Hello, 2011 maxima sv. My tcs light keeps coming on, more frequently lately, here are the symptoms, can anyone help me track down a source for the problem?
only cel light is a p0101, MAF. Cleaned and reinstalled with no changes. Bought a replacement and installed, no changes to the cel.

Tcs light comes on after driving and slowing to a stop. Engine revs down a few 1000 rpm then kicks on the tcs light. If I turn off and try to start the car right away, it stalls. If I let the car sit off for 10 to 15 seconds, it starts and idles normally and the TCS light goes off. Usually this will solve the problem for the rest of the trip as I drive, no lights or idle issues. Sometimes it will take 2 or 3 restarts to clear the problem. Lately it has taken more restarts to clear the issue.

additionally, if the car is sitting in park and idling, it will drop rpms and trigger the light. Same process clears the warning light. Seems to run better when it reaches operating temperature.

When the light triggers on, the car will jerk and surge at 2400 rpm. Will not accelerate normally. Under 2400 rpm, it seems to run fine.

Where would you recommend I start looking and what areas should I begin replacing first. This is mindblowingly frustrating to research as there seems to be dozens of possible causes from speed sensors to negative grounds, tranny issues to cam and crank sensors. Any help or guidance would be appreciated.

 

I am leaning toward a vacum leak (bad hose, connection, booster) because of both the maf and tcs issues, rough idle, etc.
Not saying it couldnt be one of the sensors, but would check the more rudimentary first.

 

I checked all vacuum lines and everything appears normal. I checked the throttle body for cleanliness and it's in good shape. I disconnected and cleaned battery cables and performed an idle relearn. This seems to have temporarily solved the problem, but I am expecting the issue to return as there must be an underlying issue.

 

I agree with your assessment for a systemic issue un-diagnosed, and have seen strange things in my day. But with the only code thrown being a MAF and you cleaned it, it almost has to be a leak somewhere (maybe in the power brake reservoir thus the TCS) I can't see a MAF and a TCS occurring at the same time otherwise. But there a lot of smart guys on this forum that may have seen this already.

 

The TCS is part of the braking system so make sure the brake fluid reservoir is filled to the max line.

 

brake fluid is full.

 

Did you find a solution or is it still occurring?

 

Still has not returned. I am leaning towards the cleaning of the battery posts and connections as the most likely reason it has stopped. I did have a significant amount of corrosion on the terminals. Strange, but can not identify another reason for it going away, at least temporarily.