This is first problem so far with 2015 Sonata Limited 2.4 with 37,000 miles. Purchased new in June 2015.
All three lights illuminated this month. Intermittent for a couple of days, continuous now. Car continues to drive fine, but Blind Side Detection not operating and I am sure the ABS and Traction Control are not functioning either.
At just over 5+ years of service, I am believing this is out of factory warranty, but have not contacted the dealer yet. I have done a bunch of forum searching and not found this problem referenced for my model year Sonata yet. Have seen a bunch of posts about Santa Fe ABS lights and hub replacement. Most posts pointed to "get the codes and diagnose".
I got an AUTEL AL619 and ran an ABS scan. Got codes C1206 01 and C1207 02, Wheel Speed Sensor Rear LH Open/Short. From the Santa Fe forum posts this is pretty much inline with what I was expecting and pleased that the scan tool seemed to point to a particular wheel speed sensor.
I raised the car, removed the wheel and began looking around. Did not see any obvious broken wires or evidence of external damage. Only looked in the wheel well as I did not have the time to follow the wire inside the vehicle.
My next step is to clean around the ABS connector at the hub, disconnect it, check that it is a clean, dry, and good connection, and test for resistance, then voltage as I rotate the wheel. What I have seen is the wheel speed sensor in the hub should have resistance and should produce an AC voltage as the wheel is being rotated. If it shows resistance and produces voltage, I would like to reconnect it, go further along the wire to the next connector and retest it there. Perhaps a continuity or ground check would be in order if I can access both end connectors.
If it does not show resistance or produce voltage, that seems to indicate the wheel speed sensor has failed and calls for hub renewal. That looks pretty straightforward. I am an experienced ship repair mechanic and automobile DIYer. From the hub change resources I have seen so far I have the tools to do the work.
I have a few questions for forum members:
1. Have you seen this before on the 2015+ Sonata? Does it sound similar to the ABS and hub renewal discussions in the Santa Fe forums?
2. Does this sound like a pretty effective diagnostic repair plan?
3. Where does the wheel speed sensor wire go after it leaves the wheel well? Is the next connector fairly accessible behind the trunk lining or below the rear seat? From illustrations I have seen of ABS Wheel Speed Sensor Wiring Harness Part Number: 59910C1000 it looks like the connector is pretty close to the wheel well pass through grommet. Where is the next one beyond that? At some control module under the hood?
4. It looks like the hub renewal is the simplest repair method, is that true?
5. Does anyone know the part number for the hub? I have electric parking brakes on the car. Looks like it might be Hyundai Part No. 52730-C1100.
6. I have assumed this would not be covered by warranty, anyone know anything different about that?
7. I bought an extended mechanical repair contract, 10 year period, Platinum level, $0 deductible at the original dealership (100 mile RT to them) at the time of purchase. The contract is called "The Mechanic" administrator is at 175 West Jackson Blvd, Chicago.
Have not pursued that avenue to get it repaired yet but considering it. Need to call them for authorization before I take the car for repair to my local dealership. Am concerned there would be some pushback or other BS over diagnostic fees or some such thing an I would end up spending more time and money fussing with those tow parties than I would if I buy the wheel hub and change it myself. Any thoughts on that? Any experience with these contract administrator people?
I know it is a lot of questions, maybe some of them belong in another forum. I'd be glad to hear your thoughts on any of this and will move a question to another recommended forum if that is the right thing to do.
Thanks in advance,
DWL
All three lights illuminated this month. Intermittent for a couple of days, continuous now. Car continues to drive fine, but Blind Side Detection not operating and I am sure the ABS and Traction Control are not functioning either.
At just over 5+ years of service, I am believing this is out of factory warranty, but have not contacted the dealer yet. I have done a bunch of forum searching and not found this problem referenced for my model year Sonata yet. Have seen a bunch of posts about Santa Fe ABS lights and hub replacement. Most posts pointed to "get the codes and diagnose".
I got an AUTEL AL619 and ran an ABS scan. Got codes C1206 01 and C1207 02, Wheel Speed Sensor Rear LH Open/Short. From the Santa Fe forum posts this is pretty much inline with what I was expecting and pleased that the scan tool seemed to point to a particular wheel speed sensor.
I raised the car, removed the wheel and began looking around. Did not see any obvious broken wires or evidence of external damage. Only looked in the wheel well as I did not have the time to follow the wire inside the vehicle.
My next step is to clean around the ABS connector at the hub, disconnect it, check that it is a clean, dry, and good connection, and test for resistance, then voltage as I rotate the wheel. What I have seen is the wheel speed sensor in the hub should have resistance and should produce an AC voltage as the wheel is being rotated. If it shows resistance and produces voltage, I would like to reconnect it, go further along the wire to the next connector and retest it there. Perhaps a continuity or ground check would be in order if I can access both end connectors.
If it does not show resistance or produce voltage, that seems to indicate the wheel speed sensor has failed and calls for hub renewal. That looks pretty straightforward. I am an experienced ship repair mechanic and automobile DIYer. From the hub change resources I have seen so far I have the tools to do the work.
I have a few questions for forum members:
1. Have you seen this before on the 2015+ Sonata? Does it sound similar to the ABS and hub renewal discussions in the Santa Fe forums?
2. Does this sound like a pretty effective diagnostic repair plan?
3. Where does the wheel speed sensor wire go after it leaves the wheel well? Is the next connector fairly accessible behind the trunk lining or below the rear seat? From illustrations I have seen of ABS Wheel Speed Sensor Wiring Harness Part Number: 59910C1000 it looks like the connector is pretty close to the wheel well pass through grommet. Where is the next one beyond that? At some control module under the hood?
4. It looks like the hub renewal is the simplest repair method, is that true?
5. Does anyone know the part number for the hub? I have electric parking brakes on the car. Looks like it might be Hyundai Part No. 52730-C1100.
6. I have assumed this would not be covered by warranty, anyone know anything different about that?
7. I bought an extended mechanical repair contract, 10 year period, Platinum level, $0 deductible at the original dealership (100 mile RT to them) at the time of purchase. The contract is called "The Mechanic" administrator is at 175 West Jackson Blvd, Chicago.
Have not pursued that avenue to get it repaired yet but considering it. Need to call them for authorization before I take the car for repair to my local dealership. Am concerned there would be some pushback or other BS over diagnostic fees or some such thing an I would end up spending more time and money fussing with those tow parties than I would if I buy the wheel hub and change it myself. Any thoughts on that? Any experience with these contract administrator people?
I know it is a lot of questions, maybe some of them belong in another forum. I'd be glad to hear your thoughts on any of this and will move a question to another recommended forum if that is the right thing to do.
Thanks in advance,
DWL