2000 ford excursion p0500 code

[SOLVED] P0500 Code – Vehicle Speed Sensor ‘a’: Symptoms, Causes, And Fixes

Are you experiencing trouble with your vehicle’s speedometer? The automobile fault code P0500 might be the culprit.

This code indicates a problem with the Vehicle Speed Sensor (VSS) or its related components. The symptoms include a malfunctioning speedometer or erratic speed readings.

The most common cause is a faulty VSS, but it could also be due to issues with the sensor’s harness or connectors, or even a faulty Engine Control Module (ECM).

The repair process involves visually inspecting the wiring harness and connectors for any damage, as well as checking for broken or corroded pins.

It’s important to address this issue promptly as it can affect the accuracy of your speedometer. The repair difficulty is moderate, and it typically takes around 1.0 hour to fix.

Decode The Symptoms Of Code P0500: Unveiling The Automotive Mystery

Experiencing speedometer issues, erratic shifting, and ABS malfunction?

Check out the symptoms of fault code P0500 below.

• The symptoms of the automobile fault code P0500 include: 1.
• Malfunctioning speedometer 2.
• Inaccurate or erratic speed readings 3.
• ABS (Anti-lock Braking System) warning light illuminated 4.
• Traction control system not functioning properly 5.
• Cruise control not working 6.
• Transmission shifting issues 7.
• Harsh or delayed shifting 8.
• Engine stalling or hesitation 9.
• Poor fuel efficiency 10.
• Vehicle not passing emissions test.

Unraveling The Mystery: What Causes Fault Code P0500?

The automobile fault code p0500 can be caused by a faulty vehicle speed sensor, open or shorted harness or connectors, poor electrical connection in the vehicle speed sensor circuit, or a faulty Engine Control Module (ECM).

• The fault code P0500 can be caused by a faulty vehicle speed sensor.
• It can also be caused by an open or shorted vehicle speed sensor harness or connectors.
• Another possible cause is a poor electrical connection in the vehicle speed sensor circuit.
• Lastly, a faulty Engine Control Module (ECM) can also trigger the P0500 fault code.

Fixing Code P0500: Simple Steps To Get Your Car Running Smoothly!

To fix the p0500 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

• To fix the automobile fault code P0500, start by checking the possible causes mentioned above.
• Then, visually inspect the wiring harness and connectors related to the issue.
• Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
• This fix typically takes around 1.0 hour to complete.

Cracking The Code: P0500 Fixing Cost And Complexity Unveiled!

The factors influencing the diagnosis and fixing cost of the automobile fault code p0500 are the estimated repair time and the hourly rate charged by auto repair shops.

The estimated repair time for this fault code is 1.0 hour. Auto repair shops typically charge between $75 and $150 per hour for their services. These factors will determine the overall cost of diagnosing and fixing the p0500 fault code.

Decode P0500: Unveiling Symptoms And Solutions For This Fault Code

If you see the Engine Light ON or the Service Engine Soon Warning Light in your car, it could be due to the fault code P0500. This code is associated with issues related to the vehicle’s speed sensor. One common symptom of this fault code is that the speedometer may not work properly.

You may notice that the speedometer needle doesn’t move or shows incorrect readings. Additionally, the transmission shifting may also be affected by this fault code. It is important to address this issue promptly to ensure accurate speed readings and smooth transmission operation.

If you’re seeing fault code P0500 in your automobile, it could be due to a faulty Vehicle Speed Sensor (VSS). Other possible causes include an open or shorted VSS harness or connectors, poor electrical connection in the VSS circuit, or a faulty Engine Control Module (ECM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the “Possible Causes” listed above for a comprehensive solution.

To fix fault code P0500, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This could be a result of a faulty vehicle speed sensor, an open or shorted sensor harness or connectors, or a poor electrical connection in the sensor circuit. Make sure to thoroughly examine the wiring and connectors to identify any potential issues.

To resolve fault code P0500, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins. Additionally, check the possible causes listed above, such as a faulty vehicle speed sensor or poor electrical connection in the vehicle speed sensor circuit. Taking these steps will help identify and address the issue effectively.

If you’re experiencing issues with your vehicle’s speedometer or cruise control, the culprit could be the P0500 fault code. This code is typically caused by a faulty Vehicle Speed Sensor (VSS) or issues with the VSS circuit. To fix it, visually inspect the wiring harness and connectors for any damage, and check for broken or corroded pins.

