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Code p0500

 
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  #1 (permalink)  
Old 05 Jul 2016, 05:55 pm
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Default Code p0500

I got this code in my wife's 2001 pt cruiser at about 250 miles later after I have replaced both input and output vss. The speedometer jumps all over most the time 0 120 back and forth causing the car to buck. It's super annoying not sure what the issue is. Just got the code and it's a p0500 confirmed and pending.

Last edited by Derekhollister; 05 Jul 2016 at 05:57 pm.
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Old 05 Jul 2016, 08:25 pm
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Default Re: Code p0500

P0500 - Vehicle Speed Sensor Circuit Fault Conditions:

Possible Causes:

1. Vehicle Speed Sensor or Output Speed Shaft signal circuit to the PCM is open or shorted to ground
2. Vehicle Speed Sensor or Output Speed Shaft power circuit is open or shorted to ground
3. Vehicle Speed Sensor or Output Speed Shaft ground circuit to the PCM is open
4. Speedometer pinion or the Vehicle Speed Sensor is damaged or has failed

Why was the input and output vss replaced?
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Old 05 Jul 2016, 08:36 pm
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Default Re: Code p0500

Because it was having a vehicle speed issue replaced then both still continues. It doesn't do it all the time tho. Sometimes it's fine sometimes not.
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Old 05 Jul 2016, 11:08 pm
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Default Re: Code p0500

Quote:
Originally Posted by Derekhollister View Post
Because it was having a vehicle speed issue replaced then both still continues. It doesn't do it all the time tho. Sometimes it's fine sometimes not.
Was it the same code before replacing both sensors?
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Old 06 Jul 2016, 05:50 am
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Default Re: Code p0500

Can't recall
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Old 06 Jul 2016, 06:55 am
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Default Re: Code p0500

They get pretty nasty seeing as the position they're in. Did you clean the connectors with some electrical cleaner when you replaced the sensors? If not, you might give that a try. And make sure there's no breaks or chaffing on any of the wires.
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Old 06 Jul 2016, 07:05 am
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Default Re: Code p0500

When I did them I didn't see any abnormalities as cracked wires corroded pins. Not sure if the tcm is the culprit or if somthing small is.
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Old 06 Jul 2016, 09:50 am
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Default Re: Code p0500

Since the car's bucking, I'd pull the plugs and have a look at them and make sure they're not getting fouled by the apparent misfire. I'd clean the throttle body too. BUT, that's just something I'd do. I'm NOT an ASE mechanic. I don't even claim to be a mechanic.
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Old 06 Jul 2016, 10:44 am
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Default Re: Code p0500

Since P0500 is a generic code I would suggest resetting the engine trouble codes with an OBDII Scan Tool and see if it comes back. This is why I was asking what the code was before replacing parts.

With an generic code you don't want to be replacing parts until you get a code more specific to the problem such as P0501.

Don't use the key dance as you might miss some codes that are stored.

Harbor freight has reasonable OBDII Scan Tools.
Search results for: 'OBDII Scan Tool'
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