Question about 2005 Hyundai Elantra 2.0

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05 elantra 2.0 auto speedo dont work replaced all 3 sensors and body to eng grd is my cluster bad or drive gear bad help please how do i replace drive gear in trans help

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If i may ask why did change the sensor,did it show the the ABS light on the cluster?You need to perfom a cluster self diagnosis am not sure of the procedure on Hyundai since i am a Nissan Tech or perfom active test on the cluster,if not check the fuses.Back to sensors if you had an ABS light before and it cleared but still no Speedo then you might have bought wrong sensors,the ABS module can tell that there is a sensor due to resistance but as you drive it can't pick up your speed signal to the ECM

Posted on Apr 11, 2015

Testimonial: "i checked the fuses and relay they are all good also my digital odometer readout is lit up and last known mileage appears. just bought the car i am a tech but been pulling my hair out for 4 days now can you share any knowledge of the plastic speedo drive gear in the trans, is it replaceable? because it is a solid housing in that area, i dont see any access panels, can it be removed through the sensor access hole or does trans have to be gutted?"

  • 2 more comments 
  • Naiton Apr 11, 2015

    May please send me the photo of your Speedo drive so that I can see how it is located,and the cluster as well

  • janie stearns Apr 11, 2015

    i have since we spoke researched found video that showed the plastic gear mounted on bottom of the speed sensor is it possible that someone removed the drive gear off the sensor to stop calculating mileage and that advance sold me a sensor with the gear missing cause the new sensor has no plastic gear on it but the video on you tube showed the sensor with a gear mounted on his old one and the new one im confused and cant find a picture of a new sensor anywhere cant send pics of mine cause there at my shop but i will be damned if the gear suppose to be on it unless i can find pic on line of what new one looks like you can bet i will be at hyundia dealer at 8 am lol be damned if thats it wow

  • Naiton Apr 11, 2015

    That could be the answer to the problem for real

  • janie stearns Apr 12, 2015

    yep sure enough !! my girlfriends uncle got my drive gear out of a car at the junkyard in perfect condition , i put it in and sure enough i have a speedo now !!



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1994 prizm speedometer eratic tried 3 used clusters and replaced sensor New schematic shows ckt runs through ECM is this a possibility

automatic or stick shift car???????
prizm = toyota corolla, (vast parts to be had and books on same)
what are the symptoms, not guessing I need all facts on symptoms.
lets see. 1.6L engine or 1.8L , sorry they are not the SAME>
so what engine is there?

fuses test good?
car drives perfectly, all other electrics run ok , all lighting ok.
bad cluster , well what is bad, tacho, speedo, odometer, gauges, warning lamps. what?
say all things in the cluster that work and not work.
then and only then can any one give good advice.
ill run with only speedo needle bounces,
most 90s cars love to do that, its a fact. (high miles)
if need speedo and dead odometer that is unique.
that is correct more modern cars, all deleted that speedo cable
long long ago and is now a 10cent wire from cluster to ECU.
as did yours.
since the ECU knows speed already why not let it do the job for free. and did.
end history class but, the odd duck cars exist.

first thing to do is learn that the cars ECU has flash codes
you jumper 2 pins on a DLC, and the ECU flashes the CEL lamp with codes, if the code for VSS is set BINGO transmission VSS is dead, or erratic. code 42 tells you VSS is bad. does it flash 42?

The ECU uses speed, to calculate load and fuel better , knowing this facts.

but in your case its 1/2 true, the odd duck, the toyota way in 1994
is to have the VSS sensor drive the cluster
and the cluster speed drives the ECU.
(have book in hand from mitchells online, so can you of you look)

V3 is bad, (or as in all electrics, (laws) wires./loose/bad, there.
VSS means veh. speed sensor
my guess is you will ask where is it, like all here do not wanting
to pop 15bucks to read at mitchels.
At 55 mph:= 48 Hz ( the signal speed on it) square wave.

where it is depends on auto or stickshift
but its FWD and this sensor in on the side with axle ring gear
i guess.
the 3 wire sensor with R-Y, R-G and R-L color wires is a BINGO.


