ABS, Brake and Traction control lights on upon startup.

2014 Prius - 74k Miles

Started the car today and the ABS, Brake and Traction control lights were on and stayed on (no blinking).

Prior to this I had started the car in EV to move the car up the driveway without having to start or use the engine. It rained pretty good for an hour before I did that. No clue why that would cause these lights to turn on on the next start up. I do have a growling wheel hub in the rear (my best guess) for the past week, which growls more and louder around 35 miles per hour or faster, the growling isn’t too loud where you can hear it louder than the engine or radio. I already have a wheel hub with ABS sensor ready to order on RockAuto parts store but I’m not too certain if it’s the front or rear but my best guess is it’s one of the rears, the right rear as I’ve read that one is most likely to be the first one to go bad on average with this generation model.

I only have a scan 2 reader, no tech stream reader, so I’m out of luck using technology to pin point the issue but I’m assuming something with the ABS speed sensor in the failing wheel hub is the cause, I don’t hear an actuator sound buzzing every so and so seconds as read from other posts, haven’t checked the fluid level yet either.

Theres a YouTube video showing how to reset the lights with a paper clip put into different slots in the OBD connection and then doing brake pumps, haven’t tried that yet either but want to see if that will clear them in case it was something with the rain that caused it seeing as I didn’t really drive the car before this start up (only moved it a couple feet in EV mode) and to see if the lights come back on after that reset.

What should I do first, I don’t know how to jack a car up or where to put the jack under the car exactly to not break anything that can’t support the weight of the car (help me out with that) so I can check which tire (wheel hub) has the most play or too much play between all four wheels because I don’t want to pay for a mechanic or dealership to pin point the issue if I can pin point it myself with your guys’ help.

Thank you in advanced.

 

Is my ScanGauge2 reader not enough when it comes to those HUD lights? Just curious what an AutoZone OBD reader can do that my SG2 reader can’t. I’ve read only techstream readers can show your ABS issue codes.

 

No clue but it’s not giving any signs or sounds that it’s the culprit, im leaning more towards wheel hub sensor seeing as all these HUD lights came on a week after my wheel hub started making abnormal growling sounds at higher speeds.

 

Awesome, now to find a paper clip, yes I figured the reset video was too amateurish to just be a reset procedure rather than a code retrieval process that should be done first before resetting.

 

Thank you good sir, could you refer to me what exactly this reader is, are the ones they let you use for free able to read ABS codes? I’m thinking of doing the flash code retrieval first.

 

Update: Neighborhood Mercedes mechanic who also has a super modified Prius gen 3 let me use his innova reader and the codes that came up were C1466 and C1467 which are the ABS speed sensors, one code was for the RH (right hand) and LH (left hand). With that being said along with the wheel hub growling, he said the speed sensor (the main one) is located behind the rear passenger side that connects to the left hand side too. He said my rear brakes need to be changed too but I can only afford to do the front ones which are in worse condition than the rear ones. He said he will instal new brakes and rotors for me and clean the sensors with something which I can’t recall exactly what he said he would use but would you say all arrows point to a new wheel hub assembly that comes with an ABS speed sensor is what needs to be replaced? Haven’t lifted the car to double check which side wheel hub has the most or any play, will do that soon, but the growling isn’t going away any time soon and he said the growling could be from the rear brakes because they are most likely the stock one from 11 years ago.

 

Update: Neighborhood Mercedes mechanic who also has a super modified Prius gen 3 let me use his innova reader and the codes that came up were C1466 and C1467 which are the ABS speed sensors, one code was for the RH (right hand) and LH (left hand). With that being said along with the wheel hub growling, he said the speed sensor (the main one) is located behind the rear passenger side that connects to the left hand side too. He said my rear brakes need to be changed too but I can only afford to do the front ones which are in worse condition than the rear ones. He said he will instal new brakes and rotors for me and clean the sensors with something which I can’t recall exactly what he said he would use but would you say all arrows point to a new wheel hub assembly that comes with an ABS speed sensor is what needs to be replaced? Haven’t lifted the car to double check which side wheel hub has the most or any play, will do that soon, but the growling isn’t going away any time soon and he said the growling could be from the rear brakes because they are most likely the stock one from 11 years ago.