P0500 Code: Vehicle Speed Sensor ‘A’ Malfunction (Location)

You are driving, and all of a sudden you notice that the car’s speedometer doesn’t work. That is followed by the turned-on check engine light and strange transmission behavior. The first thing to do is to check the car with the OBD-II code reader. After a check, the P0500 code pops out. What does it mean?

When a P0500 code comes up on the OBD-II scanner it comes with the message “Vehicle Speed Sensor (VSS) Malfunction”. A VSS is a sensor that monitors the speed of the vehicle. It sends information to the powertrain control module (PCM) and the engine control module (ECM). With that information, the automatic transmission can shift gears at the right time.

We do not recommend driving with this error. It can cause problems with the transmission, and you will not have information about the vehicle’s speed. In this article, we will cover the diagnostic of this error so you don’t need to waste too much time on it. We will also recommend the best ways to resolve this issue, so stay with us.

Understanding the P0500 Code: What Does It Mean?

A P0500 error code is used to identify a problem with the vehicle speed sensor. A cause for this error can be the sensor itself, faulty wiring, or a problem with connectors. On rare occasions the problem is caused by a faulty speedometer or an ECU needs to be reprogrammed due to new tires.

Anatomy of OBD-II Fault Codes

The OBD-II diagnostic system is designed to simplify the detection and diagnosis of all sorts of mechanical and electrical issues in the vehicle. Every vehicle sold in the U.S. after 1996 uses this system.

OBD-II error codes are categorized so it is easier to navigate through them. They all start with a letter, which shows what system in the car is affected:

• U – Network communication
• P – Powertrain
• C – Chassis

The first digit shows is the error code standardized (0) or it is a manufacturer-specified code (1). The second digit points to a system that is affected, and the third and fourth digits point to a specific error code.

With this diagnostic system, every owner and driver of a car can scan its vehicle from time to time, and check for errors. That way they can prevent the further development of an issue, and resolve it at its start.

P0500 Code Specifics: Vehicle Speed Sensor Malfunction

A P0500 code suggests a problem with the vehicle’s speed sensor (VSS). The VSS is usually placed on the transmission housing. In some vehicles, it is located inside the wheel well or attached to the speedometer.

A reluctor ring located on the transmission shaft passes over the tip of the VSS every time it rotates. This movement is defined as an interruption to the sensor circuit. These interruptions are then translated by the sensor into vehicle speed. The sensors send that information to the ECM , PCM, and the speedometer.

When a code scanner reads a P0500 diagnostic trouble code that means that VSS or its wiring harness is damaged. The cause for a P0500 can also be a problem in communication between the VSS and the modules that are monitoring its work. In rare situations, the trigger for this code is a broken speedometer.

Sneaky Causes of the P0500 Code

If none of the expected causes is to blame for the P0500 error, then these are the possible culprits:

• The ECU is not configured for the actual size of the car’s tires
• One or more drive gears are damaged
• The ECU is not working properly.

How Does the P0500 Code Affect Your Vehicle?

Symptoms of a p0500 code malfunction.

The symptoms of error code P0500 are very easy to spot. The first thing that will show up is a turned-on check engine light . Next, the speedometer and/or odometer will not work properly, or at all. Then comes unusual gear shifting. When the transmission is not receiving proper information regarding the vehicle’s speed, it cannot shift gears properly.

Sometimes, these symptoms are followed with an ABS dash warning light . That means that the ABS is out of function. 

Risks and Damage: Consequences of Ignoring a P0500 Code

A P0500 is considered to be a moderate error case. You will still be able to drive the car, but it will be followed by problems with shifting gears. If the ABS and ESP safety systems are also disabled, then you won’t have electronic assistance while driving in difficult conditions. If you are living in a climate with a lot of snow and rain, it is a big risk. 

Besides those problems, you won’t have information about the car’s speed and RPMs , which can be annoying. If you don’t know at what speed you are driving, you may end up going over the speed limit and getting pulled over by the police.

How To Fix the P0500 Code: A Step-by-Step Guide

Diagnosing and fixing this error is not a difficult task for someone with some experience. A service manual can come in handy, so you can locate the sensor easily. Depending on the vehicle and your experience, you may need to replace the sensor or the wiring between half an hour and one hour.

