Question about 1999 Dodge Ram

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

I replaced the speed sensor on the transmission.  Check engine light came back on. ABS light and brake light came on a couple of years ago and it did need a little brake fluid. they have been and still are on. A few months ago speedo started to act up. not working till you reach 35-40 mph. then the code popped up. I replaced trans speed sensor but not the one on rear axle. I figured it was trans sensor that affects speedo. what next the axle sensor?

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

Posted on Jun 03, 2009

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Someter dosnt work code p0500 when code cleared eng light comes on as vehicle shifts into 2nd everytime same code reoccures


code p 0500 refers to vehicle speed sensor(VSS)--circuit malfunction===causes --wiring--VSS --- ECM
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check all wiring connections to the transmission
the VSS reports to the transmission control module, the road speed and that is when the TCM knows when to change ratios
At this point I would be closely checking the wires and harness connections and then replace the VSS

Apr 12, 2016 | Cars & Trucks

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My 1995 dodge 3500 wont stay in lockup


Do a OBD1 fault code test and see if a speed sensor code shows up, if this sensor is defective it will cause the truck to drop out oif OD. The VSS sensor is located on the drivers side of the transmission case. Use the Check engine light flash out to read the code.

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My dodge caravan 3.3L shows 5 malfunction codes what do they mean po455 po846 po500 po700 po732


P0455 = Evap leak monitor large leak detected.
This code usually means the gas cap may have been loose or needs the rubber gasket.

P0500 = No vehicle speed sensor signal.
Vehicle speed sensor is located on the transmission near one of the axle shafts (it may need replacing).

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This simply means you have transmission related codes.

P0732 = Gear ratio error in 2nd gear.
This code is of some concern, it means the transmission is slipping in 2nd gear. However the trans may be in limp mode due to the speed sensor code (limp mode means the trans starts out in second gear in order to at least get to a mechanic). The first thing I would do is have these codes cleared as there may be absolutely nothing wrong with the transmission (especially if you pull the trans dip stick and the fluid does not have a burnt smell. The vehicle should drive normally after that. If the check engine light comes back, have the codes scanned ASAP (before any other unrelated code sets). Chances are it may be the output speed sensor if this happens (easy fix). Hope this helps

Regards

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1 Answer

What is code P0720 on a 1998 dodge ram


The Output Speed Sensor is located on the drivers side toward the drive-shaft end of the 4x4 44RE Transmission. (with no Check engine Light) My D would shift hard. Especially on cold mornings after sitting all night it would almost always cluck into first gear and not want to shift from 2nd to 3rd unless I floored it or let of the gas for a second. My tach( engine speed) would also jump up a few notches or surge while cruising on the flats of the interstate. Even with cruise engaged. Then to top it off just recently whenever the fuel level was low( on or below the Empty mark) which I have done many times without any issues , My D. will not shift out of first gear. I'll go up to just about redline and let off and then press the gas again and nothing just revs like in neutral. I would have to come to complete stop and then I would have first again. ( and yes i tried shifting manually but same issue. Finally the check engine light came on so I took it to a transmission shop and they said they never heard of such a thing.( about the stuck in first gear while low on fuel. At the time I stopped my gas gauge was at 1/4 tank and not having the problem, so he said to bring it back when it was acting up again. Instead I drove to my local Autozone and they used they're scan tool to pull the code. It was a code P0720 (Output Speed Sensor Circuit) I went home and changed this and all I can say is WOW. Just like brand new. I only wish this code would of set the check engine sooner. Was thinking the Transmisson was about due for rebuilding I purchased the Duralast one $24 dollars and some change. Don't forget to grab a quart of AFT+4 mopar or equivalent transmission fluid ( this is to add to bring to fill mark after installation) No matter how fast you are you will still lose a pint or so) Directions for instillation. 1) Check the new sensor out and find a wrench or socket that will fit it. 2) Gather a drainpan or some rags to catch the transmission fluid that will pour out of the sensor hole once removed. 3)Set E- Brake and jack up the drivers side of the D. or drive up on 2 ramps and set E-Brake which is what I did. 4) Gather every thing i have mentioned above and slide it under the middle of the D. 5) unplug the wire harness from the Sensor by pulling up the locking clip on the harness being careful not to snap it. 6) Position the drain pan or an old blanket directly underneath.7) Unscrew the old worn sensor counter clock wise until almost all the way out. 8) with new sensor in hand finish taking out old sensor and quickly screw new one in finger tight.9) grab a rag and clean up the transmission fluid that got all over the new sensor.10) Finish tighten the sensor until nice and snug. Remember it is only plastic and can snap with excessive force being applied. 11) Clean up the wire harness if required and snap back into place. 12) To reset your check engine light. simply disconnect your negative terminal on your battery for about 30 seconds( Some say to turn the ignition key on and off within the waiting period) which I have not ever done and had no problems. So either way it works to clear all codes. 13) Reconnect Neg. terminal snugly. 14) In Considering how much fluid you lost I figured about a pint. which will not cause any problems as long as the Transmission was at the full mark in the first place. If unsure just add pint or so. Better off not overfilling. Take it for a test drive you should notice a difference immediately. Also before tossing your old sensor check the end that inserts inside the Transmission. It is magnetic and if you see excessive metal shavings you should have the Fluid and filter changed also.Don't forget to have the Bands adjusted to specs at the same time. One is on the outside and one on the inside. Also if you have a local mechanic or any other place besides the dealership do this maintenance Tell them that they have to use ATF+4 Mopar or Equivalent. Using any other like Dextron, all purpose will harm these Dodge Transmissions or void any warranty that may exsist

