I have a 2005 dodge grand caravan ,and i have changed the tire sensor because the service man broke it but the light of the tire pressure still on how can i turn the light off? Thank you

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2009 Dodge Grand Caravan Coolant Temperature Sensor

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2009 Dodge Grand Caravan Coolant Temperature Sensor

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Diane, it is sensing low air pressure in one of the tires, or faulty sensor. check air pressure in tire and fill to specification.
Check the attached links for more info,
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Why Is My TPMS Light Flashing It Could Be Time for New Sensor Kal Tire

Dodge Chrysler Jeep Fiat TPMS Tire Pressure Monitoring System Relearn...

http://forum.chryslerminivan.net/showthread.php/15281-Tire-Inflate-Light-Comes-on

Tire Pressure Warning Light

the tire pressure sensors need to be reset or you have a bad sensor.

Hate to tell you but most likely your timing chain either broke or slipped, it could be cam or crank or both sensor

There is a specific procedure for resetting the tire pressure sensor system that must be followed. You Owners Manual should have it. Switching the tires around will cause this, as will a faulty pressure sensor or signal transmitter/receiver

Add 5psi to all 4 tires. For every 7 degrees of cooler temperature, tire pressure will drop 1 psi.

easy to see what they have done here its had a new tyre valve fitted and as its not a compulsory vehicle test item then i would just remove the bulb ,their are no end of questions on here about tyre pressure lights and i do feel they are more of a problem than they are worth

Without having sensors in the winter tires you will be unable to clear this. The reason the light is still on is because the bcm can't find your sensors.

Maybe when you change the tires they remove or broke one or the four sensors located inside the rim or wheel, at the inside of the valve, this sensors transmit the low pressure to the computer, and if one, or all, are removed or damaged, computer will register it at as a low pressure tire

WHEN SERVICE VECHICLE LIGHT COME ON.THE DEALERSHIP HAS TO CHECK OUT EMISSION CONTROL SYSTEM.MAKE SURE ALL EMISSION COMPONENTS IS WORKING PROPERLY.THEN THEY HAVE TO RESET SERVICE VECHICLE LIGHT WITH A SPECIAL SCANNER.