Question about Chevrolet Lumina APV

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Speedo not working very erratic shifting

What are the symptoms of a bad vss

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  • apache137 Apr 18, 2009

    changed the vss still no speedo wont shift and ses light

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Change the speed sensor it will be on the transmission , lower passenger side

Posted on Apr 15, 2009

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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)
1994
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.

vss-5okvwe4z4w3ktgpaujwqctz2-1-0.jpg

Mar 28, 2017 | 1994 Geo Prizm

1 Answer

I have a 1999 suzuki grand vitara 2.0 5 speed what speed sensor do I need and what colour


easter egg hunt 1million
Car speed?
or ABS speed sensors. we cant guess, whats wrong, can we.?
USA car,? we are USA, cars not here are vastly different.
so........????????
why ask not telling problem? scans told you sensor is bad
post the DTC error. speedo dead.Odom, dead? what?
J20 engine ,
5 speed stick shift box. manual trans,,m/t
4wd or 2wd?
toss coin NOT ABS sensors.
there are 2 speed sensors ill do all 3 permutations of car
4wd one or tail of transfer case
2wd one on tail of 5speed box.
any, the backup speed sensor in the speedometer cluster
89-98 years and was deleted 1999, usa.

why ask ,tell why. so we can be on the same page and
not have to document all the above.

color is of on concern, only correct part numbers matter !!!

colour (non usa spelling) is my only real useful HINT.
never said speedometer fails. or odometer fails
the trans is manual so no speed sensor needed ever there to shift automatially,its a stick

scan it yet.?
THAT BE FIRST.

i looked at our 1999 usa GV . serv. man
best i can tell speedo has new electronic head.
no speedo cable. first year, in fact. (i owned a 97 and 04)

so when VSS goes dead (say)
the speedo goes dead
odom goes dead
and ECU sets DTC errors for VSS dead.
3 clear symptoms.
some cars have different VSS1 to match, axle gears.
the vss gear on end .

on newer cars with stick shift
like mine now
the aBS sends speed to PCM
so there is no transmission speeds sensors at all , 6sp, m/t
so lacking symptoms, me bollixed.

Feb 28, 2017 | 1999 Suzuki Grand Vitara

1 Answer

How to repair speedometer 95 sidekick


hey and oldie but goodie.
why not post the full symptoms. ????

Speedo dead, makes noise, bounces? what? stuck high? what?
odometer dead.
CEL glows running, the check engine light glows, running
and you insert the 1cent paper clip in the DLC connector and you get
code flashing. code 24, VSS dead?
http://www.fixkick.com/CEL/CEL.html

if yes, the cable has snapped. (fell off at either end)
if not VSS dead, then the speedo is dead
if both odometer and speed are dead and VSS are dead the
snapped cable, or cable fell off rear of speedo head.
if VSS is not bad. (no 24s)
and only speedo is dead but , odometer is good
then that means the actual speedo clock inside the head is bad.

to repair a dead speed/cluster, you replace the whole head
if real frisky then you do this.
suzuki even sells new clocks, but are very expensive
what i do is find a used head. and use that. (car-parts.com) or at fleabay.
sometimes i mix 3 heads to get one, good head.
that is all you can do, on old cars unless rich, and $200 head is pocket change.

http://www.fixkick.com/sensors/speedo/unsafe-at-any-speed.html


tell more get more, ask.

Oct 18, 2014 | 1995 Suzuki Sidekick

1 Answer

Speedo fuse ????


post series LC ?
post country
?, and engine size.?
then post, symptoms./??
speedo does what exactly
and odometer , yes they are related.
my wild guess, is this car has advanced cluster design.
all 100% electronic with "CAN-BUS" controls.
so in most cases of that if ONLY speedo is dead, then it is.
if VSS is dead, scan the cars PCM, if mph vss is flat lined
the Speedo and the odometer goes dead.
the VSS is what increments the odometer. (like a clock)

Feb 12, 2014 | 2004 Toyota Land Cruiser

2 Answers

Speedometer not working


the vss runs off a gear in your transmission.

a70e41a9-9601-4aca-9dcf-8e3f0081dfde.jpg

Dec 09, 2013 | Cars & Trucks

1 Answer

95 buick regal custom speedo issues


There is a gear that drives the sensor gear much like the old speedo cable gear.
If you connected the sensor and the check engine light went off, chances are the sensor is working.

Jul 04, 2013 | Cars & Trucks

1 Answer

Speedometer acting erratic on 99 chevy cavalier


Check the VVS (vehical velocity sensor) "speed sensor", The vss controls shifting and cruise control as well as speedometer. If the Cavalier shift's fine and cruise control work, the it's going to be a good chance that the speedometer n the instrument panel may have a bad connection or the stepper motor needs to be replaced. Get a service book and attempted to check for voltage going to speedo cluster( at dash), to determine if your stepper motor is bad and replace the motor or the whole instrument panel.
Good luck and thank you for using fixya.

Mar 11, 2010 | 1999 Chevrolet Cavalier

3 Answers

Trans shifting prob n gas mileage


have the shift solenoid checked out
Auto Zone will perform a free scan of the computer to dee which one is at fault

Feb 28, 2010 | 1996 Ford F250 Crew Cab

1 Answer

98 explorer 4.0 auto, speedometer quit working


YES / VSS ON TRANS GIVES TRANS CONTROLLER SIGNAL TO SHIFT.ABS RUNS SPEEDO

May 06, 2009 | 1998 Ford Explorer

1 Answer

Shifting problem


This sounds like a VSS (vehicle speed sensor) not being read correctly by the computer, or the VSS is inaccurate, erratic, etc. The erratic speedo seems to verify my theory doesn't it???

Jan 25, 2009 | 1994 Honda Accord

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