors with ones from rock auto..and the truck wouldn’t accept them. Got all those error warnings that you mentioned and it was throwing codes 0035 and 0040 along with a bunch of others. Swapped the old sensors back in (nothing was wrong with them I just figured I’d put new ones since I was changing out brake lines etc). Anyways, old sensors went back in, disconnect battery and then reconnected. All errors codes and warnings gone. So maybe something to do with your abs sensors? I have a 2017 Yukon xl Denali btw

Let me guess, Dorman sensors.

 

[Markornet]

Just had that exact issue…I replaced my front abs sensors with ones from rock auto..and the truck wouldn’t accept them. Got all those error warnings that you mentioned and it was throwing codes 0035 and 0040 along with a bunch of others. Swapped the old sensors back in (nothing was wrong with them I just figured I’d put new ones since I was changing out brake lines etc). Anyways, old sensors went back in, disconnect battery and then reconnected. All errors codes and warnings gone. So maybe something to do with your abs sensors? I have a 2017 Yukon xl Denali btw

Hey! Thanks for the reply. I did change the ABS sensor and unplugged the battery but didn’t work for me. Did you have power steering issues as well?

 

[duke90]

When I had the new sensors in I did get the reduced power steering warning and it was more difficult to turn the wheels. With old sensors back it was back to normal. I did read in a thread on a different forum that replacing the wheel bearing can turn up all those error codes as well

 

[Markornet]

Anyone else with similar issues?

 

[Mando6point2]

I would check the voltages at the power distribution box and make sure nothing is faulty there. The codes you showed are all communication issues on the CAN network and ive seen one faulty module bring down a couple more just because the way they are tied together. I think a good scanner with access to live data may be needed to further pinpoint which module of the 2 is the culprit or if there is just a network issue. Code #9 indicates there is a voltage issue. Do you have the P0XXX numbers for these codes?

 

[Doubeleive]

unplug the abs sensor and disconnect the tail lights and see if you just end up with a abs only
says you have a tail light short to ground. are these led tail lights or something?

 

[Carlos Ruiz]

I had a similar issue. Ended up replacing the ground cable harness and a new battery.