Mar 28, 2017 | 1994 Geo Prizm

2 Answers

Does my 1996 honda accord have a vehicle speed sensor

most old cars have a speedo cable.
is the odometer dead too. (we need that answer now)

there are 3 class evolutionary systems.
electric sender to cluster
and sender to PCM and PCM drives cluster.
but honda does this on diffr, dates than most cars. (i learned)

so lets do that. we login to and look , so can you at any time,
once a month i do random cars.
what engine, sometimes this varies by engine, and trans.
neither stated so Ill toss coin each time.
a/t trans.
has electronic (hall) speed sensor VSS and runs
engine, cruise. odometer and cluster.

the 96 has no speedo cable, and works in modern mode, very advance for this time
also any scan tool on earth fits the PCM scan port
and if VSS is dead, it tells you that with a DTC , vss dead.
saving all that work wondering why it dont work.
PCM must see it work
and cluster
and cruise
if only cluster fails, and both speedo and odometer then its bad.
if only speedo fails but not odometer , then speedo meter is bad.
its that easy.

Mar 25, 2015 | Honda Cars & Trucks

1 Answer

Speedometer cable

CLuster speedo and odometer
both dead?
cable. or drive gears in tranny tripped.
easy to check. ?
at tranny cable free, spin it same direction as speedo needle.
speedo dont work (both odometer and speed) then the cable is bad.
if not work, tranny drive gears to cable stripped out. some are plastic

Jan 11, 2014 | 1990 Toyota Camry

2 Answers

I have a 1997 buick le sabre with only 70k original miles... the speedometer works intermitently... now less and less... do I need to replace the whole instrument cluster? or is it a loose wire?? any...

you might want to check the speedo drive gears at the transmission and make sure they are in good shape and the gear that drives the electrical portion is spinning freely as any damage here will cause intermittent speedo operation.also if this is an electrically sent speedo from the tranny check the electrical connections.there is also a speedo buffer in the dash that rarely goes bad but is still a possibility.and lastly it could be the speedometer head thats the problem.when the speedo stops working does the odometer still work.if so then the problem is in the speedo head.i don`t remember which ones or what year they changed them but some you could just replace the speedo head and not the whole cluster assembly.

Jul 07, 2011 | Buick LeSabre Cars & Trucks

1 Answer

94 VW golf 1.8 auto speedo not working / -replaced speed sensor (under battery) -replaced cluster

Start by checking the wiring to the VSS (sensor) . Plug has 3 wires. One of the outside wires should have 12 volts when ignition on. Other outside wire should have an earth of no more than 5 ohms impedance. Centre wire should give an earth pulse when gearbox is turning. If live and earth are good, but no pulse, then sensor or its drive gear is broken. Problem is usually sensor suffering ppor earth connection. Ok to cut earth wire before sensor and atach to sutable earth point.

Mar 23, 2011 | 1994 Volkswagen Golf

2 Answers

My speedometer doesn't work and not sure if there is a cable or electronic sensor that needs to be replaced. It is a 1990 2wd regular cab pickup with a 22re manual transmission.

These have a nylon drive gear in the transmission you need to pull that out and look at the drive gear also look in the trans. and see if the main shaft drive gear is loose on the shaft if the speedo cable is old it may be binding it snakes through the body and has alot of bends

Mar 20, 2011 | 1990 Toyota Pickup

4 Answers

On a 57 plate suzuki swift the speedo and mileometre have stopped working.the fuel gauge is up and down.and now the diagnostic light has come on.any ideas

This sounds like the instrument cluster has gone faulty, unfortunately. With any luck, you might be able to find a replacement at a scrap yard somewhere to at least save some money. Otherwise, the dealership is the only other place in which to purchase one of these.

I hope this helps and good luck! :)

Dec 15, 2010 | 1997 Suzuki Swift

3 Answers

My speedometer stop working. I have a 05 sonata V6. I have replace part # 95400-3d300 hoping that my speedometer will function. Anyway, on the cluster it shows the miles when it stopped working only....

you dont say what the part is that you replaced!
So ill assume its the speedo sensor it may be the drive gear that drives the sensor worn out or sensor not aligned with its drive when replaced

Mar 28, 2009 | 2005 Hyundai Sonata

1 Answer

96 Taurus Speedo and Trans malf replaced the VSS

could be one of three things 1) could be a bad sensor 2) could be a wiring concern 3) could be a computer concern

Feb 24, 2009 | 1998 Mercury Sable

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