Several weeks ago, I ran over a large bolt that put a sizeable hole in the tread of my right front tire. Since the tire still had a lot of life left, I decided to have it plugged instead of replaced and I haven't had any leaks or other problems with it since. However, about a week or so after that incident, my tire pressure, abs, and asc lights went on and have been on every since. I made sure the pressure was equal in all tires, checked the fuses, and cleaned then replaced the front abs sensors to no avail. I was thinking of surrendering and finally taking the car in to the dealer when I noticed something odd. I was sitting in the passenger seat while cleaning the car and I turned the key to see what would happen. The the tire pressure light went off, but the asc and abs lights were still lit. When I sat on the drivers side, the tire pressure light lit up again. That made me think that may be a difference in the wheels on the right and left sides that cause the lights to appear and the only thing I can think of is the plug. Does anyone know if the weight of the plug in the right front tire is enough to throw off the wheel sensors and cause the light trifecta?

 

Pure, Im not sure about the ABS/ASC question but I would remove the plug ASAP. Plugs are not, and never were, an approved repair procedure by any major tire manufacturer, I worked for Goodyear in the early 90s and they despised them. Yes, I know they are convenient but they can often allow air to leak between the plies and literally peel the tire apart from the inside, causing catastrophic tire failure at highway speed. Think semi-truck tire coming apart, truckers call them "gators", you see them on the road all the time, caused by retread failures. The only approved tire repair is a patch placed from the inside of the tire. A flat patch is used for small holes and an umbrella patch can be used for larger punctures, being a patch that looks very much like a giant rubber thumbtack, the "tack" part or "body" is pushed through the hole and then trimmed off flush with the remaining tread, then the tire is rebalanced. They will outlast the life of the tire when correctly installed.

 

I, on the other hand, am a firm believer in appropriately plugging tires, but for nail and
similar sized holes in the tread not close to the edge, not large bolts! You may want to
have a tire shop replace the plug with an umbrella patch/plug as noted above if the hole
is on the large size. Maybe it's even too big for that method.
Check your tire pressures. If you are losing pressure in the plugged tire, it has something
to do with the light (it usually takes at least a 4-6 lb drop in one tire to trip the light,
more for runflats than non-runflats), but if the pressures are all correct, then maybe
an abs sensor, or the wheel angle sensor, or even the pressure monitor reset switch
may be the problem. I assume we're talking about a gen I R50 or R53 that checks for
flats via the abs sensors based on the forum this is posted in.

 

I had the same thing happen turns out my front hub was badd.. it had jst a hair of play in it. I got two brand new on ebay! 160.00 included shipping.

 

Check the ABS sensor. This is a common problem that might be a coincidence with your tire issue. These have been known to cause the problem you are having.

 

X2

I have a rover that does this trifecta which uses ABS sensors for its traction control system. Cleaning wheels and brake dust stops the light from coming back.

Good call.