Tools You’ll Need to Diagnose and Fix a P0500 Code

First, you will need an OBD-II scanner. With it, you can detect the error code. If you want to test the vehicle speed sensor you will also need a multimeter. With a multimeter, you can test the sensors wires, and do they deliver current to the sensor.

DIY P0500 Code Troubleshooting and Repair Instructions

• Use the OBD-II scanner to check for errors. Connect the scan tool to the ECU, and do a test of the vehicle. If any other error codes appear you will have to diagnose them too
• Delete all the errors and do a test drive of the vehicle. Sometimes there is a glitch in the system and it can result in displaying random errors. Once you test the vehicle you will know if the speedometer is working and if there are any other error codes
• If you changed tires, check the tire size of the new tires. In case there is a difference in dimensions between new and old tires, then you need to reprogram the ECU. The difference in sizes can confuse both the ECU and VSS
• Visually inspect the sensor. The sensor is usually located on the transmission housing. Check it for any visible damage. Also, take a look at the wirings and the connectors. A damaged or frayed sensor wire is a common issue. A loose or corroded electrical connection can also cause a P0500 error code
• Test the vehicle speed sensor with a multimeter. To do so, disconnect the sensor from the car. Then, set the multimer to measure the alternating current (AC). Plug the signal and ground wires to the sensor. Connect the black and red leads with clips to the exposed plugged wires. To simulate the turning of the wheels use a power drill. Attach to it a bit that fits the sensor gear that is inside the sensor. Hold the sensor with one hand, and slowly rotate the drill. Check the readout on the multimeter. If it is increasing with drill speed, then the sensor is okay. In any other case, the sensor is damaged and you will need to replace it.

If you diagnose a problem with the wiring, connectors, or sensor, then you can either fix them or contact a mechanic. You did the most important part – finding an issue.

Check Out P0500 Vehicle Speed Sensor Malfunction Mobile Mechanic Diagnostic:

When to Seek Professional Help for a P0500 Code

Although we encourage DIY mechanics, if you are not comfortable with doing this alone, do not hesitate to contact the mechanic.

Choosing a Reliable Mechanic for Your P0500 Code Issues

If you cannot address this issue alone, you will need to find a reliable mechanic. He must know how to properly handle electronic diagnostics and repair. That includes OBD and multimeter testing, and sensor and wiring replacement.

Cost of Professional P0500 Code Repair

Vehicle speed sensors cost between $50 and $200. The labor cost can rise to $110 to $150.

FAQs: Questions About the P0500 Code

What can trigger a p0500 code.

A P0500 can be triggered by the faulty speed sensor or its wiring, or a broken speedometer. Also, problems with communication between the VSS and ECU can trigger this error. If none of the above is causing this issue, it is worth checking the ECU. 

Can I Drive My Car with a P0500 Code?

Yes, you can drive your car with a P0500 code, but, we would not recommend it. This error code can also result in gear-shifting problems, and disabled ABS and ESP safety systems. The most annoying thing about this error is that you don’t know at what speed are you driving. That can be problematic with all the speed limits around.

How much is the cost to repair a P0500 code?

Repairing a P0500 code usually costs between $250 and $300. That includes new vehicle speed sensors and the cost of labor. If the problem is in its ECU, the cost depends on the problem. Replacing a broken speedometer costs between $130 and $300.

How Can I Prevent P0500 Code Issues in the Future?

Some problems are bound to happen, but you can do two things to prevent the error code P0500 from happening:

• Regular maintenance and inspection. Tell your mechanic to check the wiring and connectors from time to time. Faulty wirings and corroded connectors are a frequent cause for many module and sensor errors
• Reprogram the ECU when you change the tires. If there is a difference in tire dimension it is essential to reprogram the ECU. That way it will have new information about the tires, and calculate the speed properly. 

How to Replace a 2002 Camry Transmission Speed Sensor with Code P0500?

