2014 Frontier SV ABS activating during normal braking

[tmjstar]

Good morning Nissan Peeps, I have a very strange issue with my 2014 Frontier. During normal braking the abs system activates causing the brake pedal to pulsate for 2 to 3 seconds. The local dealer has made 6 attempts to fix this unsuccessfully. First I made them put 4 of the same brand and size tires on it. next they said the front wheel bearing was a little loose and replaced both front hub and sensor assemblies. On the next visit they said they found corrosion on the right rear speed sensor assembly and replaced it. No I haven't paid any money, it is a warranty issue. Good thing I have the patience of a saint. Also I have been a tech for 40 years and let them throw parts at it this way I don't have to down the road.... Problem STILL unresolved!! I now am the customer with the truck from hell and they cringe whenever I walk in... I speak only to the Service Manager at this point. I explain to him my background in the repair field and suggest that if I were to look at this truck I would disregard everything anyone has done and start fresh as though I was the very first tech to look at this nightmare, do a complete and full brake inspection checking caliper slides, pad movement in brackets and rotor condition . I set up another visit, drop the vehicle off (number 5 now). They put me in a rental at no charge as usual and keep the truck for 8 days... yes 8 days. they say it is all set. I drive 1/4 mile to get on highway apply brakes and BOOM ABS activates under normal slowing down!!!!! I go home and my wife says "just fix it yourself, this is ridiculous!" So I do the complete brake inspection and find a stripped lug nut on the LR wheel, the rear rotors are severely rotted on the inside and pads are seized in the brackets. WTF!!! Visit #6 they special order OEM spec rear brakes (3 days) Install them, say they drove it 80 miles without issue. I pick up truck and upon slowing down to get on highway.... Boom abs activates.....
If anyone out there has any ideas I would love to hear them before I dive in and properly diagnose this myself.
Thank you for reading and appreciate your input

[centralcoaster33]

Welcome to NICO Club!

Well, you told them your history and now they're testing you! I mean that in good humor.

I think you should be along for their test drive. I think you should not accept the vehicle back until they ride with you. That you get ABS activated on the trip home defies their ability to drive 80 miles without it... that is, unless they just drive around the highway and don't do any braking.

The actual issue is likely in the sensors, possibly the computer and it's wiring and possibly with the actuator itself going on the fritz. I'd use the FSM. This link is to a page with links to each chapter. You can look at FWD to get to the foreward chapter with table of contents. You can save each chapter to your device as a PDF.
http://www.nicoclub.com/FSM/Frontier/2014%20Frontier/

[tmjstar]

I have a Snap-on Solus Pro Scanner and have used the record feature and captured the incident, and it shows a problem with the RR sensor. They claim they have been unable to use their Nissan approved laptop and record the issue. BS! My thought is "Just because it's a new part doesn't mean it's a Good part" I have seen it too many times with almost 40 years of wrenching. Thank you for your input