Question about 2001 Dodge Caravan

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Speed sensor location

My 2001 caravan 3.3 liter  went into limp mode. the codes p0500 and p1698 came up i checked the pcm and tcm connections and added electrical grease i need to know where the speed sensor is located the ones i see do not look like the pictures in the parts catalogs

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  • Anonymous Mar 17, 2014

    Mil on, no speedo. Van in limp in mode, 2nd gear only. p 1697. Is this a bad PCM or is it the TCM???



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Hi my name is Allen!

Both the Input and Output speed sensors or mounted on the side of the trans, they are not to far away from each other, you will see the electrical plug coming out of eack one of them. They are round, biege in color with a black end on it where the connector plugs into. If you don't know which one is bad you will need to replace them both.

For further assistance contact me at FixYa!

Posted on Jan 03, 2009

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Had the same problem with the codes, and tranny was doing some crazy stuff. turned out it was only the eatx fuse in the fuse box under the hood.

Posted on Sep 07, 2010

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I had the exact same problem. Under the battery tray is a ground stud for a wire that branches off from the harness. This is the ground wire for the tcm. loosen it , clean the contact, and re tighten it.

Posted on Jul 05, 2009

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the tcm is located in the fender well behind the bumper drivers side black box check the wiring for bad cannection,

let us know what you find there are thousands of us with the same problem


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Hi, Got a Chrysler Voyager 3.3 on a 2002. Car in limp mode and speedo not operating. Fault code (P1698 no canbus message) Changed two speed sensors on side of transmission, all fuses ok and re...

How is your transmission shifting?
the reason I ask is because your code is a communication loss code between the TCM and the other module(s). It's not uncommon for the wiring problems to develop in the harness that runs from the PCM in front of the battery to the TCM on the Pass side inner fender. Look around where the harness is tie strapped to the transmission pan. it's common for the wires to break or be full of water especially after somebody has had the pan off or the transmission has been removed for repair. Can also be a wiring problem right at the PCM or TCM connector or the TCM itself TCM is transmission control module)
although not as likely as a wiring issue.
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