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ARTHUR DAVEY Posted on Aug 07, 2012
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MY ABS AND BRAKE LIGHT ARE ON AND MY SPEED ODOMETER DOES NOT WORK INTILL 60, AND I ALREADY CHANGED THE SPEED SENSOR ON THE BACK OF THE TRANSMISSION, IT STILL DOESNT WORK.

WHAT DO I NEED TO CHECK

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Jeremy W.

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  • Dodge Master 5,332 Answers
  • Posted on Aug 08, 2012
Jeremy W.
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Check the speed sensor on the top of the differential. It's the one that the ABS and the speedometer uses.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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  • Contributor 2 Answers
  • Posted on Jan 07, 2019
pkasprzyk
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Before replacing ANY sensors. Check the plug right behind the battery the goes into the abs module . I had the same symptoms and the plug had gotten moisture in it. Cleaned it and added dielectric grease. I am sending back the speed sensor back today!

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5 Related Answers

John Fears

  • 150 Answers
  • Posted on Jan 02, 2010

SOURCE: ABS light on, brake light on, speedometer does not

the sensor on top of the differential?if this is the one you changed then check the wires on the frame rail above the rear left tire for broken wires or dog gnaw marks.

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A

Anonymous

  • Posted on Aug 23, 2008

SOURCE: lights staying on

speed sensor prob went bad. it's at the tail end of the transmission on the drivers side

Anonymous

  • 74 Answers
  • Posted on Feb 17, 2009

SOURCE: dodge ram1500 brake light abs light spedometer odometer no work

you should have your vehicle scanned with OBDII.(on board diagnostics) . take it to a shop and tell them your engine light is on and they'll hook a computer to it and find out why

Anonymous

  • 2 Answers
  • Posted on May 24, 2009

SOURCE: transmission doesnt shift abs & brake light on speedometer doesnt work

I had the same problem with ABS light and speedometer, I was told that it is the transmission control module. It has not yet stopped shifting but I have had times where it just wont stay running. It will start and then stall. Hope this helps.

Anonymous

  • 104 Answers
  • Posted on Jun 03, 2009

SOURCE: I have a 1998 ram 1500 4x2 it showing a 0500 code, speed sensor.

Yes I had the same problem and it was the sensor on the rear axle.

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Check your other post for a solution

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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I second the second answer :) My ABS light was on, my BRAKE light was on, my CHECK ENGINE light was on, my SPEEDOMETER wouldn't work below 35 mph, then quit working alltogether. Once the speedomenter quit working the odometer and cruise control quit working. I replaced the rear differential mounted speed sensor ($33) and then reset the CHECK ENGINE light by disconnecting the positive battery cable for a couple of minutes. EVERYTHING then worked.
Replace rear differential speed sensor as follows:
a) remove parking brake cable bracket (1/2" socket)
b) remove speed sensor bolt (9/16" deep socket)
c) remove metal speed sensor cover
d) remove speed sensor from rear differential housing (use channel lock pliers, twist gently back and forth while applying upward pressure. Once the speed sensor has a small gap between it and the rear differential housing, insert a flat-blade screwdriver and gently apply upward pressure while gently twisting speed sensor back and forth.
e) disconnect speed sensor from speed sensor cable
f) lubricate new sensor with WD-40, insert into rear differential housing. It will NOT go in all the way by hand, so do NOT force it nor hit it with anything made out of metal.
g) replace metal speed sensor cover
h) Insert speed sensor bolt and tighten LIGHTLY until a small amout of pressure is felt. Tap speed sensor with rubber hammer until it pops into housing. Finish tightening of speed sensor bolt.
i) replace brake cable bracket, replace 1/2" nut and tighten
j) disconnect positive battery cable for 2 minutes, reconnect positive battery cable
h) start vehicle, enjoy,

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