Question about 2007 Mazda Speed 3 Hatchback

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Speedo reads slower than actual speed by about 8%

Hi. I need to "tap into" the speed sensor wire so that I can electronically change the pulses (I have purchased a "speedo corrector" kit from Jaycar Electronics).

I have spent hours looking for the wire. Does anybody know exactly where it is and the colours?? Thanks in advance. Greg.

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  • Contributor
  • 11 Answers

I fixed it. You just need to physically move the speedo hand anticlockwise. Be careful though.

Posted on May 21, 2014

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Posted on Jan 02, 2017

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  • 183 Answers

SOURCE: Mazda 3 2004 Oxygen Sensor

It calls for a four wire sensor. Try wwwoxygengeek.com call there 1800 number for a thorough listing.Because somtimes they dont list a vehicle on there site.Good Luck!!!

Posted on Aug 04, 2008

emjem74
  • 162 Answers

SOURCE: speedo plug gear has broken off into gearbox

well you can but it is a bit more difficult than that as you will need allignment tool to replace and also the might be excess tension and you might need a pulling tool also to remove. it is very unusual that the mechanism drops into the gearbox though? well without effecting the performance of gearbox such as whines and creaks?

Posted on Mar 04, 2009

  • 271 Answers

SOURCE: The speedo on my 98 1.8 i six speed mx5 sometimes

Change speedo sensor located on a gearbox-if electric.If wire-check wire and dashboard instrument panel

Posted on Nov 30, 2009

Testimonial: "Thanks. I'll pass this on to my mechanic."

wireguy212
  • 1627 Answers

SOURCE: Speedo and odometer stop working

Replace the transmission speed senser in the transmission.

Posted on Dec 03, 2009

Ken17402
  • 615 Answers

SOURCE: speedo fluctuates between 20 &

remove your speedo cable if its in ok shape lubercate it with high temp greese if its not in good shape and it may not be replace it before it breaks off in housing

Posted on Nov 21, 2010

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2 Answers

Why is the speedometer reading erratically?


Depending on the type an year vehicle an the electronics on the car , the instrument cluster could be at fault ! The stepper motor that moves the speedo could be the problem if a GM product ! As far as the speed sensor goes a few other things wouldn't work very well if it were bad an the check engine light would be on more then likely because this is an input to the PCM - engine computer ! The transmission would shift erratically !
Speedometer
The IPC displays the vehicle speed based on the vehicle speed signal from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (0 mph) if a malfunction in the vehicle speed signal circuit exists.
So I would say the instrument cluster is bad !

Jun 10, 2015 | Cars & Trucks

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FIX SPEEDO MAY NEED A SPEED SENSOR AND IT WILL NOT SHIFT IF IT DOES NOT SEE THE OUT PUT SPEED

Feb 21, 2013 | Cars & Trucks

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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.

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Hi. I have a 1990 c1500 silverado. Originally it had a manual gear box which was replaced with a turbo 700R4. Now ive put in a new engine and a turbo400. the T700 came with an electronic pulse generator...


I would use the electris set up for a 400,they were availiable in the late 80s and you can still get the parts.The rotor(tone) is different that 700 because inside hole is larger.You can buy a kit from GM to reprogram the cluster to match tire size and ratio.Calibration Kit - 25085515
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Erratic speedometer causing miss shifting. Seems to only happen with Security codes or possibly other engine codes as well. the latest issue im haveing seems to be security of some kind.maybe a bad chip in...


Propably the VSS - vehicle speed sensor . The PCM uses this input to control shifting an speedometer information . Or a wiring issue . If you think there are othe codes stored in the computer the wise thing to do would be to have read or pull . You don't say what engine size yours is ? 3.1 L or the 3.8 L ? How many key's do you have on your car key ring ? Have other car key's ? confusing the control module . Speedometer
The IPC displays the vehicle speed based on the information from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit (4000 pulses/mile) from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 mph (0 km/h) if a malfunction in the vehicle speed signal circuit (4000 pulses/mile) exists.

Mar 23, 2017 | 2002 Pontiac Grand Prix

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Seat leon 2003 problem with speedo not working and fuel gauge faulty is there problem in dash


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Jan 25, 2010 | Cars & Trucks

2 Answers

My 1996 Honda Odometer stopped running, It is currently at 164999 and won't go any further Both the distance meter and odometer don't move


You just have a bad vehicle speed sensor, has three wire's going to it, sit on top of transmission between transmission and fire wall on top of transmission, held on with a 10mm bolt.Depending if it's manual or automatic transmission the part will cost any where between $70.00 and $160.00.Hope this was very helpful.

Dec 30, 2009 | 1996 Honda Civic

1 Answer

The speedo in my 2000 Rav4 doesnt work.


to test vechicle speed sensor.safely raise front of vechicle.block back wheels besure you are on level ground.get some help to do this.you need a digital volt meter set it on AC SCALE.TURN IGNITION ON DONT START ENGINE.TAKE VOLT METER BACK PROB THE VECHICLE SPEED SENSOR CONNECTOR.TURN YOUR WHEEL WITH ONE HAND YOU SHOULD GET 0.5 VOLTS.AS YOU SPIN WHEEL FASTER YOUR VOLTS ON AC SCALE SHOULD INCREASE.IF IT DOES NOT WORK.IF WIRES ARE OKAY.YOUR VECHICLE SPEED SENSOR BAD OR THE MAGNET GEAR IN TRANSAXLE IS BROKE..

Jun 22, 2009 | 2000 Toyota RAV4

1 Answer

1995 ford econoline van speedo/trans


It is either the speed sensor, the wireing in between ot the speedometer module it self. The sensor sends pulse train signal to the speedometer module and there it drives the speedometer and is divided in frequency by about 7 and feed to the computer and the cruise control. When the signal drops the Engine management computer thinks the speed is real slow and raises the transmission pressure.

In the one I had it was a cold solder jooint on the bacjk of the speedometer module itself but this was the divided output and the speedometer itself still worked. The easyest part would be the sensor that mounts on the rear axile I believe and should cost less than 30.00 dollars. If not that thebn it's the wiring or the speedometer module electronics..


Mar 04, 2009 | 1995 Ford Econoline

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1998 Olds Silhouette Auto Trans & Speedometer Problem


Hi and welcome to FixYa,

Initially, check the wiring/connectors to the speed sensor. The speed sensor is at the transmission would look like the image below.
f19e2c8.jpg
Incidentally, the speed sensor not only sends signal to the speedometer, is signals are also used by the engine computer and the transmission control. This would partly explain all the other concerns.

Check and perform preliminary visual or necessary inspection. Pls post back result(s). Good luck and Thank you for using FixYa.

Jan 18, 2009 | 1999 Oldsmobile Silhouette

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