• Wait for the car to cool down. Locate the sensor. It is on the top of the transmission housing. The sensor is secured with a 10mm bolt. To be able to reach it you may need to unplug the engine intake and the cover of the air filter
• Remove the bad vehicle speed sensor. Pull it straight up. If you have any problems, use a flat screwdriver to loosen it
• Get the new sensor. You can buy it online for around $150. Lubricate the rubber seals with oil
• Return the sensor. It is not a difficult task, and with a little wiggling, you should be able to install it. Do not forget to secure it with a 10mm bolt. Plug the connector to the sensor.

The process is not difficult, doesn’t require special tools, and can be done in about half an hour.

Need More Help with a P0500 Code?

Resolving a P0500 code is usually a straightforward process. The problem can be in the faulty sensor, damaged wiring, or loose connectors. After proper diagnosis, the problem is relatively easy and cheap to fix.

But, if the regular fixes don’t solve the problem, then you will need more detailed diagnostics. That includes testing of the ECU and the speedometer. This is an advanced level of electronic diagnostic and we recommend hiring a professional. In any case, do not drive with this error for a long time, and get it fixed as soon as possible. 

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P0500 Code(Speed Sensor), Issues Unresolved - Advice Appreciated...

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Ive got a 96' 7.3 PS that is new to me - When I bought it the guy told me it had a new VSS (vehicle speed sensor) installed - It runs great, shifts great, until seemingly randomly, it revs up in rpms and wont shift (mostly in low gears) until it suddenly slams into gear (very hard shift) - overdrive light comes on flashing -stop and go traffic especially, and especially when I slow down without the brakes, and then go to accelerate - shut the vehicle off and restart - I then drove it 600 miles towing a load and it never did it once - Took it to our diesel mechanic, very reliable and good - pulled the code P0500 - bad vehicle speed sensor - He replaced and triple checked all the wiring, the VSS itself (brand new), and cleaned all the grounds well, pulled the cover on the rear diff and inspected the teeth... Still did it - He then installed a loaner PCM, known to be good (next diagnostic test before sending mine off to be rebuilt)- the code says it can only be the wiring/vss/pcm - picked it up yesterday with the loaner PCM and sure enough, after driving it for 20 minutes, same symptoms... If anyone has ever gone down this road or has advice, I'd appreciate it... New to diesels, spent almost 9k$ for the truck and I'm almost 4k$ into shop time (new rear disc brake kit, fuel pump, fluids checked and serviced, rear diff inspected and serviced, windshield replaced, new double u-joint on driveline) - Feeling discouraged... Mechanic said if this PCM loan doesn't fix it, he's out of ideas... Thanks in advance - C  

I think the PCM gets input from the PSOM (Programmable Speedometer/Odometer Module ... PSOM gets input from VSS), so don't discount a problem with it. Cheers!  

Right on, thanks - would that not show up as its own code?  

INdeed - Now that the wiring/VSS/and PCM have been addressed, how does one go about testing the PSOM??  

Might have to find a place to do that. If you do take it out, inspect the flexible "circuit board" on the back for irregularities. Cheers!  

Don't forget that a wire that is broken inside the insulation is an intermittent connection. Did you trace the wires all the way from the VSS? Did you replace the vss pigtail in case it was broken inside? You replaced the VSS twice yet the problem remains. You replaced the PCM. Now chase the wiring and the PSOM.  

Here's all the info for a P0500 I have. Cheers!  

Attachments

• PSOM Introduction.pdf 354.2 KB Views: 75
• PSOM Pinpoint Tests.pdf 359.3 KB Views: 57
• 1997 VSS Indroduction.pdf 358.3 KB Views: 49
• 1997 VSS Pinpoint Tests.pdf 376.2 KB Views: 47
• 060-007 Instrument Cluster.pdf 210.6 KB Views: 38
• 1997 064-001 VSS Diagram.pdf 275.3 KB Views: 38

22 years ago when I bought my truck, I replaced the speed sensor also. (On rear diff, I think.) I don't remember what code/symptom motivated this. But the problem turned out that my transmission needed to be rebuilt. One of the symptoms I do remember is the flashing OD light. That means the transmission has set a code. Good luck figuring it out and resolving it.  

