Traction and ABS light

2012 tundra 4wd TRD 5.7
traction and abs light on. No cruize control.
I thought it was due to air bags. Used them this weekend at 75 pounds. Right bag leaks so leve was off by yesterday. Let the air out and lights went out. Back on this morning. Tried 4hi trick someone mentioned. ABS off but traction light still on.
Recently replaced right rear calipers.

 

Anyone?

 

Check for codes? Check the wiring to the ABS sensors.

 

That combination is likely a wheel sensor - if you replaced the brakes...bet the sensor is bac or broken, etc...

 

I'll check em.
Did the brakes a few months ago, just now having issues.
Could be loose.
Seemes to come on at same sharp, downhill, off camber, bad asphalt turn each morning. Turns off on drive home.

 

Check your wheel bearings for looseness / play.

 

Ugh, don't even wanna think about that. But will now.

 

Understandable. But if a bearing has play, the wheel speed sensor will not produce a good signal, especially in corners.

 

Update. Seems to happen only in the morning? Temperature maybe? Seems unlikely. First clue of problem is cruise control wont work. I noticed it before the before mentioned turn. I have an ODDii scanner but it is 17 years old. Not sure it will read codes.
Everything works driving home in the afternoon

 

Could low voltage cause this issue. I noticed that when I turned on my lights tonight my cruise turned off. Now traction and abs on. I have week battery

 

I’ve seen many xmas tree dash lights ending up being bad battery on this forum. Batteries do only hold half their capacity at freezing temps (mornings)...

 

Ok, need new battery. Will change tomorrow, also check codes. Been driving on week battery for awhile. Radio drains it in ten minutes.

 

I wouldn’t be one bit surprised if a new battery cured it all.

 

Just got a new battery the other day, the old one died at the gas pump and the folks behind me weren't real happy but the guy said sh*t happens. The station manager jumped me and I drove off to get a new one. Funny part is with the new battery with a full tank I had 450 miles to the tank and was getting 25 MPG, darn that didn't last long.

 

Update.
New Battery, no codes on Actron OBD2 CP9145 tester. Alternator indicator hovering at 14v. I will test with digital meter later. Drove it about 20 miles. Cruise control worked until I turned on lights. As soon as lights went on cruise shut off, however, no traction control or ABS issues unless I didn't leave lights on long enough to register problem.
Any ideas?

 

How clean and bright are those battery terminal clamps on the inside, and at the stud connection on the positive? Ground cable tight at the inner fender?

 

Terminals and battery connections good. I haven't checked the rest. I will though.
You'd think a union certified electrician would check that first.

 

Thinking about this more, check your tail lights and brake lights. Make sure the tail lights work and then the brake lights come on brighter. A bad ground connection to the dual filament bulbs or within the bulb itself will backfeed power from the tail light circuit to the brake light circuit.

It will cause cruise issues, and ABS /trac issues, as the brake signal is an input to both modules.

LED bulb conversions can be the cause of this as well.

 

Will do. I do have a brake light out. I'll change it. The See what happens

 

Solved!! Brake light. Crazy. Thanks to everyone who posted.

 

I'm glad you got it figured out. that's interesting how a brake light affected the electrical like that.

 

Thanks to landphil. Now I feel guilty dumping all my trash on him.
Yeah, that is weird. But from an electronic view point, and electrical it makes sense.
In the electrical industry we are just discovering that all these DC led drivers are effecting the AC voltages.

 

I have a 03tundra v8, abs light came on yesteday. I noticed passanger belt is broken.

 

First gen Tundra pages are here: https://www.tundras.com/forums/1st-gen-tundras-2000-2006.2/

I would make a new post. Rehashing something that has been dead for years will lead to strange occurrences.