Sep 28, 2011 | 1998 Dodge Ram 1500 4WD

2 Answers

The VSC and Check engine light turn on for lexus 1999 the cood is p0500


Toyotas and Lexus cars have some unique feaures. If your fuel cap is loose or the O2 sensors on the exhaust are faulty this results in an emission problem and the engine computer unit (ECU) engages the check engine light and disables the VSC (the VSC light comes on to warn you that it has been disabled). However you have p0500 code which says the car has no speed sensor signal. The seed sensor is located on the side of the final drive from the transmission and its job is to measure the speed of rotation of the output shaft. The ECU will compare the signals from this shaft along with the speed sensors in the wheel hubs. If there is a difference between these signals the VSC is engaged to apply braking effort to which ever wheel is slipping (running faster) than the other or that the transmission speed sensor would warrant.
So you either have an emission fault has fed back to the VSC and speed sensor missing (p0500) condition, or you have a faulty sped sensor which has tripped the VSC light and in turn the CEL.
Check your fuel filler cap is on tight, turn radio off and disconnect the negative lead to the battery for 5 minutes (this should clear the ECU memory of the code error). If p0500 error and CEL and VSC lights come back on then check the electrical connection to the speed sensor. Ensure it is clean and making a good contact, check the wiring for continuity. If everything else looks good consider changing the speed sensor.

Sep 14, 2010 | 1999 Lexus ES 300

1 Answer

My speedometer will not work check engine light goes on and off and the overdrive indicator light flashes. All this happens intermittently with hotter weather it seemingly happens more frequently. Scanned...


code p 0500 is for the vehicle speed sensor (VSS) which works the speedo as well as the ratio changes
code p0720 refers to the output shaft sensor --ECM or transmission control module (TCM)
the vss reports to the tcm which reads the road speed and gear ratio and shifts the appropriate solenoid

May 12, 2017 | Cars & Trucks

1 Answer

Check engine light on, autozone says speed sensor code, most likely the one on rear end housing...replaced, still have problem, might it be the other speed sensor on trans???


More then likely transmission speed sensor, if it was the one at the rear end or one of the wheel's your A.B.S. light would have been on.Hope this was very helpful.

Apr 09, 2010 | 1998 Dodge Ram 1500 4WD

1 Answer

I turned the key to my 2001 dodge ram 3500 and it


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The simplest thing to do is to reset the code and see if it comes back. Next, check all wiring and connectors that lead to the speed sensor. The location of the sensor depends on your vehicle. The sensor could be on the rear axle, transmission, or perhaps the wheel hub (brake) assembly. If the wiring and connectors are OK, then check the voltage at the speed sensor.
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Detected in ECM
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Feb 17, 2010 | 2001 Dodge Ram 3500 Truck

1 Answer

Speedometer and Odometer not working , Break Light and Abs light on


Most likely you have a check engine light on also. And if you have codes pulled it will be 0500, speed sensor. Replace the one on the rear axle and all should be good. Oh and don,t forget to have code cleared.

Jun 29, 2009 | 1999 Dodge Ram

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