Thanks for the info there Patrick... The truck is going back into the shop this morning to have the lonaer PCM removed and my old one re-installed... Mechanic, who has the best reputation in town for these trucks, says he's triple checked the wiring from the VSS forward, and all grounds... Ran into a buddy who's also pretty good with 7.3s and he said to check the wires ontop of the transmission; some heat guard that the wires run over and they can rub there - also said to check passenger side door wiring, where they pass through (inside the boot) - Have yet to do that, and pretty hard to get to those wires on the tranny to see what kind of shape they're in - anyone have any experience with these two potential problem makers?? Did I mention that it tends to happen after things heat up, or on a real hot day (which where we are in Alaska is maybe 70F) - Doesn't seem to happen from a cold start until about 15 or 20 minutes into driving...  

Looking at the wires is a waste of time. A wire can break inside the insulation and cause problems. Are you stripping off ALL of the insulation to see if the wire is intact? You need to check the wires electrically to see if there is continuity from end to end and if there is a short to power or a short to ground.  

Good point, and sounds like a real pain! Vss to pcm is triple checked and confident it’s not the issue- however, latest update came yesterday when the mechanic called a trusted transmission shop in Anchorage and described the symptoms and the list done to it so far- the tranny shop said unequivocally, it is the PSOM- apparently they have seen this issue with the OBSs many times - it is currently being removed and will get sent off to Seattle for a rebuild (the PSOM)- will let you know how it goes in a week or two - Hoping all this is worth it for a good running, low mileage OBS...  

PSOM rebuilt and reinstalled, problem solved!  

Glad to hear you got your problem solved  

Fordger said: ...the speedometer is sticking at 35 mph, no matter the speed... Click to expand...

Fordger said: ...upon restarting, it didn't read at all (stayed at 0)... Click to expand...

1983 Ford Bronco PSOM picture | SuperMotors.net

Could be anything - faulty board connection, a sloppy rebuild, or a non-PSOM problem. I suggest removing the PSOM yourself and inspect the 12-pin connector. If it looks alright, spray it with DeOxit D5 and re-assemble. Does the problem go away again? I found several YouTube videos on the PSOM. Maybe one of them will spark an idea. One video says that there are 3 cluster models: 92-93, 94-95, and 96-97; BUT the PSOM among all years is interchangeable. So you could probably score another PSOM at a junkyard at low cost. Or you can find them on eBay. I don't know, just throwing out ideas.  

Here's an interesting angle I found on YouTube. This guy had similar a problem to yours and fixed it by reducing the gap from the speed sensor to the differential tone ring to less than 1/1000". An oscilloscope might be a helpful diagnostic tool. Reducing the gap probably strengthened the speed sensor signal. Why was it weak to begin with? Wiring/connector fault? Bad sensor? Whatever it was, the stronger signal helped to overcome it. A scope could trace the signal and help you figure out where the signal is being degraded. To return to my previous comment, I would find every connector from the speed sensor to the PSOM and spray them all down with DeOxit D5. This might fix the whole problem.  

Update: One out of the 20 solders on the rebuild was faulty - Rebuilt the rebuild and all is working good - RESOLVED - Now on to the no crank issue (seperate, and will start seperate thread) - Thanks for all the help on here, great site...  

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Help with VSS code P0500

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my truck has an intermittent problem. occasionally when i first start it and drive the O/D light flashes and the speedo is dead. if i turn the key of and on again while moving the light goes off and the speedo jumps to life. i keep getting a P0500 VSS malfunction code. i have changed the differential sensor as well as the 2 on the transmission but the problem persists. the connections at the sensors seem to be clean and tight. i am to understand that i might have a bad wire or connection but i can't find anything wrong. does anybody know where the other end of the wire loom plugs in? i would assume it's toward the front somewhere. that's the only thing i haven't been able to check yet. somewhere i also read that low trans fluid could contribute to this problem but it's ok. would a trans service fix it? in reading the various forums i've come to understand that this problem is not uncommon in fact my excursion had the same issue but the differential sensor fixed it. thanks in advance for the help, john  

Proper Diagnostic Routines....by someone that can find their a$$ with both hands. The speed signal comes from the ABS module. The module looks at the wheel speed sensors and outputs a vehicle speed on the SCP communications network. This is read by the instrument cluster, PCM, radio, Overhead Trip Computer and a couple of other things. Hope this helps.  

the ABS light isn't on. should i change the module to see if that fixes it? where is it? thanks  

Here is an explination of the code OBD-II Trouble Code: P0500 Vehicle Speed Sensor Malfunction  

