My abs and tras off light on and off what is the reson?

Your question is not very clear to help you out.
If you need to change the front speed sensor or the rear sometimes you have to change the wheel bearing assembly.
You cannot change only the sensor.
Most common problems with ABS system is an intrusion of water inside the wires.
-Look ABS fault code for which wheel sensor is at fault and then unplug harness connector at the wheel.
-Mix water and salt in a spray bottle around 1 liter of water/1 tablespoon of salt.
Take ohmmeter, plug to ground and with the red lead, probe each terminal at ABS connector
Spray the water/salt on the harness. If you read something = wiring is the defect.

Hope it helps

res·o·nate
?rezn??t/
verb
3rd person present: resonates

1. 1. produce or be filled with a deep, full, reverberating sound.
   "the sound of the siren resonated across the harbor"
   
   • evoke or suggest images, memories, and emotions."the words resonate with so many different meanings"
   • US(of an idea or action) meet with someone's agreement.
     "the judge's ruling resonated among many of the women"
2. 2. technical
   produce electrical or mechanical resonance.
   "the crystal resonates at 16 MHz"

If there are no sensors connected to, or in the exhaust immediately before or after the resonator on your particular truck, then there should be no reason stopping you removing it and replacing it with a length of pipe.
Except, of course, Nissan spent millions of dollars on researching ways to make your Nissan nice and quiet, stopping exhaust vibrations hitting to bottom of the vehicle and causing drones at certain revs that wil drive the occupants to distraction.
So don't throw the resonator away..you will need it agin.......

what lamps cars have many and the most lamps of all are the dash.
and where is this resinator, (exhaust part) or intake air tube?
resonator?
or is this resonator on the dash to, do tell what it does, for a hint.

Failed Transmission

Time for a Rebuild

ABS LIGHT AND MODULE TROUBLESHOOTING:

Anti lock brake system light comes up when there is issue with car brake systems. It can be low brake fluid or faulty ABS fuse or its issue with brake system or assembly. Your vehicles brake system needs inspection.

To troubleshoot these issues, I suggest you to refer the help links provided below. There are direct links with accurate solution, for these specific issues.

Click the link below and follow the procedure: ------

All types of ABS LIGHT / brake problems and repairs

http://howtobyme.blogspot.com/2011/11/abs-and-service-light-comes-on.html

-------------------

ABS light stays on but brakes work fine?

http://howtobyme.blogspot.com/2011/11/abs-light-stays-on-but-brakes-work-fine.html

----------------

VCS and ABS lights go on and off intermittently on Lexus?

http://howtobyme.blogspot.com/2011/11/vcs-and-abs-lights-go-on-and-off.html

-------------

The ABS and Traction Control Lights stays ON dash of car?

http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html

-------------

ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

-----------------------

Battery Light and ABS Light on Dash

http://whoisbyme.blogspot.in/2012/07/battery-light-and-abs-light-on-dash.html

-------------

Sometimes ABS light comes on while Driving?

http://howtobyme.blogspot.com/2011/12/sometimes-abs-light-comes-on-while.html

-----------

How Anti-Lock Brakes Work?

http://technoanswers.blogspot.com/2011/11/how-anti-lock-brakes-work.html

-------------

Brake System Troubleshooting?

http://technoanswers.blogspot.com/2011/11/brake-system-troubleshooting.html

-------------

Anti-lock brake light stays on all the time?

http://technoanswers.blogspot.com/2012/01/anti-lock-brake-light-stays-on-all-time.html

-------------------

ABS light comes on and Car makes Grinding noise?

http://repairhelpcenter.blogspot.com/2012/01/abs-light-comes-on-and-car-makes.html

---------------

ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html
------------

2008 Toyota Highlander: ABS warning light Blinking and OBD Error codes Coming?

http://technoanswers.blogspot.in/2012/05/2008-toyota-highlander-abs-warning.html

--------------

2003 Lexus ES: VSC, TRAC OFF, ABS lights ON?

http://technoanswers.blogspot.in/2012/04/2003-lexus-es-vsc-trac-off-abs-lights.html

----------------

2008 Toyota Highlander Hybrid: Warning Lights Abs, Vsc & Brake Are On?

http://technoanswers.blogspot.in/2012/04/2008-toyota-highlander-hybrid-warning.html

-------------

ABS & Brake warning lights remains steady on dash?

http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html

------------

Can I drive the car without ABS fuse connected?

http://schematicsdiagram.blogspot.in/2012/02/can-i-drive-car-without-abs-fuse.html

-----------

Where is ABS/TCS module located on 2005 Cadillac Deville

http://schematicsdiagram.blogspot.com/2011/12/where-is-abstcs-module-located-on-2005.html

------------------

ABS motor keeps running?

http://schematicsdiagram.blogspot.com/2012/01/abs-motor-keeps-running.html

------------

When the car stops, abs pump turns ON?

http://howtobyme.blogspot.com/2011/12/when-car-stopsabs-pump-turns-on.html

-----------

Replacing ABS unit on Buick Century?

http://technoanswers.blogspot.in/2012/02/replacing-abs-unit-on-buick-century.html

----------------

2008 Toyota Tacoma: ABS causes Brake pedal fade?

http://technoanswers.blogspot.in/2012/04/2008-toyota-tacoma-abs-causes-brake.html

--------------

Toyota Camry: Premature ABS Actuation?

http://technoanswers.blogspot.in/2012/04/toyota-camry-premature-abs-actuation.html

-----------

How to replace ABS Modulator Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-modulator-control.html

----------------

How to replace ABS Pump Assembly on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-pump-assembly-on.html

-----------

How to remove ABS Accumulator on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-accumulator-on-acura.html

---------

How to remove ABS Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-control-unit-on-acura.html

------------

These details will help.

Thanks.

If the unit is bouncing quite eratically, this is an indication of a gear/motor issue in the speedometer itself. There are places that repair these but are few and far between. Check out Silverstar Porsche/Mercedes auto recycling in CA. Great service and resonable on prices and will ship. Replace the speedometer.

JUL 19, 1999 | Recall ID# 39106 Hide Details

Recall Reason SERVICE BRAKES, HYDRAULIC:ANTILOCK Recall Date JUL 19, 1999 Model Affected S10 Potential Units Affected 1125749
Recall SummaryVEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS (ANTILOCK BRAKING SYSTEM) MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-WHEEL DRIVE CAN MALFUNCTION CAUSING INCREASED STOPPING DISTANCES DURING ABS STOPS WHILE IN THE TWO-WHEEL DRIVE MODE.

ConsequenceIF THIS OCCURRED AT A TIME WHEN MINIMUM STOPPING DISTANCE WAS REQUIRED, A VEHICLE CRASH COULD OCCUR WITHOUT PRIOR WARNING.

RemedyDEALERS WILL REPLACE OR REPAIR THE 4-WHEEL/2-WHEEL DRIVE SWITCH.

the reson u get no pressure is that you need the special tool to bleed the ABS control hydraulic valve, u will need to have the dealer do this, air is trapped in the ABS control and until you bleed it correctly with the tool you will have no brake pressure.

there is no reson for that switch to control your tail lights the only reson that your car would have that option is if your car was ex FBI car and if that is the case then it is illeagal to have this option on any car sold to a none fbi personel