OK, first i would like to thank those who offered assistance. now i will tell you what i found. all the components checked OK. somewhere i read that there could be a problem in the wiring between the speed sensor and wherever it goes at the front. i decided to start at the rear. logically that is where the wire is most exposed and has the most movement between the differential and the frame. i went to the junk yard and got the wire between the sensor and the frame rail. i cut it as close to the frame as space would allow and soldered the newer piece in, complete with shrink wrap of course. i cleared the 0500 code and went for a ride. problem solved. i then went to the workbench and stripped the cover off the wire loom and found that one of the wires had parted about a foot up from the plug. may have been hit by a rock or just got work hardened and broke from flexing up and down. i'm glad i have it fixed, it's been bothersome for years. i hope if anyone else has this issue this will help. john  

Good job. :thumbsup: And thanks for the feedback.  

That won't work on the PSD. Ford trucks have an OBD II port that is shaped a whole lot different than the one shown. Answered on my iPhone.  

P0500 Fix Here's another fix. My truck had no speedometer, the OD light was blinking and the ABS light was on. I hooked up a scanner with live data stream capabilities and saw that the VSS was reading when I was driving. I also noticed that the trailer tow package fuse in the engine compartment was blown. I replaced the fuse and checked the ground near the driver side headlamp in the engine compartment. I think this was the ground for the ABS. The ground was loose and I retightened it. I'm not sure if it was the fuse (I read in another post that the tow package fuse was giving them electrical faults) or the ground, but the speedometer started reading, the ABS light went off and the flashing OD light went away.  

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Guys, today I was trying to check fuses because my 4wd will not engage. Everything looked ok and I had to meet the wife for dinner so I put covers back on and took off. All of a sudden I have abs light on and no speedo. No clue where to start on this one. My truck is 06 f250 Tuscany with 93k miles. All of a sudden things are falling apart. Help. Sent from AutoGuide.com Free App  

rear differential speed sensor  

Where is it and how do I check it? Thanks Sent from AutoGuide.com Free App  

Its on the rear differential, Check the resistance. Should be 800-1800 ohms P0500 - Vehicle Speed Sensor A Description: Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Possible Causes: • Open in the VSS harness circuit • Short to GND in the VSS harness circuit • Short to PWR in the VSS harness circuit • Damaged wheel speed sensors • Damaged wheel speed sensor harness circuits • Damaged ABS module • Damaged PCM Diagnostic Aids: Monitor the VSS PID while driving the vehicle. This DTC is set when the PCM detects a sudden loss of vehicle speed signal over a period of time. If vehicle speed data is lost, check the source of the vehicle speed input.  

Will do. Just weird that it happens as soon as I check fuses for the 4wd. 4wd stops working, #4 injector is going out, and now this. Get this thing paid off and then it starts falling apart. Sent from AutoGuide.com Free App  

I know the feeling, but I have to remind myself that nothing lasts forever. I love my truck, it was the worst 3 weeks waiting to get my studs and oem gaskets done.  

I just need to take some time and start tracking down these issues. I saw someone mention to remove both negatives from the batts and reset the system but I have a custom tune so I would be worried about that. Sent from AutoGuide.com Free App  

Removing the battery cables will have no effect on custom tuning.  

Removed battery cables this weekend. No change! Finally found my voltmeter to check the ohm and viola - nothing! Looks like the sensor went bad. Now to replace - Does anyone have the item number for that sensor? I have seen sensors from $20 to $120 but none say they are the right number? Per an online search i found F85Z-2L373-AB. Is that correct? are there any others to cross reference? Thanks all  

This should be the correct part number. (DY-998 Vehicle Build Date before: 12/4/2005), (DY-1073 Vehicle Build Date after: 12/5/2005). I'm thinking that the DY-1073 replaced the DY-998.  

Ordered new VSS and installed. One of the easiest pieces to replace for sure. Still no change. Getting P0500 code with new sensor. Where do I go from here as far as troubleshooting this problem? thanks  

Still no speedometer? I apologize if this is a silly question, but I assume you cleared the code after the new sensor install?  

It's not silly at all because I did not. Didn't even think to clear it as I assumed it would not throw a code if it was now seeing the connection. I might have been wrong. I will clear code and see what happens. Thanks for the feedback. Stay tuned for update. Sent from AutoGuide.com Free App  

Ok, I reset code and no change. Still no speedo, and light is on and odometer is not moving. Where to start now? Sent from AutoGuide.com Free App  

Ok, were gonna have to start checking the wiring. I pretty sure the harness from the sensor goes to the ABS first then on to the ECM. I've heard of some folks finding broken wires inside the loom as they trace it to the ABS module. Lets start at the rear and work our way towards the front following the wires the whole way.  

Ok. Sounds like the hunt is on. Do I need to open up the wire protectors and then zip tie them back once I am done in that area? Haven't done this before so I want to be prepared. I won't get a chance to look into this until next weekend at the earliest so I'm trying to do my homework ahead of time. Sent from AutoGuide.com Free App  

Yup, thats a good start, if you trace them all the way to the ABS you can then use a DMM (Digital Multi Meter) to check continuity of the wires from one location all the way to the other. Just a shot in the dark, but i'd say that youve got a broken wire somewhere, also check the VSS sensor just for s*** and giggles, I've read where some folks have had some bad new sensors.  

I did check it when I got it out of the box with my DMM and showed 0 ohms? I just assumed I was doing it wrong or that it was the correct reading. I do remember someone saying it should show about .8 ohms, Is that correct?  

Should be 800-1800 ohms.  

any luck on finding a broken wire or getting your speedo to work?  

Sorry for no update in almost 12 months. I had a company car so the truck didnt get driven often, now I am changing jobs and it will be my daily driver and I still have the issue. No speedo and no boost over 16psi. ABS light stays on. I have inspected all wire looms and they look fine, I hate to open up the wires from end to end and expose every wire under the truck. I have continued to search for options. Maybe I need to check the ABS module - Where can I find that? Option 2 is to simply take it to a shop.  

well li am glad to hear my truck is not the only one with this issue. been almost a year on mine since I did the head job and the issue came up right after. I changed the VSS and did nothing. I have not taken the time to check wires because I am not an electrical guy. I read somewhere about the ABS Control Module but that is unlikely the case I would think. I'd like to know if you found anything. I did locate the other day on the driver front side just under the ABS module a 4-pin connector that is not hooked to anything. but I haven't located it's mate yet.  

You need a good scanner in order to get the informaton from the sensors on the front wheel hubs. You could also get that info if one of those got bad. Get a brake shop to scan your truck with a ABS scanner and check the live data from the two front hub sensors. You should get the same information from both of them. Be careful because if the ABS light is on, the ABS system will not engage and you could slip under some wet conditions.  

Thanks Jorge; I know a lot of mechanics but I don't know any that have a scanner for ABS. of the many issues that keep popping up I'm hoping this solves a few of them. up to and including lag and not a lot of power. this truck has turned into the Bane of my existence even tho I like it, it drives me crazy.  

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P0500 Error Code – Meaning, Causes, Symptoms, and Fixes

Manufacturers equip modern vehicles, produced since 1996, with an on-board diagnostic computer system. That system detects malfunctions from various components and registers them as alphanumeric codes. Usually, the engine check light illuminates whenever the ECM logs a fault code.

Whenever you suspect a malfunction on your vehicle’s drivetrain , Powertrain, or other parts of the car, scan the car with an OBD2 scan reader. One of the fault codes you may retrieve is the P0500 trouble code.

Yes, your in-depth knowledge of the meaning, causes, symptoms, common diagnostic mistakes, and fixes will add to your on-the-go comfort and experience. That is what this article is aimed to serve. 

Code P0500 Definition

Vehicle Speed Sensor Malfunction

What Does P0500 Mean?

The powertrain control module registers Diagnostics trouble code (DTC) P0500 whenever it detects incorrect reading or no signal at all from the vehicle speed sensor (VSS).

A Vehicle speed sensor (VSS) is an electromagnetic sensor that reads the wheel rotation via a rotating reluctor ring. The VSS is located on the transmission to set the reluctor ring in close proximity.

The automaker fixed the reluctor ring to the transmission output shaft to spin along with it. As the reluctor ring spins along with the transmission, the VSS sends the vehicle speed or transmission output speed to the PCM.

It is essential to note that the definition may differ from vehicle to vehicle. For instance, P0500 Toyota may have a different meaning from P0500 Mercedes.

What Are the Symptoms of Code P0500?

You may notice a couple of symptoms indicating issues with the vehicle speed sensor. If you experience one or more, you must diagnose and fix the underlying faults before it escalates to expensive repairs.

• The automatic transmission system may not shift properly
• Traction control engaging when it shouldn’t or not engaging at all.
• Defective speedometer
• Erratic or inactive ABS performance.
• Illuminated check engine light.

What Cause of Code P0500?

VSS comes in different variations. This means the causes may vary. If you’re wondering what causes the P0500 code, here are the potential causes you need to look into;

• Lousy Vehicle speed sensor mechanism
• Defective ECM or other system modules
• ECM is not configured with the size of tires on the vehicle
• Short or open VSS wiring harness or connectors
• Damaged drive gears.

How Serious Is Code P0500?

P0500 is a moderate case because transmission shifting issues may lead to driving discomfort, especially on automatic transmission vehicles. However, the P0500 error code may not prevent the car from running, but you may experience hard gear shifting, which will reduce your confidence in the wheel. If the speedometer is not working, it’ll require caution to drive the vehicle within the speed limit.

If the traction control and ABS systems are not working, you’ll have to drive cautiously, especially in extreme weather conditions. It’ll also display a check engine light or traction control light to notify the driver of any imminent faults within the system components.

Code P0500 Common Diagnosis Mistakes

The common P0500 diagnostic mistake most mechanics make is changing the speedometer without diagnosing the cause. The speedometer may stop counting because of a defective VSS, and replacing it will not solve the problem. Hence, it’s essential to diagnose the vehicle before replacing any components.

Tools Needed to Diagnose Code P0500

• OBD2 scan tool
• Digital Multimeter

How to Diagnose and Repair Code P0500

Here’s an effective way of diagnosing error code P0500;

Pull out the fault codes by plugging in an OBD2 scan on the vehicle OBD2 access port under the dashboard. Write the fault codes along with the car freeze-frame data.

Erase the trouble codes with the scan tool and test drive the car for 20-30 minutes. Once you’re back from the road test, re-scan the vehicle and see if the code will reappear.

Do a visual inspection. Check the vehicle speed sensor wiring harness and connectors for any physical damage and replace them. This will help fix damaged components without replacing unnecessary parts.

After confirming the wiring harness, connectors, and external parts are working pretty fine, use the OBD2 scanner to see if the VSS is present while running. This helps determine if the drive gear is functioning as it should.

Check the vehicle speed sensor for electric voltage with a digital multimeter to see if there’s electrical flow.

Now, you’ll be wondering, ‘How do I fix code P0500?’ here are the potential fixes;

• Replace faulty vehicle speed sensor drive gear
• Resolve poor or no electrical current
• Repair or replace the lousy wiring harnesses and connectors
• Replace the vehicle speed sensor if damaged.

Additional Comments Regarding Error Codes P0500

Depending on the make and model of your vehicle, the vehicle speed sensor location varies from vehicle to vehicle. If you own a rear-wheel-drive car, you may find the VSS on the transmission or on the rear differential . In contrast, the VSS is on the wheel hub in front-wheel drive vehicles. Newer cars may have VSS on each wheel.

The PCM collects signals from the vehicle speed sensor and displays accurate readings on the odometer or speedometer. And the car computer uses the collected data to tell the transmission when to shift to a higher or lower gear and work in harmony with other safety features, such as the traction control and anti-lock braking system.

Same Problems with different Error Codes

Here are fault codes with the same or related problems with trouble code P0500.

• P0503 Vehicle Speed Sensor “A” High/Erratic/Intermittent
• P0502 Vehicle Speed Sensor “A” Low Input
• P0501 Vehicle Speed Sensor “A” Range/Performance.

Diagnostics trouble code (DTC) P0500 is not a severe case that may require suspending your adventure to take your car to the auto repair center. Whenever a check engine light illuminates on the dashboard, visit a mechanic garage to track down the cause of the light and fix it. Trouble codes log in to help a technician detect and fix the cause of the problem. It also prevents minor issues from turning into major repairs.

Osuagwu Solomon

Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. He started writing automotive articles to share his garage experience with car enthusiasts and armature mechanics. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyer’s guides, and car and tools comparisons.

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